add GuessTheWord solution apps: GuessTheWordViewModel, GuessTheWordTransformation, GuessTheWordLiveData, GuessTheWordDataBinding

2025-12-06 06:16:03 +00:00 · 2019-04-25 12:09:48 -07:00 · 2019-04-25 12:09:48 -07:00 · 55560b6b49
commit 55560b6b49
parent 2710dc30d3
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--- a/GuessTheWordDataBinding/README.md
+++ b/GuessTheWordDataBinding/README.md
@ -0,0 +1,45 @@
+ViewModel and LiveData with Data Binding - Solution Code
+==================================
+
+This is the starter code for the ViewModel and LiveData with Data Binding codelab.
+
+Introduction
+------------
+
+This starter app is a two player game, GuessTheWord. It is a word guessing app you can play with one or more friends. To play, hold the device in landscape, facing away from you with your thumbs on the **Skip** and **Got It** buttons. Your friends can then give you clues to help you guess the word. If you get the word right, press **Got It**. If you're stuck, press **Skip** or you can use the **End** button to end the game.
+This code demostrates how to use Data Binding with the Android Architecture components, LiveData and ViewModel.
+
+Pre-requisites
+--------------
+
+You need to know:
+- How to open, build, and run Android apps with Android Studio.
+- How to use the Navigation Architecture Component
+- Passing the data between navigation destinations.
+- Read the logs using the Logcat.
+
+
+Getting Started
+---------------
+
+1. Download and run the app.
+
+License
+-------
+
+Copyright 2019 Google, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
--- a/GuessTheWordDataBinding/app/.gitignore
+++ b/GuessTheWordDataBinding/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/GuessTheWordDataBinding/app/build.gradle
+++ b/GuessTheWordDataBinding/app/build.gradle
@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: "androidx.navigation.safeargs"
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "com.example.android.guesstheword"
+        minSdkVersion 19
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    dataBinding {
+        enabled = true
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    testImplementation 'junit:junit:4.12'
+
+    // KTX
+    implementation 'androidx.core:core-ktx:1.0.1'
+
+    // Navigation
+    implementation "android.arch.navigation:navigation-fragment-ktx:1.0.0"
+    implementation "android.arch.navigation:navigation-ui-ktx:1.0.0"
+
+    //ViewModel and LiveData
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
+}
--- a/GuessTheWordDataBinding/app/proguard-rules.pro
+++ b/GuessTheWordDataBinding/app/proguard-rules.pro
@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/GuessTheWordDataBinding/app/src/androidTest/java/com/example/android/guesstheword/ExampleInstrumentedTest.kt
+++ b/GuessTheWordDataBinding/app/src/androidTest/java/com/example/android/guesstheword/ExampleInstrumentedTest.kt
@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword
+
+import androidx.test.InstrumentationRegistry
+import androidx.test.runner.AndroidJUnit4
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getTargetContext()
+        assertEquals("com.example.android.guesstheword", appContext.packageName)
+    }
+}
--- a/GuessTheWordDataBinding/app/src/main/AndroidManifest.xml
+++ b/GuessTheWordDataBinding/app/src/main/AndroidManifest.xml
@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.android.guesstheword">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_guess_it"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_guess_it_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme"
+        tools:ignore="GoogleAppIndexingWarning">
+
+        <!-- Screen locked to landscape for easier play -->
+        <!-- configChanges attribute makes the following actions NOT cause a config change  -->
+        <!-- screenOrientation attribute sets the default animation-->
+        <activity android:name=".MainActivity">
+
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/GuessTheWordDataBinding/app/src/main/ic_guess_it-web.png
+++ b/GuessTheWordDataBinding/app/src/main/ic_guess_it-web.png
--- a/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/MainActivity.kt
+++ b/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/MainActivity.kt
@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+
+/**
+ * Creates an Activity that hosts all of the fragments in the app
+ */
+class MainActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.main_activity)
+    }
+
+}
--- a/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/game/GameFragment.kt
+++ b/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/game/GameFragment.kt
@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.game
+
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Toast
+import androidx.databinding.DataBindingUtil
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
+import androidx.navigation.fragment.NavHostFragment.findNavController
+import com.example.android.guesstheword.R
+import com.example.android.guesstheword.databinding.GameFragmentBinding
+
+/**
+ * Fragment where the game is played
+ */
+class GameFragment : Fragment() {
+
+    private lateinit var binding: GameFragmentBinding
+
+    private lateinit var viewModel: GameViewModel
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
+                              savedInstanceState: Bundle?): View? {
+
+        // Inflate view and obtain an instance of the binding class
+        binding = DataBindingUtil.inflate(
+                inflater,
+                R.layout.game_fragment,
+                container,
+                false
+        )
+        Log.i("GameFragment", "Called ViewModelProviders.of")
+
+        viewModel = ViewModelProviders.of(this).get(GameViewModel::class.java)
+
+        // Set the viewmodel for databinding - this allows the bound layout access
+        // to all the data in the VieWModel
+        binding.gameViewModel = viewModel
+
+        // Specify the current activity as the lifecycle owner of the binding.
+        // This is used so that the binding can observe LiveData updates
+        binding.lifecycleOwner = this
+
+        // Observer for the Game finished event
+        viewModel.eventGameFinish.observe(this, Observer<Boolean> { hasFinished ->
+            if (hasFinished) gameFinished()
+        })
+
+        return binding.root
+    }
+
+    private fun gameFinished() {
+        Toast.makeText(activity, "Game has just finished", Toast.LENGTH_SHORT).show()
+        val action = GameFragmentDirections.actionGameToScore()
+        action.score = viewModel.score.value?:0
+        findNavController(this).navigate(action)
+        viewModel.onGameFinishComplete()
+    }
+}
--- a/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/game/GameViewModel.kt
+++ b/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/game/GameViewModel.kt
@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.game
+
+import android.util.Log
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+/**
+ * ViewModel containing all the logic needed to run the game
+ */
+class GameViewModel : ViewModel() {
+
+    // The current _word
+    private val _word = MutableLiveData<String>()
+    val word: LiveData<String>
+        get() = _word
+
+    // The current score
+    private val _score = MutableLiveData<Int>()
+    val score: LiveData<Int>
+        get() = _score
+
+    // Countdown time
+    private val _eventGameFinish = MutableLiveData<Boolean>()
+    val eventGameFinish: LiveData<Boolean>
+        get() = _eventGameFinish
+
+
+    // The list of words - the front of the list is the next _word to guess
+    private lateinit var wordList: MutableList<String>
+
+
+    /**
+     * Resets the list of words and randomizes the order
+     */
+    private fun resetList() {
+        wordList = mutableListOf(
+                "queen",
+                "hospital",
+                "basketball",
+                "cat",
+                "change",
+                "snail",
+                "soup",
+                "calendar",
+                "sad",
+                "desk",
+                "guitar",
+                "home",
+                "railway",
+                "zebra",
+                "jelly",
+                "car",
+                "crow",
+                "trade",
+                "bag",
+                "roll",
+                "bubble"
+        )
+        wordList.shuffle()
+    }
+
+    init {
+        _word.value = ""
+        _score.value = 0
+        Log.i("GameViewModel", "GameViewModel created!")
+        resetList()
+        nextWord()
+    }
+
+    /**
+     * Callback called when the ViewModel is destroyed
+     */
+    override fun onCleared() {
+        super.onCleared()
+        Log.i("GameViewModel", "GameViewModel destroyed!")
+    }
+
+    /** Methods for updating the UI **/
+    fun onSkip() {
+        if (!wordList.isEmpty()) {
+            _score.value = (_score.value)?.minus(1)
+        }
+        nextWord()
+    }
+    fun onCorrect() {
+        if (!wordList.isEmpty()) {
+            _score.value = (_score.value)?.plus(1)
+        }
+        nextWord()
+    }
+
+    /**
+     * Moves to the next _word in the list.
+     */
+    private fun nextWord() {
+        if (wordList.isEmpty()) {
+            onGameFinish()
+
+        } else {
+            //Select and remove a _word from the list
+            _word.value = wordList.removeAt(0)
+        }
+    }
+
+
+
+    /** Method for the game completed event **/
+
+    fun onGameFinishComplete() {
+        _eventGameFinish.value = false
+    }
+
+    fun onGameFinish() {
+        _eventGameFinish.value = true
+    }
+
+}
--- a/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreFragment.kt
+++ b/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreFragment.kt
@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.score
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
+import androidx.navigation.fragment.findNavController
+import com.example.android.guesstheword.R
+import com.example.android.guesstheword.databinding.ScoreFragmentBinding
+
+/**
+ * Fragment where the final score is shown, after the game is over
+ */
+class ScoreFragment : Fragment() {
+
+    private lateinit var viewModel: ScoreViewModel
+    private lateinit var viewModelFactory: ScoreViewModelFactory
+
+    override fun onCreateView(
+            inflater: LayoutInflater,
+            container: ViewGroup?,
+            savedInstanceState: Bundle?
+    ): View? {
+
+        // Inflate view and obtain an instance of the binding class.
+        val binding: ScoreFragmentBinding = DataBindingUtil.inflate(
+                inflater,
+                R.layout.score_fragment,
+                container,
+                false
+        )
+
+        viewModelFactory = ScoreViewModelFactory(ScoreFragmentArgs.fromBundle(arguments!!).score)
+        viewModel = ViewModelProviders.of(this, viewModelFactory)
+                .get(ScoreViewModel::class.java)
+        binding.scoreViewModel = viewModel
+
+        // Specify the current activity as the lifecycle owner of the binding.
+        // This is used so that the binding can observe LiveData updates
+        binding.lifecycleOwner = this
+
+        // Navigates back to game when button is pressed
+        viewModel.eventPlayAgain.observe(this, Observer { playAgain ->
+            if (playAgain) {
+                findNavController().navigate(ScoreFragmentDirections.actionRestart())
+                viewModel.onPlayAgainComplete()
+            }
+        })
+
+        return binding.root
+    }
+}
--- a/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreViewModel.kt
+++ b/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreViewModel.kt
@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.score
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+/**
+ * ViewModel for the final screen showing the score
+ */
+class ScoreViewModel(finalScore: Int) : ViewModel() {
+
+    private val _score = MutableLiveData<Int>()
+    val score: LiveData<Int>
+        get() = _score
+
+    private val _eventPlayAgain = MutableLiveData<Boolean>()
+    val eventPlayAgain: LiveData<Boolean>
+        get() = _eventPlayAgain
+
+
+    init {
+        _score.value = finalScore
+    }
+
+    fun onPlayAgain() {
+        _eventPlayAgain.value = true
+    }
+
+    fun onPlayAgainComplete() {
+        _eventPlayAgain.value = false
+    }
+
+
+}
--- a/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreViewModelFactory.kt
+++ b/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreViewModelFactory.kt
@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.score
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+
+class ScoreViewModelFactory (private val finalScore: Int) : ViewModelProvider.Factory {
+
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        if (modelClass.isAssignableFrom(ScoreViewModel::class.java)) {
+            return ScoreViewModel(finalScore) as T
+        }
+        throw IllegalArgumentException("Unknown ViewModel class")
+    }
+
+}
--- a/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/title/TitleFragment.kt
+++ b/GuessTheWordDataBinding/app/src/main/java/com/example/android/guesstheword/screens/title/TitleFragment.kt
@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.title
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
+import com.example.android.guesstheword.R
+import com.example.android.guesstheword.databinding.TitleFragmentBinding
+
+/**
+ * Fragment for the starting or title screen of the app
+ */
+class TitleFragment : Fragment() {
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
+                              savedInstanceState: Bundle?): View {
+        // Inflate the layout for this fragment
+        val binding: TitleFragmentBinding = DataBindingUtil.inflate(
+                inflater, R.layout.title_fragment, container, false)
+
+        binding.playGameButton.setOnClickListener {
+            findNavController().navigate(TitleFragmentDirections.actionTitleToGame())
+        }
+        return binding.root
+    }
+}
--- a/GuessTheWordDataBinding/app/src/main/res/anim/slide_in_right.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/anim/slide_in_right.xml
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <translate
+        android:duration="700"
+        android:fromXDelta="100%"
+        android:fromYDelta="0%"
+        android:toXDelta="0%"
+        android:toYDelta="0%" />
+</set>
--- a/GuessTheWordDataBinding/app/src/main/res/anim/slide_out_left.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/anim/slide_out_left.xml
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <translate
+        android:duration="700"
+        android:fromXDelta="0%"
+        android:fromYDelta="0%"
+        android:toXDelta="-100%"
+        android:toYDelta="0%" />
+</set>
--- a/GuessTheWordDataBinding/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,32 @@
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="742.029"
+    android:viewportHeight="742.029">
+    <group
+        android:translateX="115.014496"
+        android:translateY="115.014496">
+        <path
+            android:fillColor="#FFFFFF"
+            android:pathData="M0,0h513.3v513.3h-513.3z" />
+        <path
+            android:fillColor="#6AB343"
+            android:pathData="M339.3,122.5c-7.1,-11.2 -16.8,-20.5 -28.3,-27.2l15.1,-27.6c2.5,-4.5 0.8,-10.1 -3.6,-12.5l-0.1,-0.1c-4.5,-2.4 -10,-0.7 -12.5,3.7l-15.6,28.6c-12.6,-4.4 -25.8,-6.6 -39.1,-6.4c-13.8,0 -26.3,2.1 -37.4,6.3l-15.6,-28.5c-2.5,-4.5 -8.1,-6.1 -12.5,-3.7c-4.5,2.5 -6.1,8.1 -3.7,12.5l0,0l15.4,28c-2.7,1.8 -5.4,3.8 -7.9,5.9c-16.3,13.8 -27.2,30.1 -32.9,49.1l51.1,21.3c2.7,-10 8.3,-19 16,-26c7.7,-6.9 17.5,-10.4 29.3,-10.4c11.3,0 20.3,3.2 27.1,9.6c6.6,5.9 10.3,14.4 10.2,23.3c0.1,7.3 -2,14.4 -6,20.4c-4,5.9 -10.4,12.9 -19.3,20.9c-15.4,13.3 -26.1,25.2 -32,35.6S228,268 228,282.2v14.7c19.2,-7.2 38.6,-7.1 58.2,0v-7.1c0,-10.4 1.9,-19 5.6,-25.8c3.7,-6.8 10.6,-15 20.7,-24.4c13,-12.4 22.8,-24.1 29.3,-34.9c6.5,-10.8 9.8,-23.9 9.8,-39.3C351.7,150.2 347.4,135.3 339.3,122.5z" />
+    </group>
+</vector>
--- a/GuessTheWordDataBinding/app/src/main/res/drawable/ic_launcher_foreground.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/drawable/ic_launcher_foreground.xml
@ -0,0 +1,54 @@
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="742.029"
+    android:viewportHeight="742.029">
+    <group
+        android:translateX="115.014496"
+        android:translateY="115.014496">
+        <path
+            android:fillColor="#6ab343"
+            android:pathData="M256.22,464c-23.07,0 -42.89,-8.29 -58.91,-24.64s-24.1,-36.25 -24.1,-59.27 8.12,-42.84 24.14,-58.86 35.83,-24.14 58.87,-24.14 42.95,8.11 59.27,24.1 24.63,35.85 24.63,58.9 -8.27,43 -24.59,59.32S279.26,464 256.22,464Z" />
+        <path
+            android:fillColor="#fff"
+            android:pathData="M256.22,303.09q32.23,0 55.07,22.38t22.83,54.62q0,32.25 -22.83,55.07T256.22,458Q224,458 201.6,435.16t-22.39,-55.07q0,-32.23 22.39,-54.62t54.62,-22.38m0,-12c-24.69,0 -45.92,8.71 -63.11,25.9s-25.9,38.41 -25.9,63.1 8.69,46 25.82,63.48S231.47,470 256.22,470s46.07,-8.87 63.55,-26.35 26.35,-38.87 26.35,-63.56 -8.89,-46 -26.43,-63.18 -38.84,-25.82 -63.47,-25.82Z" />
+        <path
+            android:fillColor="#f5f5f5"
+            android:pathData="M256.38,330.37q-20.9,0 -35.39,14.5t-14.5,35.38A49.13,49.13 0,0 0,221 415.93a47.66,47.66 0,0 0,35.39 14.79,50.5 50.5,0 0,0 50.46,-50.47 47.67,47.67 0,0 0,-14.79 -35.38A49.13,49.13 0,0 0,256.38 330.37Z" />
+        <path
+            android:fillColor="#00000000"
+            android:pathData="M256.64,373.29L256.64,346.43"
+            android:strokeWidth="10"
+            android:strokeColor="#6ab343"
+            android:strokeLineCap="round"
+            android:strokeLineJoin="round" />
+        <path
+            android:fillColor="#00000000"
+            android:pathData="M262.48,384.63L282.67,396.96"
+            android:strokeWidth="10"
+            android:strokeColor="#6ab343"
+            android:strokeLineCap="round"
+            android:strokeLineJoin="round" />
+        <path
+            android:fillColor="#f5f5f5"
+            android:pathData="M256.62,373.29a7.15,7.15 0,0 0,-7.21 7.21,7.11 7.11,0 0,0 2.1,5.16 6.91,6.91 0,0 0,5.11 2.14,7.31 7.31,0 0,0 7.3,-7.3 6.89,6.89 0,0 0,-2.14 -5.12A7.11,7.11 0,0 0,256.62 373.29Z"
+            android:strokeWidth="7"
+            android:strokeColor="#6ab343" />
+    </group>
+</vector>
--- a/GuessTheWordDataBinding/app/src/main/res/layout/game_fragment.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/layout/game_fragment.xml
@ -0,0 +1,150 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+    <data>
+
+        <variable
+            name="gameViewModel"
+            type="com.example.android.guesstheword.screens.game.GameViewModel" />
+
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/game_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".screens.game.GameFragment">
+
+        <TextView
+            android:id="@+id/word_is_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="16dp"
+            android:fontFamily="sans-serif"
+            android:text="@string/word_is"
+            android:textColor="@color/black_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/word_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="packed" />
+
+        <TextView
+            android:id="@+id/word_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:animateLayoutChanges="true"
+            android:fontFamily="sans-serif"
+            android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+            android:textColor="@color/black_text_color"
+            android:textSize="34sp"
+            android:textStyle="normal"
+            android:text="@{@string/quote_format(gameViewModel.word)}"
+            app:layout_constraintBottom_toTopOf="@+id/score_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/word_is_text"
+            app:layout_constraintVertical_chainStyle="packed"
+            tools:text="&quot;Tuna&quot;" />
+
+        <TextView
+            android:id="@+id/timer_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:layout_marginBottom="8dp"
+            android:fontFamily="sans-serif"
+            android:textColor="@color/grey_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/score_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:text="0:00" />
+
+        <TextView
+            android:id="@+id/score_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:fontFamily="sans-serif"
+            android:textColor="@color/grey_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            android:text="@{@string/score_format(gameViewModel.score)}"
+            app:layout_constraintBottom_toTopOf="@+id/guideline"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:text="Score: 2" />
+
+        <Button
+            android:id="@+id/skip_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:text="@string/skip"
+            android:theme="@style/SkipButton"
+            android:onClick="@{() -> gameViewModel.onSkip()}"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintHorizontal_chainStyle="spread_inside"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/guideline" />
+
+
+        <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/guideline"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            app:layout_constraintGuide_end="96dp" />
+
+        <Button
+            android:id="@+id/correct_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:text="@string/got_it"
+            android:theme="@style/GoButton"
+            android:onClick="@{() -> gameViewModel.onCorrect()}"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/end_game_button"
+            app:layout_constraintStart_toEndOf="@+id/skip_button"
+            app:layout_constraintTop_toTopOf="@+id/guideline" />
+
+        <Button
+            android:id="@+id/end_game_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="16dp"
+            android:text="@string/end_game"
+            android:theme="@style/SkipButton"
+            android:onClick="@{() -> gameViewModel.onGameFinish()}"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/guideline" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>
--- a/GuessTheWordDataBinding/app/src/main/res/layout/main_activity.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/layout/main_activity.xml
@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <fragment
+        android:id="@+id/nav_host_fragment"
+        android:name="androidx.navigation.fragment.NavHostFragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:defaultNavHost="true"
+        app:navGraph="@navigation/main_navigation" />
+</merge>
--- a/GuessTheWordDataBinding/app/src/main/res/layout/score_fragment.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/layout/score_fragment.xml
@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <data>
+        <variable
+            name="scoreViewModel"
+            type="com.example.android.guesstheword.screens.score.ScoreViewModel" />
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/score_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".screens.score.ScoreFragment">
+
+        <TextView
+            android:id="@+id/you_scored_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="32dp"
+            android:fontFamily="sans-serif"
+            android:text="@string/you_scored"
+            android:textColor="@color/black_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/score_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="packed" />
+
+        <TextView
+            android:id="@+id/score_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:layout_marginBottom="8dp"
+            android:fontFamily="sans-serif"
+            android:textColor="@color/black_text_color"
+            android:textSize="34sp"
+            android:textStyle="normal"
+            android:text="@{String.valueOf(scoreViewModel.score)}"
+            app:layout_constraintBottom_toTopOf="@+id/play_again_button"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/you_scored_text"
+            app:layout_constraintVertical_chainStyle="packed"
+            tools:text="40" />
+
+        <Button
+            android:id="@+id/play_again_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="32dp"
+            android:text="@string/play_again"
+            android:theme="@style/GoButton"
+            android:visibility="visible"
+            android:onClick="@{() -> scoreViewModel.onPlayAgain()}"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>
--- a/GuessTheWordDataBinding/app/src/main/res/layout/title_fragment.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/layout/title_fragment.xml
@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/title_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".screens.title.TitleFragment">
+
+        <TextView
+            android:id="@+id/get_ready_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:layout_marginBottom="8dp"
+            android:fontFamily="sans-serif"
+            android:text="@string/get_ready"
+            android:textColor="@color/black_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/title_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="packed" />
+
+        <TextView
+            android:id="@+id/title_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:fontFamily="sans-serif"
+            android:text="@string/title_text"
+            android:textColor="@color/black_text_color"
+            android:textSize="34sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/play_game_button"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/get_ready_text"
+            app:layout_constraintVertical_chainStyle="packed" />
+
+        <Button
+            android:id="@+id/play_game_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="32dp"
+            android:text="@string/play_button"
+            android:theme="@style/GoButton"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-anydpi-v26/ic_guess_it.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-anydpi-v26/ic_guess_it.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-anydpi-v26/ic_guess_it_round.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-anydpi-v26/ic_guess_it_round.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-hdpi/ic_guess_it.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-hdpi/ic_guess_it.png
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-hdpi/ic_guess_it_round.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-hdpi/ic_guess_it_round.png
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-mdpi/ic_guess_it.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-mdpi/ic_guess_it.png
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-mdpi/ic_guess_it_round.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-mdpi/ic_guess_it_round.png
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-xhdpi/ic_guess_it.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-xhdpi/ic_guess_it.png
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-xhdpi/ic_guess_it_round.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-xhdpi/ic_guess_it_round.png
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-xxhdpi/ic_guess_it.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-xxhdpi/ic_guess_it.png
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-xxhdpi/ic_guess_it_round.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-xxhdpi/ic_guess_it_round.png
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-xxxhdpi/ic_guess_it.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-xxxhdpi/ic_guess_it.png
--- a/GuessTheWordDataBinding/app/src/main/res/mipmap-xxxhdpi/ic_guess_it_round.png
+++ b/GuessTheWordDataBinding/app/src/main/res/mipmap-xxxhdpi/ic_guess_it_round.png
--- a/GuessTheWordDataBinding/app/src/main/res/navigation/main_navigation.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/navigation/main_navigation.xml
@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    app:startDestination="@id/title_destination">
+
+    <fragment
+        android:id="@+id/title_destination"
+        android:name="com.example.android.guesstheword.screens.title.TitleFragment"
+        android:label="title_fragment"
+        tools:layout="@layout/title_fragment">
+        <action
+            android:id="@+id/action_title_to_game"
+            app:destination="@id/game_destination"
+            app:enterAnim="@anim/slide_in_right"
+            app:exitAnim="@anim/slide_out_left"
+            app:launchSingleTop="true"
+            app:popEnterAnim="@anim/slide_in_right"
+            app:popExitAnim="@anim/slide_out_left" />
+    </fragment>
+    <fragment
+        android:id="@+id/game_destination"
+        android:name="com.example.android.guesstheword.screens.game.GameFragment"
+        android:label="game_fragment"
+        tools:layout="@layout/game_fragment">
+        <action
+            android:id="@+id/action_game_to_score"
+            app:destination="@id/score_destination"
+            app:enterAnim="@anim/slide_in_right"
+            app:exitAnim="@anim/slide_out_left"
+            app:launchSingleTop="true"
+            app:popEnterAnim="@anim/slide_in_right"
+            app:popExitAnim="@anim/slide_out_left"
+            app:popUpTo="@+id/title_destination" />
+    </fragment>
+    <fragment
+        android:id="@+id/score_destination"
+        android:name="com.example.android.guesstheword.screens.score.ScoreFragment"
+        android:label="score_fragment"
+        tools:layout="@layout/score_fragment">
+        <action
+            android:id="@+id/action_restart"
+            app:destination="@+id/game_destination"
+            app:enterAnim="@anim/slide_in_right"
+            app:exitAnim="@anim/slide_out_left"
+            app:popEnterAnim="@anim/slide_in_right"
+            app:popExitAnim="@anim/slide_out_left"
+            app:popUpTo="@+id/title_destination" />
+        <argument
+            android:name="score"
+            android:defaultValue="0"
+            app:argType="integer" />
+    </fragment>
+</navigation>
--- a/GuessTheWordDataBinding/app/src/main/res/values/colors.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/values/colors.xml
@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<resources>
+    <color name="colorPrimary">#6ab343</color>
+    <color name="colorPrimaryDark">#388310</color>
+    <color name="colorAccent">#D81B60</color>
+    <color name="ok_green_color">#6ab343</color>
+    <color name="selected_green_color">#388310</color>
+    <color name="skip_red_color">#f44336</color>
+    <color name="selected_red_color">#ba000d</color>
+    <color name="black_text_color">#de000000</color>
+    <color name="grey_text_color">#99000000</color>
+    <color name="grey_button_color">#606060</color>
+    <color name="white_text_color">#ffffff</color>
+</resources>
--- a/GuessTheWordDataBinding/app/src/main/res/values/strings.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/values/strings.xml
@ -0,0 +1,30 @@
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<resources>
+    <string name="app_name">Guess the Word</string>
+    <string name="skip">Skip</string>
+    <string name="play_again">Play Again</string>
+    <string name="you_scored">You Scored</string>
+    <string name="title_text">guess the word!</string>
+    <string name="play_button">Play</string>
+    <string name="get_ready">Get ready to</string>
+    <string name="got_it">Got it</string>
+    <string name="end_game">End game</string>
+    <string name="word_is">The word is…</string>
+    <string name="quote_format">\"%s\"</string>
+    <string name="score_format">Current Score: %d</string>
+</resources>
--- a/GuessTheWordDataBinding/app/src/main/res/values/styles.xml
+++ b/GuessTheWordDataBinding/app/src/main/res/values/styles.xml
@ -0,0 +1,41 @@
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+    <!-- Button Styles -->
+    <style name="GoButton" parent="Widget.AppCompat.Button.Colored">
+        <item name="colorButtonNormal">@color/ok_green_color</item>
+        <item name="colorControlHighlight">@color/selected_green_color</item>
+        <item name="android:textColor">@color/white_text_color</item>
+        <item name="colorAccent">@color/selected_green_color</item>
+    </style>
+
+    <style name="SkipButton" parent="Widget.AppCompat.Button.Colored">
+        <item name="android:buttonStyle">@style/Widget.AppCompat.Button.Borderless.Colored</item>
+        <item name="android:textColor">@color/grey_button_color</item>
+        <item name="colorControlHighlight">@color/skip_red_color</item>
+    </style>
+
+</resources>
--- a/GuessTheWordDataBinding/app/src/test/java/com/example/android/guesstheword/ExampleUnitTest.kt
+++ b/GuessTheWordDataBinding/app/src/test/java/com/example/android/guesstheword/ExampleUnitTest.kt
@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}
--- a/GuessTheWordDataBinding/build.gradle
+++ b/GuessTheWordDataBinding/build.gradle
@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    ext.kotlin_version = '1.3.30'
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.4.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "android.arch.navigation:navigation-safe-args-gradle-plugin:1.0.0"
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
--- a/GuessTheWordDataBinding/gradle.properties
+++ b/GuessTheWordDataBinding/gradle.properties
@ -0,0 +1,23 @@
+#
+# Copyright (C) 2019 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+android.databinding.enableV2=true
+android.useAndroidX=true
+android.enableJetifier=true
--- a/GuessTheWordDataBinding/gradle/wrapper/gradle-wrapper.jar
+++ b/GuessTheWordDataBinding/gradle/wrapper/gradle-wrapper.jar
--- a/GuessTheWordDataBinding/gradle/wrapper/gradle-wrapper.properties
+++ b/GuessTheWordDataBinding/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+#Thu Apr 25 11:40:45 PDT 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
--- a/GuessTheWordDataBinding/gradlew
+++ b/GuessTheWordDataBinding/gradlew
@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
--- a/GuessTheWordDataBinding/gradlew.bat
+++ b/GuessTheWordDataBinding/gradlew.bat
@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/GuessTheWordDataBinding/settings.gradle
+++ b/GuessTheWordDataBinding/settings.gradle
@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+include ':app'
--- a/GuessTheWordLiveData/README.md
+++ b/GuessTheWordLiveData/README.md
@ -0,0 +1,45 @@
+LiveData - Solution Code
+==================================
+
+This is solution code for Use as starter code for the LiveData codelab.
+
+Introduction
+------------
+
+This starter app is a two player game, GuessTheWord. It is a word guessing app you can play with one or more friends. To play, hold the device in landscape, facing away from you with your thumbs on the **Skip** and **Got It** buttons. Your friends can then give you clues to help you guess the word. If you get the word right, press **Got It**. If you're stuck, press **Skip** or you can use the **End** button to end the game.
+This code demostrates the Android Architecture components, LiveData and LiveData observer pattern.
+
+Pre-requisites
+--------------
+
+You need to know:
+- How to open, build, and run Android apps with Android Studio.
+- How to use the Navigation Architecture Component
+- Passing the data between navigation destinations.
+- Read the logs using the Logcat.
+
+
+Getting Started
+---------------
+
+1. Download and run the app.
+
+License
+-------
+
+Copyright 2019 Google, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
--- a/GuessTheWordLiveData/app/.gitignore
+++ b/GuessTheWordLiveData/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/GuessTheWordLiveData/app/build.gradle
+++ b/GuessTheWordLiveData/app/build.gradle
@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: "androidx.navigation.safeargs"
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "com.example.android.guesstheword"
+        minSdkVersion 19
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    dataBinding {
+        enabled = true
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    testImplementation 'junit:junit:4.12'
+
+    // KTX
+    implementation 'androidx.core:core-ktx:1.0.1'
+
+    // Navigation
+    implementation "android.arch.navigation:navigation-fragment-ktx:1.0.0"
+    implementation "android.arch.navigation:navigation-ui-ktx:1.0.0"
+
+    //ViewModel and LiveData
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
+}
--- a/GuessTheWordLiveData/app/proguard-rules.pro
+++ b/GuessTheWordLiveData/app/proguard-rules.pro
@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/GuessTheWordLiveData/app/src/androidTest/java/com/example/android/guesstheword/ExampleInstrumentedTest.kt
+++ b/GuessTheWordLiveData/app/src/androidTest/java/com/example/android/guesstheword/ExampleInstrumentedTest.kt
@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword
+
+import androidx.test.InstrumentationRegistry
+import androidx.test.runner.AndroidJUnit4
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getTargetContext()
+        assertEquals("com.example.android.guesstheword", appContext.packageName)
+    }
+}
--- a/GuessTheWordLiveData/app/src/main/AndroidManifest.xml
+++ b/GuessTheWordLiveData/app/src/main/AndroidManifest.xml
@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.android.guesstheword">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_guess_it"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_guess_it_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme"
+        tools:ignore="GoogleAppIndexingWarning">
+
+        <!-- Screen locked to landscape for easier play -->
+        <!-- configChanges attribute makes the following actions NOT cause a config change  -->
+        <!-- screenOrientation attribute sets the default animation-->
+        <activity android:name=".MainActivity">
+
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/GuessTheWordLiveData/app/src/main/ic_guess_it-web.png
+++ b/GuessTheWordLiveData/app/src/main/ic_guess_it-web.png
--- a/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/MainActivity.kt
+++ b/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/MainActivity.kt
@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+
+/**
+ * Creates an Activity that hosts all of the fragments in the app
+ */
+class MainActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.main_activity)
+    }
+
+}
--- a/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/game/GameFragment.kt
+++ b/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/game/GameFragment.kt
@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.game
+
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Toast
+import androidx.databinding.DataBindingUtil
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
+import androidx.navigation.fragment.NavHostFragment.findNavController
+import com.example.android.guesstheword.R
+import com.example.android.guesstheword.databinding.GameFragmentBinding
+
+/**
+ * Fragment where the game is played
+ */
+class GameFragment : Fragment() {
+
+    private lateinit var binding: GameFragmentBinding
+
+    private lateinit var viewModel: GameViewModel
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
+                              savedInstanceState: Bundle?): View? {
+
+        // Inflate view and obtain an instance of the binding class
+        binding = DataBindingUtil.inflate(
+                inflater,
+                R.layout.game_fragment,
+                container,
+                false
+        )
+        Log.i("GameFragment", "Called ViewModelProviders.of")
+
+        viewModel = ViewModelProviders.of(this).get(GameViewModel::class.java)
+
+        /** Setting up LiveData observation relationship **/
+        viewModel.word.observe(this, Observer { newWord ->
+            binding.wordText.text = newWord
+        })
+
+        viewModel.score.observe(this, Observer { newScore ->
+            binding.scoreText.text = newScore.toString()
+
+        })
+
+        // Observer for the Game finished event
+        viewModel.eventGameFinish.observe(this, Observer<Boolean> { hasFinished ->
+            if (hasFinished) gameFinished()
+        })
+
+        binding.correctButton.setOnClickListener { onCorrect() }
+        binding.skipButton.setOnClickListener { onSkip() }
+        binding.endGameButton.setOnClickListener { onEndGame() }
+        return binding.root
+    }
+
+
+    /** Methods for buttons presses **/
+
+    private fun onSkip() {
+        viewModel.onSkip()
+    }
+    private fun onCorrect() {
+        viewModel.onCorrect()
+    }
+    private fun onEndGame() {
+        gameFinished()
+    }
+
+    private fun gameFinished() {
+        Toast.makeText(activity, "Game has just finished", Toast.LENGTH_SHORT).show()
+        val action = GameFragmentDirections.actionGameToScore()
+        action.score = viewModel.score.value?:0
+        findNavController(this).navigate(action)
+        viewModel.onGameFinishComplete()
+    }
+}
--- a/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/game/GameViewModel.kt
+++ b/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/game/GameViewModel.kt
@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.game
+
+import android.util.Log
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+
+class GameViewModel : ViewModel() {
+
+    // The current _word
+    private val _word = MutableLiveData<String>()
+
+    // The current score
+    private val _score = MutableLiveData<Int>()
+    val score: LiveData<Int>
+        get() = _score
+
+    val word: LiveData<String>
+        get() = _word
+
+
+
+    private val _eventGameFinish = MutableLiveData<Boolean>()
+    val eventGameFinish: LiveData<Boolean>
+        get() = _eventGameFinish
+
+
+    // The list of words - the front of the list is the next _word to guess
+    private lateinit var wordList: MutableList<String>
+
+
+    /**
+     * Resets the list of words and randomizes the order
+     */
+    private fun resetList() {
+        wordList = mutableListOf(
+                "queen",
+                "hospital",
+                "basketball",
+                "cat",
+                "change",
+                "snail",
+                "soup",
+                "calendar",
+                "sad",
+                "desk",
+                "guitar",
+                "home",
+                "railway",
+                "zebra",
+                "jelly",
+                "car",
+                "crow",
+                "trade",
+                "bag",
+                "roll",
+                "bubble"
+        )
+        wordList.shuffle()
+    }
+
+    init {
+        _word.value = ""
+        _score.value = 0
+        Log.i("GameViewModel", "GameViewModel created!")
+        resetList()
+        nextWord()
+    }
+
+    /**
+     * Callback called when the ViewModel is destroyed
+     */
+    override fun onCleared() {
+        super.onCleared()
+        Log.i("GameViewModel", "GameViewModel destroyed!")
+    }
+
+    /** Methods for updating the UI **/
+    fun onSkip() {
+        if (!wordList.isEmpty()) {
+            _score.value = (_score.value)?.minus(1)
+        }
+        nextWord()
+    }
+    fun onCorrect() {
+        if (!wordList.isEmpty()) {
+            _score.value = (_score.value)?.plus(1)
+        }
+        nextWord()
+    }
+
+    /**
+     * Moves to the next _word in the list.
+     */
+    private fun nextWord() {
+        if (wordList.isEmpty()) {
+            onGameFinish()
+
+        } else {
+            //Select and remove a _word from the list
+            _word.value = wordList.removeAt(0)
+        }
+    }
+
+
+
+    /** Method for the game completed event **/
+
+    fun onGameFinish() {
+        _eventGameFinish.value = true
+    }
+
+    fun onGameFinishComplete() {
+        _eventGameFinish.value = false
+    }
+
+}
--- a/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreFragment.kt
+++ b/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreFragment.kt
@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.score
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.Observer
+import androidx.lifecycle.ViewModelProviders
+import androidx.navigation.fragment.findNavController
+import com.example.android.guesstheword.R
+import com.example.android.guesstheword.databinding.ScoreFragmentBinding
+
+/**
+ * Fragment where the final score is shown, after the game is over
+ */
+class ScoreFragment : Fragment() {
+
+    private lateinit var viewModel: ScoreViewModel
+    private lateinit var viewModelFactory: ScoreViewModelFactory
+
+    override fun onCreateView(
+            inflater: LayoutInflater,
+            container: ViewGroup?,
+            savedInstanceState: Bundle?
+    ): View? {
+
+        // Inflate view and obtain an instance of the binding class.
+        val binding: ScoreFragmentBinding = DataBindingUtil.inflate(
+                inflater,
+                R.layout.score_fragment,
+                container,
+                false
+        )
+
+
+        viewModelFactory = ScoreViewModelFactory(ScoreFragmentArgs.fromBundle(arguments!!).score)
+        viewModel = ViewModelProviders.of(this, viewModelFactory)
+                .get(ScoreViewModel::class.java)
+
+        // Add observer for score
+        viewModel.score.observe(this, Observer { newScore ->
+            binding.scoreText.text = newScore.toString()
+        })
+
+        binding.playAgainButton.setOnClickListener { viewModel.onPlayAgain() }
+
+        // Navigates back to game when button is pressed
+        viewModel.eventPlayAgain.observe(this, Observer { playAgain ->
+            if (playAgain) {
+                findNavController().navigate(ScoreFragmentDirections.actionRestart())
+                viewModel.onPlayAgainComplete()
+            }
+        })
+
+        return binding.root
+    }
+}
--- a/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreViewModel.kt
+++ b/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreViewModel.kt
@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.score
+
+import android.util.Log
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+
+class ScoreViewModel(finalScore: Int) : ViewModel() {
+
+    private val _score = MutableLiveData<Int>()
+    val score: LiveData<Int>
+        get() = _score
+
+    private val _eventPlayAgain = MutableLiveData<Boolean>()
+    val eventPlayAgain: LiveData<Boolean>
+        get() = _eventPlayAgain
+
+
+    init {
+        _score.value = finalScore
+    }
+
+    fun onPlayAgain() {
+        _eventPlayAgain.value = true
+    }
+
+    fun onPlayAgainComplete() {
+        _eventPlayAgain.value = false
+    }
+
+
+}
--- a/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreViewModelFactory.kt
+++ b/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/score/ScoreViewModelFactory.kt
@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.score
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+
+class ScoreViewModelFactory (private val finalScore: Int) : ViewModelProvider.Factory {
+
+    override fun <T : ViewModel?> create(modelClass: Class<T>): T {
+        if (modelClass.isAssignableFrom(ScoreViewModel::class.java)) {
+            return ScoreViewModel(finalScore) as T
+        }
+        throw IllegalArgumentException("Unknown ViewModel class")
+    }
+
+}
--- a/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/title/TitleFragment.kt
+++ b/GuessTheWordLiveData/app/src/main/java/com/example/android/guesstheword/screens/title/TitleFragment.kt
@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword.screens.title
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.databinding.DataBindingUtil
+import androidx.fragment.app.Fragment
+import androidx.navigation.fragment.findNavController
+import com.example.android.guesstheword.R
+import com.example.android.guesstheword.databinding.TitleFragmentBinding
+
+/**
+ * Fragment for the starting or title screen of the app
+ */
+class TitleFragment : Fragment() {
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,
+                              savedInstanceState: Bundle?): View {
+        // Inflate the layout for this fragment
+        val binding: TitleFragmentBinding = DataBindingUtil.inflate(
+                inflater, R.layout.title_fragment, container, false)
+
+        binding.playGameButton.setOnClickListener {
+            findNavController().navigate(TitleFragmentDirections.actionTitleToGame())
+        }
+        return binding.root
+    }
+}
--- a/GuessTheWordLiveData/app/src/main/res/anim/slide_in_right.xml
+++ b/GuessTheWordLiveData/app/src/main/res/anim/slide_in_right.xml
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <translate
+        android:duration="700"
+        android:fromXDelta="100%"
+        android:fromYDelta="0%"
+        android:toXDelta="0%"
+        android:toYDelta="0%" />
+</set>
--- a/GuessTheWordLiveData/app/src/main/res/anim/slide_out_left.xml
+++ b/GuessTheWordLiveData/app/src/main/res/anim/slide_out_left.xml
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<set xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <translate
+        android:duration="700"
+        android:fromXDelta="0%"
+        android:fromYDelta="0%"
+        android:toXDelta="-100%"
+        android:toYDelta="0%" />
+</set>
--- a/GuessTheWordLiveData/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/GuessTheWordLiveData/app/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,32 @@
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="742.029"
+    android:viewportHeight="742.029">
+    <group
+        android:translateX="115.014496"
+        android:translateY="115.014496">
+        <path
+            android:fillColor="#FFFFFF"
+            android:pathData="M0,0h513.3v513.3h-513.3z" />
+        <path
+            android:fillColor="#6AB343"
+            android:pathData="M339.3,122.5c-7.1,-11.2 -16.8,-20.5 -28.3,-27.2l15.1,-27.6c2.5,-4.5 0.8,-10.1 -3.6,-12.5l-0.1,-0.1c-4.5,-2.4 -10,-0.7 -12.5,3.7l-15.6,28.6c-12.6,-4.4 -25.8,-6.6 -39.1,-6.4c-13.8,0 -26.3,2.1 -37.4,6.3l-15.6,-28.5c-2.5,-4.5 -8.1,-6.1 -12.5,-3.7c-4.5,2.5 -6.1,8.1 -3.7,12.5l0,0l15.4,28c-2.7,1.8 -5.4,3.8 -7.9,5.9c-16.3,13.8 -27.2,30.1 -32.9,49.1l51.1,21.3c2.7,-10 8.3,-19 16,-26c7.7,-6.9 17.5,-10.4 29.3,-10.4c11.3,0 20.3,3.2 27.1,9.6c6.6,5.9 10.3,14.4 10.2,23.3c0.1,7.3 -2,14.4 -6,20.4c-4,5.9 -10.4,12.9 -19.3,20.9c-15.4,13.3 -26.1,25.2 -32,35.6S228,268 228,282.2v14.7c19.2,-7.2 38.6,-7.1 58.2,0v-7.1c0,-10.4 1.9,-19 5.6,-25.8c3.7,-6.8 10.6,-15 20.7,-24.4c13,-12.4 22.8,-24.1 29.3,-34.9c6.5,-10.8 9.8,-23.9 9.8,-39.3C351.7,150.2 347.4,135.3 339.3,122.5z" />
+    </group>
+</vector>
--- a/GuessTheWordLiveData/app/src/main/res/drawable/ic_launcher_foreground.xml
+++ b/GuessTheWordLiveData/app/src/main/res/drawable/ic_launcher_foreground.xml
@ -0,0 +1,54 @@
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="742.029"
+    android:viewportHeight="742.029">
+    <group
+        android:translateX="115.014496"
+        android:translateY="115.014496">
+        <path
+            android:fillColor="#6ab343"
+            android:pathData="M256.22,464c-23.07,0 -42.89,-8.29 -58.91,-24.64s-24.1,-36.25 -24.1,-59.27 8.12,-42.84 24.14,-58.86 35.83,-24.14 58.87,-24.14 42.95,8.11 59.27,24.1 24.63,35.85 24.63,58.9 -8.27,43 -24.59,59.32S279.26,464 256.22,464Z" />
+        <path
+            android:fillColor="#fff"
+            android:pathData="M256.22,303.09q32.23,0 55.07,22.38t22.83,54.62q0,32.25 -22.83,55.07T256.22,458Q224,458 201.6,435.16t-22.39,-55.07q0,-32.23 22.39,-54.62t54.62,-22.38m0,-12c-24.69,0 -45.92,8.71 -63.11,25.9s-25.9,38.41 -25.9,63.1 8.69,46 25.82,63.48S231.47,470 256.22,470s46.07,-8.87 63.55,-26.35 26.35,-38.87 26.35,-63.56 -8.89,-46 -26.43,-63.18 -38.84,-25.82 -63.47,-25.82Z" />
+        <path
+            android:fillColor="#f5f5f5"
+            android:pathData="M256.38,330.37q-20.9,0 -35.39,14.5t-14.5,35.38A49.13,49.13 0,0 0,221 415.93a47.66,47.66 0,0 0,35.39 14.79,50.5 50.5,0 0,0 50.46,-50.47 47.67,47.67 0,0 0,-14.79 -35.38A49.13,49.13 0,0 0,256.38 330.37Z" />
+        <path
+            android:fillColor="#00000000"
+            android:pathData="M256.64,373.29L256.64,346.43"
+            android:strokeWidth="10"
+            android:strokeColor="#6ab343"
+            android:strokeLineCap="round"
+            android:strokeLineJoin="round" />
+        <path
+            android:fillColor="#00000000"
+            android:pathData="M262.48,384.63L282.67,396.96"
+            android:strokeWidth="10"
+            android:strokeColor="#6ab343"
+            android:strokeLineCap="round"
+            android:strokeLineJoin="round" />
+        <path
+            android:fillColor="#f5f5f5"
+            android:pathData="M256.62,373.29a7.15,7.15 0,0 0,-7.21 7.21,7.11 7.11,0 0,0 2.1,5.16 6.91,6.91 0,0 0,5.11 2.14,7.31 7.31,0 0,0 7.3,-7.3 6.89,6.89 0,0 0,-2.14 -5.12A7.11,7.11 0,0 0,256.62 373.29Z"
+            android:strokeWidth="7"
+            android:strokeColor="#6ab343" />
+    </group>
+</vector>
--- a/GuessTheWordLiveData/app/src/main/res/layout/game_fragment.xml
+++ b/GuessTheWordLiveData/app/src/main/res/layout/game_fragment.xml
@ -0,0 +1,137 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/game_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".screens.game.GameFragment">
+
+        <TextView
+            android:id="@+id/word_is_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="16dp"
+            android:fontFamily="sans-serif"
+            android:text="@string/word_is"
+            android:textColor="@color/black_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/word_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="packed" />
+
+        <TextView
+            android:id="@+id/word_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:animateLayoutChanges="true"
+            android:fontFamily="sans-serif"
+            android:textAppearance="@style/TextAppearance.AppCompat.Headline"
+            android:textColor="@color/black_text_color"
+            android:textSize="34sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/score_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/word_is_text"
+            app:layout_constraintVertical_chainStyle="packed"
+            tools:text="&quot;Tuna&quot;" />
+
+        <TextView
+            android:id="@+id/timer_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:layout_marginBottom="8dp"
+            android:fontFamily="sans-serif"
+            android:textColor="@color/grey_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/score_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:text="0:00" />
+
+        <TextView
+            android:id="@+id/score_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:fontFamily="sans-serif"
+            android:textColor="@color/grey_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/guideline"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            tools:text="Score: 2" />
+
+        <Button
+            android:id="@+id/skip_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="16dp"
+            android:text="@string/skip"
+            android:theme="@style/SkipButton"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintHorizontal_chainStyle="spread_inside"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/guideline" />
+
+        <androidx.constraintlayout.widget.Guideline
+            android:id="@+id/guideline"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            app:layout_constraintGuide_end="96dp" />
+
+        <Button
+            android:id="@+id/correct_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
+            android:text="@string/got_it"
+            android:theme="@style/GoButton"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@+id/end_game_button"
+            app:layout_constraintStart_toEndOf="@+id/skip_button"
+            app:layout_constraintTop_toTopOf="@+id/guideline" />
+
+        <Button
+            android:id="@+id/end_game_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="16dp"
+            android:text="@string/end_game"
+            android:theme="@style/SkipButton"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/guideline" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>
--- a/GuessTheWordLiveData/app/src/main/res/layout/main_activity.xml
+++ b/GuessTheWordLiveData/app/src/main/res/layout/main_activity.xml
@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<merge xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <fragment
+        android:id="@+id/nav_host_fragment"
+        android:name="androidx.navigation.fragment.NavHostFragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:defaultNavHost="true"
+        app:navGraph="@navigation/main_navigation" />
+</merge>
--- a/GuessTheWordLiveData/app/src/main/res/layout/score_fragment.xml
+++ b/GuessTheWordLiveData/app/src/main/res/layout/score_fragment.xml
@ -0,0 +1,75 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/score_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".screens.score.ScoreFragment">
+
+        <TextView
+            android:id="@+id/you_scored_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="32dp"
+            android:fontFamily="sans-serif"
+            android:text="@string/you_scored"
+            android:textColor="@color/black_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/score_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="packed" />
+
+        <TextView
+            android:id="@+id/score_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:layout_marginBottom="8dp"
+            android:fontFamily="sans-serif"
+            android:textColor="@color/black_text_color"
+            android:textSize="34sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/play_again_button"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/you_scored_text"
+            app:layout_constraintVertical_chainStyle="packed"
+            tools:text="40" />
+
+        <Button
+            android:id="@+id/play_again_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="32dp"
+            android:text="@string/play_again"
+            android:theme="@style/GoButton"
+            android:visibility="visible"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>
--- a/GuessTheWordLiveData/app/src/main/res/layout/title_fragment.xml
+++ b/GuessTheWordLiveData/app/src/main/res/layout/title_fragment.xml
@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/title_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        tools:context=".screens.title.TitleFragment">
+
+        <TextView
+            android:id="@+id/get_ready_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:layout_marginBottom="8dp"
+            android:fontFamily="sans-serif"
+            android:text="@string/get_ready"
+            android:textColor="@color/black_text_color"
+            android:textSize="14sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/title_text"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:layout_constraintVertical_chainStyle="packed" />
+
+        <TextView
+            android:id="@+id/title_text"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:fontFamily="sans-serif"
+            android:text="@string/title_text"
+            android:textColor="@color/black_text_color"
+            android:textSize="34sp"
+            android:textStyle="normal"
+            app:layout_constraintBottom_toTopOf="@+id/play_game_button"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.5"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/get_ready_text"
+            app:layout_constraintVertical_chainStyle="packed" />
+
+        <Button
+            android:id="@+id/play_game_button"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="32dp"
+            android:text="@string/play_button"
+            android:theme="@style/GoButton"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-anydpi-v26/ic_guess_it.xml
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-anydpi-v26/ic_guess_it.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-anydpi-v26/ic_guess_it_round.xml
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-anydpi-v26/ic_guess_it_round.xml
@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-hdpi/ic_guess_it.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-hdpi/ic_guess_it.png
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-hdpi/ic_guess_it_round.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-hdpi/ic_guess_it_round.png
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-mdpi/ic_guess_it.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-mdpi/ic_guess_it.png
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-mdpi/ic_guess_it_round.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-mdpi/ic_guess_it_round.png
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-xhdpi/ic_guess_it.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-xhdpi/ic_guess_it.png
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-xhdpi/ic_guess_it_round.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-xhdpi/ic_guess_it_round.png
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-xxhdpi/ic_guess_it.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-xxhdpi/ic_guess_it.png
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-xxhdpi/ic_guess_it_round.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-xxhdpi/ic_guess_it_round.png
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-xxxhdpi/ic_guess_it.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-xxxhdpi/ic_guess_it.png
--- a/GuessTheWordLiveData/app/src/main/res/mipmap-xxxhdpi/ic_guess_it_round.png
+++ b/GuessTheWordLiveData/app/src/main/res/mipmap-xxxhdpi/ic_guess_it_round.png
--- a/GuessTheWordLiveData/app/src/main/res/navigation/main_navigation.xml
+++ b/GuessTheWordLiveData/app/src/main/res/navigation/main_navigation.xml
@ -0,0 +1,69 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    app:startDestination="@id/title_destination">
+
+    <fragment
+        android:id="@+id/title_destination"
+        android:name="com.example.android.guesstheword.screens.title.TitleFragment"
+        android:label="title_fragment"
+        tools:layout="@layout/title_fragment">
+        <action
+            android:id="@+id/action_title_to_game"
+            app:destination="@id/game_destination"
+            app:enterAnim="@anim/slide_in_right"
+            app:exitAnim="@anim/slide_out_left"
+            app:launchSingleTop="true"
+            app:popEnterAnim="@anim/slide_in_right"
+            app:popExitAnim="@anim/slide_out_left" />
+    </fragment>
+    <fragment
+        android:id="@+id/game_destination"
+        android:name="com.example.android.guesstheword.screens.game.GameFragment"
+        android:label="game_fragment"
+        tools:layout="@layout/game_fragment">
+        <action
+            android:id="@+id/action_game_to_score"
+            app:destination="@id/score_destination"
+            app:enterAnim="@anim/slide_in_right"
+            app:exitAnim="@anim/slide_out_left"
+            app:launchSingleTop="true"
+            app:popEnterAnim="@anim/slide_in_right"
+            app:popExitAnim="@anim/slide_out_left"
+            app:popUpTo="@+id/title_destination" />
+    </fragment>
+    <fragment
+        android:id="@+id/score_destination"
+        android:name="com.example.android.guesstheword.screens.score.ScoreFragment"
+        android:label="score_fragment"
+        tools:layout="@layout/score_fragment">
+        <action
+            android:id="@+id/action_restart"
+            app:destination="@+id/game_destination"
+            app:enterAnim="@anim/slide_in_right"
+            app:exitAnim="@anim/slide_out_left"
+            app:popEnterAnim="@anim/slide_in_right"
+            app:popExitAnim="@anim/slide_out_left"
+            app:popUpTo="@+id/title_destination" />
+        <argument
+            android:name="score"
+            android:defaultValue="0"
+            app:argType="integer" />
+    </fragment>
+</navigation>
--- a/GuessTheWordLiveData/app/src/main/res/values/colors.xml
+++ b/GuessTheWordLiveData/app/src/main/res/values/colors.xml
@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<resources>
+    <color name="colorPrimary">#6ab343</color>
+    <color name="colorPrimaryDark">#388310</color>
+    <color name="colorAccent">#D81B60</color>
+    <color name="ok_green_color">#6ab343</color>
+    <color name="selected_green_color">#388310</color>
+    <color name="skip_red_color">#f44336</color>
+    <color name="selected_red_color">#ba000d</color>
+    <color name="black_text_color">#de000000</color>
+    <color name="grey_text_color">#99000000</color>
+    <color name="grey_button_color">#606060</color>
+    <color name="white_text_color">#ffffff</color>
+</resources>
--- a/GuessTheWordLiveData/app/src/main/res/values/strings.xml
+++ b/GuessTheWordLiveData/app/src/main/res/values/strings.xml
@ -0,0 +1,28 @@
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<resources>
+    <string name="app_name">Guess the Word</string>
+    <string name="skip">Skip</string>
+    <string name="play_again">Play Again</string>
+    <string name="you_scored">You Scored</string>
+    <string name="title_text">guess the word!</string>
+    <string name="play_button">Play</string>
+    <string name="get_ready">Get ready to</string>
+    <string name="got_it">Got it</string>
+    <string name="end_game">End game</string>
+    <string name="word_is">The word is…</string>
+</resources>
--- a/GuessTheWordLiveData/app/src/main/res/values/styles.xml
+++ b/GuessTheWordLiveData/app/src/main/res/values/styles.xml
@ -0,0 +1,41 @@
+<!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+    <!-- Button Styles -->
+    <style name="GoButton" parent="Widget.AppCompat.Button.Colored">
+        <item name="colorButtonNormal">@color/ok_green_color</item>
+        <item name="colorControlHighlight">@color/selected_green_color</item>
+        <item name="android:textColor">@color/white_text_color</item>
+        <item name="colorAccent">@color/selected_green_color</item>
+    </style>
+
+    <style name="SkipButton" parent="Widget.AppCompat.Button.Colored">
+        <item name="android:buttonStyle">@style/Widget.AppCompat.Button.Borderless.Colored</item>
+        <item name="android:textColor">@color/grey_button_color</item>
+        <item name="colorControlHighlight">@color/skip_red_color</item>
+    </style>
+
+</resources>
--- a/GuessTheWordLiveData/app/src/test/java/com/example/android/guesstheword/ExampleUnitTest.kt
+++ b/GuessTheWordLiveData/app/src/test/java/com/example/android/guesstheword/ExampleUnitTest.kt
@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword
+
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}
--- a/GuessTheWordLiveData/build.gradle
+++ b/GuessTheWordLiveData/build.gradle
@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    ext.kotlin_version = '1.3.30'
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.4.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "android.arch.navigation:navigation-safe-args-gradle-plugin:1.0.0"
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
--- a/GuessTheWordLiveData/gradle.properties
+++ b/GuessTheWordLiveData/gradle.properties
@ -0,0 +1,23 @@
+#
+# Copyright (C) 2019 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+android.databinding.enableV2=true
+android.useAndroidX=true
+android.enableJetifier=true
--- a/GuessTheWordLiveData/gradle/wrapper/gradle-wrapper.jar
+++ b/GuessTheWordLiveData/gradle/wrapper/gradle-wrapper.jar
--- a/GuessTheWordLiveData/gradle/wrapper/gradle-wrapper.properties
+++ b/GuessTheWordLiveData/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,6 @@
+#Thu Apr 25 11:45:20 PDT 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip
--- a/GuessTheWordLiveData/gradlew
+++ b/GuessTheWordLiveData/gradlew
@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
--- a/GuessTheWordLiveData/gradlew.bat
+++ b/GuessTheWordLiveData/gradlew.bat
@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/GuessTheWordLiveData/settings.gradle
+++ b/GuessTheWordLiveData/settings.gradle
@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+include ':app'
--- a/GuessTheWordTransformation/README.md
+++ b/GuessTheWordTransformation/README.md
@ -0,0 +1,45 @@
+LiveData - Solution Code
+==================================
+
+Use as starter code for the LiveData and ViewModel codelab.
+
+Introduction
+------------
+
+This starter app is a two player game, GuessTheWord. It is a word guessing app you can play with one or more friends. To play, hold the device in landscape, facing away from you with your thumbs on the **Skip** and **Got It** buttons. Your friends can then give you clues to help you guess the word. If you get the word right, press **Got It**. If you're stuck, press **Skip** or you can use the **End** button to end the game.
+This code demostrates the Android Architecture components, LiveData and LiveData observer pattern.
+
+Pre-requisites
+--------------
+
+You need to know:
+- How to open, build, and run Android apps with Android Studio.
+- How to use the Navigation Architecture Component
+- Passing the data between navigation destinations.
+- Read the logs using the Logcat.
+
+
+Getting Started
+---------------
+
+1. Download and run the app.
+
+License
+-------
+
+Copyright 2019 Google, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
--- a/GuessTheWordTransformation/app/.gitignore
+++ b/GuessTheWordTransformation/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/GuessTheWordTransformation/app/build.gradle
+++ b/GuessTheWordTransformation/app/build.gradle
@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-kapt'
+apply plugin: 'kotlin-android-extensions'
+apply plugin: "androidx.navigation.safeargs"
+
+android {
+    compileSdkVersion 28
+    defaultConfig {
+        applicationId "com.example.android.guesstheword"
+        minSdkVersion 19
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    dataBinding {
+        enabled = true
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    testImplementation 'junit:junit:4.12'
+
+    // KTX
+    implementation 'androidx.core:core-ktx:1.0.1'
+
+    // Navigation
+    implementation "android.arch.navigation:navigation-fragment-ktx:1.0.0"
+    implementation "android.arch.navigation:navigation-ui-ktx:1.0.0"
+
+    //ViewModel and LiveData
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0'
+}
--- a/GuessTheWordTransformation/app/proguard-rules.pro
+++ b/GuessTheWordTransformation/app/proguard-rules.pro
@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/GuessTheWordTransformation/app/src/androidTest/java/com/example/android/guesstheword/ExampleInstrumentedTest.kt
+++ b/GuessTheWordTransformation/app/src/androidTest/java/com/example/android/guesstheword/ExampleInstrumentedTest.kt
@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword
+
+import androidx.test.InstrumentationRegistry
+import androidx.test.runner.AndroidJUnit4
+import org.junit.Assert.assertEquals
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getTargetContext()
+        assertEquals("com.example.android.guesstheword", appContext.packageName)
+    }
+}
--- a/GuessTheWordTransformation/app/src/main/AndroidManifest.xml
+++ b/GuessTheWordTransformation/app/src/main/AndroidManifest.xml
@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright (C) 2019 Google Inc.
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.android.guesstheword">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_guess_it"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_guess_it_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme"
+        tools:ignore="GoogleAppIndexingWarning">
+
+        <!-- Screen locked to landscape for easier play -->
+        <!-- configChanges attribute makes the following actions NOT cause a config change  -->
+        <!-- screenOrientation attribute sets the default animation-->
+        <activity android:name=".MainActivity">
+
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/GuessTheWordTransformation/app/src/main/ic_guess_it-web.png
+++ b/GuessTheWordTransformation/app/src/main/ic_guess_it-web.png
--- a/GuessTheWordTransformation/app/src/main/java/com/example/android/guesstheword/MainActivity.kt
+++ b/GuessTheWordTransformation/app/src/main/java/com/example/android/guesstheword/MainActivity.kt
@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.guesstheword
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+
+/**
+ * Creates an Activity that hosts all of the fragments in the app
+ */
+class MainActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.main_activity)
+    }
+
+}
--- a/Show More
+++ b/Show More