Lesson 3: Testing, Debugging, and Using Support Libraries (3.3: Using The Android Support Libraries)

Task 1. Set up your project to use support libraries

1.1 Verify that the Android Support Library is available

1.2 Set up the project and examine build.gradle

1.3 Add the layout and colors

1.4 Add behavior to MainActivity

Task 2. Implement button behavior

2.1 Add the changeButton() onClick handler

2.2 Implement the button action