Set Padding of TextView depending on Content height of TextView

Question

I currently have a textview with a paddingBottom of 20dp. I want to reduce this padding if the text within the textView is long enough to otherwise get cut off at the bottom.

Here's a diagram illustrating the behavior I want:

However, I'm not sure where to call setPadding(). Can someone recommend me an approach for getting this behavior of a dynamic bottom padding?

Answer 1

I ended up creating a custom Layout that contained my textView, and overrode its onMeasure() method. The custom layout was set with height='wrap_content'.

The system passes in the available height to this layout's onMeasure() method. So here, I measured my child textView's height with

textView.onMeasure() int preferredHeight = textView.getMeasuredHeight()

If its preferred height was larger than what my custom view had available to it (minus the bottom padding), I removed the bottom padding with setPadding(). Otherwise, I added the padding.