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Magic8Ball Example

Goal:

• Display a Magic8Ball prediction on the screen. Show a different random prediction when the screen is clicked.
  See this Wikipedia article for the 20 Magic8 Ball predictions.

Directions:

• Create an Android project named Magic8Ball.

Modifications: Step 1.

• Modify layout to use a linear layout and display one of the Magic8Ball predictions, for example, "Ask again later.".
• Here is the resulting layout file:
      activity_main.xml
• Test the app.

Modifications: Step 2.

• Modify the app so that it
  
  • contains a Prediction class that returns a random Magic8Ball prediction,
• has a black background color,
• has an onClick event handler so that a new prediction is displayed when the linear layout is clicked.
• Here are the modified files:
      activity_main.xml   Prediction.java   MainActivity.java

Modifications: Step 3.

• Extract the color and string constants used in the layout file to the resource files colors.xml and strings.xml.
• Here are the modified files:
      activity_main.xml   MainActivity.java   strings.xml   colors.xml