How to force black borders for UIPopoverControllers

ios, ipad, uipopovercontroller

Solution

It appears there’s no way to achieve this officially. I doubt it will pass the App Store review process, but this works for me on iOS 6:

[popoverController setValue:@3 forKey:@"_popoverBackgroundStyle"];

It’s a shame Apple didn’t just expose this publicly.

Problem

`UIPopoverController` instances can be restyled in iOS5 using the `UIPopoverBackgroundView` class. However this customisation technique cannot be applied to `UIActionSheets` (presented as popovers in iPad). I'd like my popovers to appear consistent so `UIPopoverBackgroundView` isn't an option for me. Poking through the iOS artwork (using extractor) I notice that alongside the `_UIPopoverViewBlue*` PNGs (presumably used to draw the default blue-ish `UIPopoverController` borders) is a `_UIPopoverViewBlack*` set of PNGs. How do I get `UIPopoverController` to use the black images instead of the blue ones?

Original source