我需要使用MPMoviePlayerController在UIViewcontroller中播放视频。因此,在播放视频之前,我需要在缓冲视频之前显示活动指示器视图。视频开始播放后,我需要删除活动指示器。视频开始播放后,我无法得知如何获得通知。关于此的任何建议都会有很大帮助。谢谢。
最佳答案
您可能正在寻找这样的东西:
- (void)viewDidAppear:(BOOL)animated {
NSLog(@"VIEW DID LOAD");
// Register to receive a notification that the movie is now in memory and ready to play
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(movieLoadStateDidChange:)
name:MPMoviePlayerLoadStateDidChangeNotification
object:nil];
}
-(void)movieLoadStateDidChange:(id)sender{
NSLog(@"STATE CHANGED");
if(MPMovieLoadStatePlaythroughOK ) {
NSLog(@"State is Playable OK");
NSLog(@"Enough data has been buffered for playback to continue uninterrupted..");
aiv.hidden = YES;
[aiv stopAnimating];
}
}
我还从此链接发现了这一点,它也可能对您有帮助:http://www.sdkboy.com/?p=48
关于iphone - 在视频开始使用MPMoviePlayerController播放之前如何使用事件指示器?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/10999019/