我有一个MPMoviePlayerViewController的问题:如果控制器无法在指定的URL找到电影,它会显示一个白色的屏幕,我不能让它靠近。
这就是我启动电影播放器的方式:
- (void) playVideo:(NSString*)path
{
NSURL* url = [NSURL URLWithString:path];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayBackDidFinish:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
double osversion = [[[UIDevice currentDevice] systemVersion] doubleValue];
if (osversion >= 3.2)
{
mplayerVC = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
if (mplayerVC)
{
mplayerVC.moviePlayer.movieSourceType = MPMovieSourceTypeFile;
[mplayerVC.moviePlayer play];
mplayerVC.moviePlayer.shouldAutoplay = TRUE;
[self presentMoviePlayerViewControllerAnimated:mplayerVC];
//[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayerLoadStateChanged:) name:MPMoviePlayerLoadStateDidChangeNotification object:nil];
}
}
}
这就是moviePlayBackDidFinish:方法的样子
- (void) moviePlayBackDidFinish:(NSNotification*)notification
{
[[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
NSError* error = [[notification userInfo] valueForKey:@"error"];
if (error != nil)
{
// Movie ended with an error
DLog(@"error=%@", error);
}
else
{
// Movie ended successfully
}
[self dismissMoviePlayerViewControllerAnimated];
SAFE_DEL(mplayerVC);
}
只有在URL指向错误时才会出现白屏
没关系,我想通了。
显然,你必须调用moviePlaybackDidFinish方法
[player stop];
在解雇控制器之前。
上面,播放器是这样获得的MPMoviePlayerController对象:
MPMoviePlayerController *player = [notification object];