Do I need to call back super.onDraw() in a custom view?

Question

I\'m not too clear about this and neither are the docs.

When I\'m creating a custom view, I override like so:

@Override
public void onDraw(Canvas canvas)         


        

Answer 1

Yes, it is. If you custom a TextView, the super.onDraw will ensure to draw whatever belongs to TextView attributes (like the text, text color, text shadow, etc...) The same with other Views like Button, CheckBox...

In case your custom View extend View (not a specific subclass of View, just View), it is still better to leave super.onDraw(canvas) there for some View's draw methods (like setBackgroundDrawable, etc...)