Quicklook/QLPreviewController, some problems with iOS 8 but everything works with iOS 7.1

Question

I\'m working with QuickLook to view PDF Files.

It\'s working properly in iOS 7.1 but some problems happens with iOS 8 GM.

Pictures are better than words, I wanna

Answer 1

I've been recently able to fix the background issue bug (the animation is still choppy).

To fix the 'black background' issue I set a custom background color of navigation controller's view on push. When returning back to my view controller I make sure to restore the original background color to nil.

- (void)viewWillApear:(BOOL)animated {
   [super viewWillApear:animated];
   self.navigationController.view.backgroundColor = nil;

   // Optional - In order to ease the animation bug
   self.view.alpha = 1.0;
}


- (void)viewWillDissapear:(BOOL)animated {
   [super viewWillDissapear:animated];
   self.navigationController.view.backgroundColor = [UIColor whiteColor];

   // Optional - In order to ease the animation bug
   [UIView animateWithDuration:0.35 animations:^{
      self.view.alpha = 0.0;
   }];
}

This code should go to your view controller from which you're pushing QLPreviewController.

This solution is definitely a hack at it's best, but hope it helps!