Android: How to redraw a graphic element?

Question

I have created a class RoundIcon which extends View and the class contains setIconImage() method:

public void setIconImage(int imageFromResources) {
    icon         


        

Answer 1

Definitely call invalidate instead of refreshDrawableState(). You might want to check what thread your on and if on a background call postInvalidate().

Answer 2

Try calling View.invalidate() instead of View.refreshDrawableState()

Invalidate will tell the view that all of the pixels in the view need to be redrawn, if you are only updating a smaller area of the view look into the invalidate(Rect) overload for a performance boost.