IOS 关于取消延迟执行函数的种种。performSelector与cancelPreviousPerformRequestsWithTarget

@interface NSObject (NSDelayedPerforming) - (void)performSelector:(SEL)aSelector withObject:(id)anArgument afterDelay:(NSTimeInterval)delay inModes:(NSArray *)modes; - (void)performSelector:(SEL)aSel
相关文章
相关标签/搜索