［整理］swift中UIEdgeInsetsInsetRect的效果：可以缩放矩形frame

let originRect = CGRectMake(0, 0, 200, 400)
let demoView = UIView(frame: originRect)
let shrinkedRect = UIEdgeInsetsInsetRect(originRect, UIEdgeInsetsMake(0, 30, 0, 100))
let expandedRect = UIEdgeInsetsInsetRect(originRect, UIEdgeInsetsMake(0, 0, 0, -300))

转载请注明：在路上 » ［整理］swift中UIEdgeInsetsInsetRect的效果：可以缩放矩形frame