Iphone 在Interface Builder中将Popover背景设置为黑色

我已经成功地在interface builder中连接了几个popover视图。我试图通过将视图背景颜色设置为黑色来将背景设置为黑色，但我仍然在popover本身上看到一个白色箭头，在4个圆角上看到白色瑕疵

请看截图

如何在interface builder中使背景完全为黑色

我很感激下面的答案，但我仍然无法让它发挥作用-以下是我的代码：

// Show the satellite Ephemeris
    if ( itemIndex == 1 ) {

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
            NSLog(@"This is an iPad - Creating popover!");
            EphemerisDataView *ephemView = [[EphemerisDataView alloc] init];
            UIPopoverController *popOver = [[UIPopoverController alloc] initWithContentViewController:ephemView];
            [popOver setPopoverBackgroundViewClass:[DDPopoverBackgroundView class]];
            [popOver.popoverBackgroundViewClass setTintColor:[UIColor blackColor]];
            CGSize size = CGSizeMake(320, 480); // size of view
            popOver.popoverContentSize = size;
            [popOver presentPopoverFromRect:self.popOverAnchor.bounds inView:self.view
                             permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

        }
        else {
            NSLog(@"This is not an iPad - Performing segue...");
            // Show the next view
            [self performSegueWithIdentifier:@"Ephemeris" sender:self];
        }
    }

---

您不能通过IB自定义该箭头。您需要一个完全自定义的popover。git上提供了很多。但如果要使用默认箭头，则无法自定义该箭头。

按如下方式操作：

        if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {

            NSLog(@"This is an iPad - Creating popover!");
            UIStoryboard *storyboard = [UIStoryboard storyboardWithName: @"MainStoryboard_iPad" bundle:[NSBundle mainBundle]];
            EphemerisDataView *ephemView = [storyboard instantiateViewControllerWithIdentifier:@"EphemerisDataView"];
            UIPopoverController *popOver = [[UIPopoverController alloc] initWithContentViewController:ephemView];
            self.customPopoverController = popOver;
            [popOver setPopoverBackgroundViewClass:[DDPopoverBackgroundView class]];
            [popOver.popoverBackgroundViewClass setTintColor:[UIColor blackColor]];
            popOver.delegate = self;
            CGSize size = CGSizeMake(320, 480); // size of view
            popOver.popoverContentSize = size;
            [popOver presentPopoverFromRect:self.popOverAnchor.bounds inView:self.popOverAnchor
                             permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

        }
        else {
            NSLog(@"This is not an iPad - Performing segue...");
            // Show the next view
            [self performSegueWithIdentifier:@"Ephemeris" sender:self];
        }

所以我找到了这个：。但是我可以在interface builder中使用它吗？我似乎不知道如何在interface builder中设置PopoOverBackgroundViewClass。