Question

ios同一个父控件把两个子控件交换位置用哪个方法呀

Answer 1

不知道你要问的是不是这些方法：
- (void)insertSubview:(UIView *)view atIndex:(NSInteger)index;

- (void)exchangeSubviewAtIndex:(NSInteger)index1 withSubviewAtIndex:(NSInteger)index2;

- (void)insertSubview:(UIView *)view belowSubview:(UIView *)siblingSubview;

- (void)insertSubview:(UIView *)view aboveSubview:(UIView *)siblingSubview;