在view上加UITapGestureRecognizer，按鈕不觸發單擊事件的處理方法

  UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleSingleTap:)];

    singleTap.delegate = self;

    [self.view addGestureRecognizer:singleTap];

    [singleTap release];

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch

{

    if ([touch.view isKindOfClass:[UIButton class]]) {

        return NO;

    }

    

    if ([touch.view isKindOfClass:[UITableViewCell class]]) {

        return NO;

    }

    if ([touch.view isKindOfClass:[UIScrollView class]]) {

        return YES;

    }

    return NO;

}

需要加UIGestureRecognizerDelegate這個協議