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How do I move the ball on a particular angle in the Android canvas?

How do I move the ball on a particular angle i开发者_如何转开发n the Android canvas?


You might look at this example. Was very helpful to me for moving (rotating in my case) a dial on a canvas.

http://mindtherobot.com/blog/272/android-custom-ui-making-a-vintage-thermometer/

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