Defines a custom attribute for CustomFanController and a Switch Colors button to switch to alternate colors for the dial and text.
The challenge app improves CustomFanController by adding a Switch Colors button and a custom attribute. When the user runs the app, the dial is gray and the text is black. When the user taps Switch Colors, the dial changes to yellow and the text changes to red. Tap Switch Colors again, and the dial changes back to the normal colors of gray and black.
You need to know how to:
- Open, build, and run apps with Android Studio.
- Use the layout editor to create a user interface (UI).
- Edit a layout in XML.
- Use touch, text, and click listeners in your code.
- Download the code.
- Open the code in Android Studio.
- Run the app.
Copyright 2017 Google, Inc.
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http://www.apache.org/licenses/LICENSE-2.0
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