自定义视图onDraw经常被调用

Question

I have a custom view which I override the onDraw method to draw bitmaps using the canvas.

I can't really post any code because its quite long and complicated.

I put a log in the onDraw method, and I see that it never stopped being called.

My question is, what can trigger the onDraw method except calling invalidate on the view or its ancestors?

Answer 1

found the issue. I called getWidth() and getHeight() in the onDraw() method