android: onDraw is called constantly

Question

I have a problem with a custom button. onDraw() gets called again and again, and I can\'t figure out why.

public class CircleButton extends Button {

    static          


        

Answer 1

Change the drawableStateChanged() method:

1. Don't call invalidate
2. Call super.drawableStateChanged().

Answer 2

Sorry, dumb failure:

this.getDefaultBitmap() had a setBackgroundColor(0x00000000); call in it which retriggered the onDraw.

So kind of a recursion:

onDraw() -> getDefaultBitmap() -> setBackgroundColor() -> onDraw