Setting mode to percent is only part of the process, you then need to set the aspectRatio. Try taking width/height from the view and setting the ratio from those values.
If the width = 1600 and the height = 900, then the ratio 1600:900
Setting mode to percent is only part of the process, you then need to set the aspectRatio. Try taking width/height from the view and setting the ratio from those values.
If the width = 1600 and the height = 900, then the ratio 1600:900