This is the repository that contains both the starter and finished app for the Taking Advantage of Kotlin codelab. The starter app is written in Java, which is then converted to Kotlin and extended.

MyAddressBook is an address book android application, that lists contacts containing a first name, last name, and email address. The contacts can be generated quickly from an included JSON file, or created manually in the app. It contains validation for the input fields, stores the data in SharedPreferences, and supports swipe to delete in the RecyclerView.

A basic knowledge of developing Android apps in Java, specifically:

• Displaying data in a RecyclerView.
• Using SharedPreferences to persist data.
• How to create JavaBean objects.
• Creating layouts using ConstraintLayout.
• Displaying an AlertDialog.
• Validating user input in an EditText.

1. Download the code.
2. Pick either the starter or finished directory and open the respective folder in Android Studio 3.0.
3. Run the app.

Copyright 2018 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.