set Source Rect Hint
Sets the source bounds hint. These bounds are only used when an activity first enters picture-in-picture, and describe the bounds in window coordinates of activity entering picture-in-picture that will be visible following the transition. For the best effect, these bounds should also match the aspect ratio in the arguments.
Return
this builder instance.
Parameters
launch Bounds
window-coordinate bounds indicating the area of the activity that will still be visible following the transition into picture-in-picture (eg. the video view bounds in a video player)