Exercise: Pollock
This next app gives you plenty of practice with event parameters. Better yet, it lets you and your users express some artistic freedom.
The end result is to create a drawing palette where the user will be able to create abstract art right on an Android phone. This app is loosely based on Autumn Rhythm, an abstract artwork by American artist Jackson Pollock (see Figure 4.8).
Figure 4.8 The Pollock app (after some artistic expression by the user).
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