目前我在导航控制器中使用QLPreviewController。 (pushViewController)
要隐藏导航栏,我使用UITapGestureRecognizer。 用户可以通过单次触摸(点击)显示/隐藏导航栏。 这在iOS5中运行良好
- (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]; }但是在发布的iOS 6版本中,水龙头现在完全被忽略了,所以我再也无法隐藏我的导航栏了。
我想隐藏导航栏的原因是什么?
如果您打开.numbers文档,导航栏会隐藏导航栏下的“工作表按钮”。
TY。
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.
最满意答案
从ios 6开始,QLPreviewController实际上是一个完全独立的应用程序(单独的过程和一切)
Apple使用XPC:
http://oleb.net/blog/2012/10/remote-view-controllers-in-ios-6/https://twitter.com/eldudi/statuses/253438028163457024
=>所以当你按下它时,你的整个应用程序会移动到bg,包括它的窗口和手势识别器
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
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