TrackMySleepQuality with RecyclerView - Solution Code for 7.2
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Solution code for Android Kotlin Fundamentals Codelab 7.2 DiffUtil and data binding with RecyclerView

Introduction
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TrackMySleepQuality is an app for recording sleep data for each night.
You can record a start and stop time, assign a quality rating, and clear the database.

Learn techniques that make RecyclerView more efficient for large lists.
You will also learn techniques to make your code easier to maintain and extend for complex
lists and grids in your Android Kotlin apps.


Pre-requisites
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You should be familiar with:

* Building a basic user interface (UI) using an activity, fragments, and views.
* Navigating between fragments, and using safeArgs to pass data between fragments.
* Using view models, view model factories, transformations, and LiveData and their observers.
* Creating a Room database, creating a DAO, and defining entities.
* Using coroutines for database tasks and other long-running tasks.
* How to implement a basic RecyclerView with an Adapter, ViewHolder, and item layout.



Getting Started
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1. Download and run the app.

License
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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.

