为 UIButton 添加长按事件

 　UIButton *aBtn=[UIButtonbuttonWithType:UIButtonTypeCustom];

    [aBtn setFrame:CGRectMake(40, 100, 60, 60)];

    [aBtn setBackgroundImage:[UIImageimageNamed:@"111.png"] forState:UIControlStateNormal];

    //button点击事件

    [aBtn addTarget:selfaction:@selector(btnShort:) forControlEvents:UIControlEventTouchUpInside];

    //button长按事件

    UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizeralloc] initWithTarget:selfaction:@selector(btnLong:)];

    longPress.minimumPressDuration = 0.8; //定义按的时间

    [aBtn addGestureRecognizer:longPress];

 

-(void)btnLong:(UILongPressGestureRecognizer *)gestureRecognizer{

        if ([gestureRecognizer state] == UIGestureRecognizerStateBegan) {

            NSLog(@"长按事件");

            UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"消息" message:@"确定删除该模式吗？" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"删除", nil];

            [alert show];

        }