Can a custom View know that onPause has been called?

Question

I have a custom View that runs a Thread operation which sits around making calls to the interwebs periodically. I would like to know if there\'s a way for me to not have to kil

Answer 1

if Build.VERSION.SDK_INT < Build.VERSION_CODES.N

@Override
protected void onVisibilityChanged(@NonNull View changedView, int visibility) {
    super.onVisibilityChanged(changedView, visibility);
    if (visibility == View.VISIBLE) //onResume called
    else // onPause() called
}

then Build.VERSION.SDK_INT >= Build.VERSION_CODES.N

@Override
public void onVisibilityAggregated(boolean isVisible) {
    super.onVisibilityAggregated(isVisible);
    if (isVisible) //onresume() called
    else // onPause() called
}

you can read source code of ProgressBar to get idea.