iOS 6 UIGestures (Tap) stops working with QLPreviewController
ios5, ios6, ipad, objective-c, qlpreviewcontroller
Solution
since ios 6 the QLPreviewController is actually a completely seperate app (seperate process and everything)
Apple uses XPC for that:
- http://oleb.net/blog/2012/10/remote-view-controllers-in-ios-6/
https://twitter.com/eldudi/statuses/253438028163457024
=> so when you push that, your whole app moves to the bg, including its window and gesture recognizers
Problem
Currently I'm using a QLPreviewController in a navigation controller. (pushViewController) To hide the navigationbar I use a UITapGestureRecognizer. The user can show/hide the navigation bar by a single touch (tap). This worked well in iOS5 ``` - (void)viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)]; [tapRecognizer setNumberOfTapsRequired:1]; [tapRecognizer setDelegate:self]; [[self view] addGestureRecognizer:tapRecognizer]; [tapRecognizer release]; } - (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer { return YES; } - (void)tapped:(UIGestureRecognizer*)gestureRecognizer { //hide -/- show navigation bar [[self navigationController] setNavigationBarHidden:![[[self navigationController] navigationBar] isHidden] animated:YES]; } ``` But in the released version of iOS 6 the taps are now completely ignored, so I can't hide my navigation bar anymore. Reason why I want to hide the navigation bar? If you open a .numbers document, the navigationbar hides the 'sheet-buttons' under the navigation bar. Ty.