判断SuperView

1，判断SuperView

1 - (void)willMoveToSuperview:(UIView *)newSuperview
2 {
3     [super willMoveToSuperview:newSuperview];
4 
5     if (!newSuperview)
6         [self removeObservers];
7     else
8         [self addObservers];
9 }

2，判断Slider值改变之后在执行Event

 

_slider.continuous = NO;

 

 

 

 

posted @ 2015-12-01 11:12  欢欢0919  阅读(197)  评论(0)    收藏  举报