添加定时器的常用代码

 1 - (void)delayEnableTabButton
 2 {
 3     self.tabChannelButton.enabled = NO;
 4     [self appendTimer];
 5 }
 6 
 7 - (void)appendTimer
 8 {
 9     if (_resumeTimer == nil)
10     {
11         _resumeTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(enableTabChannelButton) userInfo:nil repeats:NO];
12     }
13 }
14 
15 - (void)enableTabChannelButton
16 {
17     self.tabChannelButton.enabled = YES;
18     [self removeTimer];
19 }
20 
21 - (void)removeTimer
22 {
23     if (_resumeTimer != nil)
24     {
25         [_resumeTimer invalidate];
26         _resumeTimer = nil;
27     }
28 }
29 
30 
31 - (void)dealloc
32 {
33     [self removeTimer];
34 }