Android Kotlin Fundamentals 03.2: Define navigation paths

10. Task: Add the navigation drawer
Step 4: Display the navigation drawer

AndroidTriviaFragment/app/build.gradle

@@ -59,4 +59,6 @@ dependencies {
 
     implementation"android.arch.navigation:navigation-fragment-ktx:$navigationVersion"
     implementation "android.arch.navigation:navigation-ui-ktx:$navigationVersion"
+
+    implementation "com.google.android.material:material:$supportlibVersion"
 }

AndroidTriviaFragment/app/src/main/java/com/example/android/navigation/MainActivity.kt

@@ -31,6 +31,7 @@ class MainActivity : AppCompatActivity() {
 
         val navController = this.findNavController(R.id.myNavHostFragment)
         NavigationUI.setupActionBarWithNavController(this, navController)
+        NavigationUI.setupWithNavController(binding.navView, navController)
     }
 
     override fun onSupportNavigateUp(): Boolean {

AndroidTriviaFragment/app/src/main/res/layout/activity_main.xml

@@ -16,6 +16,10 @@
 
 <layout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
+    <androidx.drawerlayout.widget.DrawerLayout
+        android:id="@+id/drawerLayout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -32,4 +36,13 @@
                 />
         </LinearLayout>
 
+        <com.google.android.material.navigation.NavigationView
+            android:id="@+id/navView"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:layout_gravity="start"
+            app:headerLayout="@layout/nav_header"
+            app:menu="@menu/navdrawer_menu" />
+</androidx.drawerlayout.widget.DrawerLayout>
+
 </layout>

AndroidTriviaFragment/app/src/main/res/menu/navdrawer_menu.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/rulesFragment"
+        android:icon="@drawable/rules"
+        android:title="@string/rules" />
+    <item
+        android:id="@+id/aboutFragment"
+        android:icon="@drawable/about_android_trivia"
+        android:title="@string/about" />
+</menu>

AndroidTriviaFragment/app/src/main/res/navigation/navigation.xml

@@ -57,4 +57,9 @@
         android:name="com.example.android.navigation.AboutFragment"
         android:label="fragment_about"
         tools:layout="@layout/fragment_about" />
+    <fragment
+        android:id="@+id/rulesFragment"
+        android:name="com.example.android.navigation.RulesFragment"
+        android:label="fragment_rules"
+        tools:layout="@layout/fragment_rules" />
 </navigation>