目前我在导航控制器中使用 QLPreviewController.(pushViewController)
为了隐藏导航栏,我使用了 UITapGestureRecognizer.用户可以通过单击(点击)显示/隐藏导航栏.这在 iOS5 中运行良好
- (void)viewWillAppear:(BOOL)animated {[超级viewWillAppear:动画];UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)];[tapRecognizer setNumberOfTapsRequired:1];[tapRecognizer setDelegate:self];[[自拍] addGestureRecognizer:tapRecognizer];[tapRecognizer 发布];}- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {返回是;}- (void)tapped:(UIGestureRecognizer*)gestureRecognizer{//隐藏 -/- 显示导航栏[[self navigationController] setNavigationBarHidden:![[[self navigationController] navigationBar] isHidden] animated:YES];}
但是在 iOS 6 的发布版本中,现在完全忽略了点击,所以我不能再隐藏我的导航栏了.
为什么要隐藏导航栏?
如果您打开 .numbers 文档,导航栏会隐藏导航栏下方的工作表按钮".
泰.
从 ios 6 开始,QLPreviewController 实际上是一个完全独立的应用程序(独立的进程和一切)
Apple 为此使用 XPC:
https://twitter.com/eldudi/statuses/253438028163457024
=> 所以当你推送它时,你的整个应用都会移动到背景,包括它的窗口和手势识别器
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.
since ios 6 the QLPreviewController is actually a completely seperate app (seperate process and everything)
Apple uses XPC for that:
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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