我的iPhone应用程序有一个有趣的小问题。我有一个带有桌子的视图,每个单元格在单击时播放全屏视频,然后当您按完时,视频停止并返回到表格视图。唯一的问题是,当您在视频加载的前2或3秒内完成按下时,当视图返回到表视图时,屏幕顶部的条形图将告知时间和电池强度等不再那里,它只是一个白色的空间。但是如果你在前几秒后按完了,那么当你回到表视图时,一切都绝对没问题!我完全不知道为什么会这样,我在互联网上找到的唯一一件事就是这个和我差不多完全一样的人:
http://www.iphonedevsdk.com/forum/iphone-sdk-development/53020-disappearing-status-bar.html
这导致我尝试使用:
[UIApplication sharedApplication].statusBarHidden = NO;
然而,这也没有任何意义。
点击视频时执行的代码:
NSString *path = [[NSBundle mainBundle] pathForResource:currentTitle ofType:@"m4v"];
NSURL *url = [NSURL fileURLWithPath:path];
movieController = [[MPMoviePlayerController alloc] initWithContentURL:url];
[movieController setControlStyle:MPMovieControlStyleFullscreen];
[movieController setFullscreen:YES];
movieController.view.frame = self.view.bounds;
[self.view addSubview:movieController.view];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackFinished:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
在视频完成或用户点击完成时执行的代码是:
NSLog(@"movieController moviePlayBackDidFinish");
[[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
[movieController setFullscreen:NO animated:NO];
[movieController.view removeFromSuperview];
[movieController release];
LiveEventsView *liveEventsView = [[LiveEventsView alloc] initWithNibName:@"LiveEventsView" bundle:nil];
UIView *currentView = self.view;
UIView *theWindow = [currentView superview];
UIView *newView = liveEventsView.view;
newView.frame = CGRectMake(0, 20, 320, 460);
[currentView removeFromSuperview];
[theWindow addSubview:newView];
[UIApplication sharedApplication].statusBarHidden = NO;
如果有人能够对这种情况有所了解,我将非常感激,因为它非常令人沮丧!
谢谢,
马特
答案 0 :(得分:6)
可能视频视图消失时的动画导致状态栏动画出现计时问题。
尝试延迟statusBarHidden = NO呼叫几秒钟。
NSInteger delay = 3;
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, delay * NSEC_PER_SEC), dispatch_get_current_queue(), ^{
[UIApplication sharedApplication].statusBarHidden = NO;
});
答案 1 :(得分:6)
您可以将延迟设置为浮点数。所以它会是
float delay = 0.1;
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, delay * NSEC_PER_SEC), dispatch_get_current_queue(), ^{
[UIApplication sharedApplication].statusBarHidden = NO;
[UIApplication sharedApplication].statusBarStyle = UIStatusBarStyleBlackOpaque;
});
我遇到了同样的问题,并通过修改richerd的代码解决了这个问题。 0.1秒是可以接受的。我还必须更改状态栏样式,因为它返回了BlackTranslucent栏样式,而原始样式是BlackOpaque样式。但现在工作正常。
答案 2 :(得分:3)
我发现使用给定的解决方案,内容通常会在状态栏下方消失。这种方法解决了这个问题。
注册MPMoviePlayerWillExitFullscreenNotification
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(moviePlayerWillExitFullscreen:)
name:MPMoviePlayerWillExitFullscreenNotification
object:self.moviePlayer];
然后重置状态栏可见性并从主窗口中删除并重新添加rootViewController,这将确保视图的边界再次正确。
- (void)moviePlayerWillExitFullscreen:(NSNotification *)notification {
[[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationSlide];
AppDelegate *appDelegate = [UIApplication sharedApplication].delegate;
id rootViewController = appDelegate.window.rootViewController;
appDelegate.window.rootViewController = nil;
appDelegate.window.rootViewController = rootViewController;
}