iPad / iOS7：“页面”模式视图控制器在显示“全屏”视图控制器后的奇怪行为

我的iPad应用程序打开带有“页面”演示风格的模态视图控制器.如您所知,“页面”演示文稿样式不包括呈现视图控制器以指示页面显示的状态栏.

从模态视图控制器,应用程序打开UIImagePickerController来制作照片. UIImagePickerController具有“全屏”演示风格.解雇图像选择器呈现模态视图控制器后变为20px更高并重叠初始视图控制器的状态栏.

我试图用简单的UINavigationController替换UIImagePickerController,它也破坏了我的模态视图控制器.

有屏幕截图：

他们只有恢复’Page’视图控制器大小的方法是在返回’Page’视图控制器后改变viewController.view.superview.superview.superview.superview框架的高度.但这真的很奇怪.

在解除嵌套模态视图控制器后,还有另一种修复“页面”模态视图控制器演示的方法吗？

更新：
我使用这些奇怪的代码来解决我的问题：

#define STATUS_BAR_HEIGHT 20
#define IPAD_PORTraiT_HEIGHT 1004
#define IPAD_LANDSCAPE_HEIGHT 748
UIView *superview = nil;

// In case of this view controller included in navigationController we have to use superview of navigation's controller view
if (self.navigationController)
    superview = self.navigationController.view.superview;
else
    superview = self.view.superview;

CGRect r = superview.frame;

// Sometimes we have to fix height + origin,sometimes only height (becase view has bottom magnifying)
// In landscape orientation we have to fix 'width' instead of 'height',because that view controller always works in 'porTrait' mode
if (self.interfaceOrientation == UIInterfaceOrientationPorTrait && r.size.height > IPAD_PORTraiT_HEIGHT) {
    r.origin.y = STATUS_BAR_HEIGHT;
    r.size.height = IPAD_PORTraiT_HEIGHT;
}
else if (self.interfaceOrientation == UIInterfaceOrientationMaskPorTraitUpsideDown && r.size.height > IPAD_PORTraiT_HEIGHT) {
    r.size.height = IPAD_PORTraiT_HEIGHT;
}
else if (self.interfaceOrientation == UIInterfaceOrientationLandscapeLeft && r.size.width > IPAD_LANDSCAPE_HEIGHT) {
    r.size.width = IPAD_LANDSCAPE_HEIGHT;
    r.origin.x = STATUS_BAR_HEIGHT;
}
else if (self.interfaceOrientation == UIInterfaceOrientationLandscapeRight && r.size.width > IPAD_LANDSCAPE_HEIGHT) {
    r.size.width = IPAD_LANDSCAPE_HEIGHT;
}

superview.frame = r;

我不相信没有更优雅的解决方案.任何想法如何改善它？

更新2：我刚刚开了一个bug.你可以在那里关注它：rdar://15949644

更新3：有我的示例项目：link