I want to add a floating close (x) button at the corner of an UIModalPresentationPageSheet View. The effect is like below:
UIModalPresentationPageSheet
See if this works:
myPresentedView.clipsToBounds = NO;
That will allow the button to draw itself beyond it's views. One drawback to this is that the touches will not land beyond the views bounds, so try not to set the button too far away.