The real difference between the frame and bounds properties of the iOS development question UIView

Have seen many of the internet for frame and the difference between bounds, most of them are stereotyped!

Most of the arguments are:

The frame reference coordinate system is its parent view,

is the reference coordinate system of the bounds itself?

Although it is generally correct, few people can say more concretely and thoroughly.

According to my research:

Frame: Refers to the top-left vertex of a child view in the parent view of the coordinates bounds: when it is itself as a parent view, the position of the upper-left corner of the child view in the coordinate system!bounds This property is the cornerstone of the implementation Uiscrollview, by changing  The bounds of the view can simulate similar scrolling effects, but it also requires more complex animations and other system optimizations!

Original Http://blog.csdn.net/yangbingbinga

The real difference between the frame and bounds properties of the iOS development question UIView