Question

ios 父视图是button怎样获取

Answer 1

(UIButton *)self.superView (OC)
self.superView as! UIButton (Swift)

Answer 2

假定子视图是subView好了
UIButton *btn = (UIButton *)subView.superView;

Answer 3

uibutton * btn = (uibutton *)self.superview;

Answer 4

UIButton *superBtn = (UIButton *)subLabel.superview;

Answer 5

直接通过属性superView获取父视图，在强制转化为UIButton类型
UIButton *btn = (UIButton *)customView.superView;