我使用invalidate暂停了计时器但没有得到如何再次启动计时器以加载NSTimer不恒定的多个视图，它因所有视图而异，特别是当用户可以点击停顿时任何视图，一旦用户再次点击暂停以恢复音频文件，程序应该从该点开始加载视图。
-(void)playpauseAction:(id)sender
{
if
([audioPlayer isPlaying]){
[sender setImage:[UIImage imageNamed:@"play.png"] forState:UIControlStateSelected];
[audioPlayer pause];
[timer invalidate];
} else {
[sender setImage:[UIImage imageNamed:@"pause.png"] forState:UIControlStateNormal];
[audioPlayer play];
self.timer = [NSTimer scheduledTimerWithTimeInterval:11 target:self selector:@selector(displayviewsAction:) userInfo:nil repeats:NO];
}
}
- (void)displayviewsAction:(id)sender
{
FirstViewController *viewController = [[FirstViewController alloc] init];
viewController.view.frame = CGRectMake(0, 0, 320, 480);
[self.view addSubview:viewController.view];
[self.view addSubview:toolbar];
self.timer = [NSTimer scheduledTimerWithTimeInterval:23 target:self selector:@selector(secondViewController) userInfo:nil repeats:NO];
[viewController release];
}
-(void)secondViewController {
SecondViewController *secondController = [[SecondViewController alloc] init];
secondController.view.frame = CGRectMake(0, 0, 320, 480);
[self.view addSubview:secondController.view];
[self.view addSubview:toolbar];
self.timer = [NSTimer scheduledTimerWithTimeInterval:27 target:self selector:@selector(ThirdviewController) userInfo:nil repeats:NO];
[secondController release];
}
任何人都可以帮忙解决这个问题。