objective-c – 在外部抽头上关闭模态视图表单控制器

@cli_hlt，@Bill Brasky感谢您的回答。当点击发生在形式表格的模态视图之外时，我需要解除它。我正在粘贴我的代码。

-(void)gridView:(AQGridView *)gridView didSelectItemAtIndex:(NSUInteger)index  
{        
    if(adminMode) 
    {
        CHEditEmployeeViewController *editVC = [[CHEditEmployeeViewController alloc] initWithNibName:@"CHEditEmployeeViewController" bundle:nil];
        editVC.delegate = self;
        editVC.pickedEmployee = employee;
        editVC.edit = TRUE;
        editVC.delegate = self;
        UINavigationController *navigationController = [[UINavigationController alloc]initWithRootViewController:editVC];
        navigationController.modalPresentationStyle = UIModalPresentationFormSheet;
        [self presentModalViewController:navigationController animated:YES];

        return;
    }   //the above code is from the view controller which presents the modal     view. Please look at the below code too which is from my modal view controller. Please guide me in a proper way.   -(void)tapGestureRecognizer {

    UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTapBehind:)];
    [recognizer setNumberOfTapsRequired:1];
    recognizer.cancelsTouchesInView = NO; //So the user can still interact with controls in the modal view
    [self.view addGestureRecognizer:recognizer];

}

- (void)handleTapBehind:(UITapGestureRecognizer *)sender
{
    if (sender.state == UIGestureRecognizerStateEnded) 
    {
        CGPoint location = [sender locationInView:nil]; //Passing nil gives us coordinates in the window

    //Then we convert the tap's location into the local view's coordinate system,and test to see if it's in or outside. If outside,dismiss the view.

        if (![self.view pointInside:[self.view convertPoint:location fromView:self.view.window] withEvent:nil]) 
        {
            [self dismissModalViewControllerAnimated:YES];
            [self.view.window removeGestureRecognizer:sender];
        }

    }
}