How can you tell when a layout has been drawn?

Question

I have a custom view that draws a scrollable bitmap to the screen. In order to initialize it, i need to pass in the size in pixels of the parent layout object. But during th

Answer 1

To avoid deprecated code and warnings you can use:

view.getViewTreeObserver().addOnGlobalLayoutListener(
        new ViewTreeObserver.OnGlobalLayoutListener() {
            @SuppressWarnings("deprecation")
            @Override
            public void onGlobalLayout() {
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
                    view.getViewTreeObserver()
                            .removeOnGlobalLayoutListener(this);
                } else {
                    view.getViewTreeObserver()
                            .removeGlobalOnLayoutListener(this);
                }
                yourFunctionHere();
            }
        });