iphone - 当用户点击 iPhone 中的上方 View 时隐藏 UIActionSheet

Question

我想在操作表上设置操作，这样当用户点击操作表上方时它会被取消。
我想这样做是因为我不想在操作表中添加取消按钮。用户可以通过点击休息区 View 来取消操作表，而不是取消按钮。
关于如何在 iPhone 中执行此操作的任何建议。
谢谢

Answer 1

// For detecting taps outside of the alert view
-(void)tapOut:(UIGestureRecognizer *)gestureRecognizer
{
    CGPoint p = [gestureRecognizer locationInView:self];
    if (p.y < 0)
    {   // They tapped outside
        [self dismissWithClickedButtonIndex:0 animated:YES];
    }
}

-(void) showFromTabBar:(UITabBar *)view
{
    [super showFromTabBar:view];

    // Capture taps outside the bounds of this alert view
    UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapOut:)];
    tap.cancelsTouchesInView = NO; // So that legit taps on the table bubble up to the tableview
    [self.superview addGestureRecognizer:tap];
    [tap release];
}

参见 here .

请注意，这已经发生在 iPad 上。