Question

我喜欢：

**//some methods of myButton inheried from UIButton**

-(void)timerFireMethod:(NSTimer*)theTimer
{
        UIAlertView *alert = [ [ UIAlertView alloc ] initWithTitle:@"hello" message:@"alerts" delegate:self cancelButtonTitle:@"cancel" otherButtonTitles:nil ];
        [alert show];
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
     timer = [NSTimer scheduledTimerWithTimeInterval:5 target:self selector:@selector(timerFireMethod:) userInfo:nil repeats:NO];
}

-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
     [timer invalidate];
}

1）我触摸但是直到显示uialertview，然后我去点击uialertview的取消按钮，但是uialertview没有关闭。

2）如果我将[timer invalidate];变为//[timer invalidate];

并按照我在上面的代码中所做的那样，uialertview可以关闭。

为什么？

Answer 1

您没有发布提醒视图。

    UIAlertView *alert = [ [ UIAlertView alloc ] initWithTitle:@"hello" message:@"alerts" delegate:self cancelButtonTitle:@"cancel" otherButtonTitles:nil ];
    [alert show];
    [alert release]; // <-- important

我无法关闭UIAlertView

1 个答案: