getRoundedCorner
Returns the RoundedCornerCompat of the given position if there is one.
Return
the rounded corner of the given position. Returns null
if there is none or the rounded corner area is not inside the bounds of the window.
Parameters
position
the position of the rounded corner on the display. The value should be one of the following: POSITION_TOP_LEFT, POSITION_TOP_RIGHT, POSITION_BOTTOM_RIGHT, POSITION_BOTTOM_LEFT.