如何知道 youtube 视频何时开始播放以及何时在 ios 的 web 视图中按下 mpmovieplayer 的完成按钮
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【中文标题】如何知道 youtube 视频何时开始播放以及何时在 ios 的 web 视图中按下 mpmovieplayer 的完成按钮【英文标题】：how to know when the youtube video starts playing and when the done button pressed of mpmovieplayer in a webview in ios 【发布时间】：2014-09-05 12:57:00 【问题描述】：我正在使用以下方法播放 youtube 的视频。当用户按下视频时，它会在默认的 ios mpmovieplayer 中播放视频。我需要知道视频何时开始播放以及何时按下 mpmovieplayer 完成按钮。任何形式的帮助将不胜感激。
particularVideo videoInfo = (particularVideo) responseObj;
self.videoTitleLabel.text = videoInfo.videoTitle;
//NSString *vidUrl = [videoInfo.videoURL stringByReplacingOccurrencesOfString:@" " withString:@"%20"];
CGSize scrSize = [[UIScreen mainScreen] bounds].size;//appDel.window.frame.size;
float imgSclToX = scrSize.width/16.0;
int imgWidth = (int) (scrSize.width -18);
int imgHeight = (int) ((float)(9.0)*imgSclToX);
// DebugLog(@"Yo-----> Window: %@ Width: %i Height: %i", NSStringFromCGSize(scrSize), imgWidth, imgHeight);
NSString *htmlStr = @"";
// htmlStr = [htmlStr stringByAppendingFormat:@"<iframe width=\"%i\" height=\"%i\" src=\"%@\" frameborder=\"0\" allowfullscreen></iframe>", imgWidth, imgHeight, vidUrl];
NSString *tStr = videoInfo.videoURL;
tStr = [tStr substringFromIndex:([tStr rangeOfString:@"v="].location+2)];
htmlStr = [NSString stringWithFormat:@"<iframe type=\"application/x-shockwave-flash\" width=\"%i\" height=\"%i\" src=\"https://www.youtube.com/embed/%@\" frameborder=\"0\" allowfullscreen></iframe>", imgWidth, imgHeight, tStr];
NSString *embedHTML = [NSString stringWithFormat:@"<html><head></head><body>%@<p><b>Artist:</b> %@<br><b>Composer:</b>%@<p>%@</p></body></html>", htmlStr, videoInfo.videoArtist, videoInfo.videoCompositor, videoInfo.videoDescription];
[self.myWebview loadHTMLString: embedHTML baseURL: nil];
【问题讨论】：
【参考方案1】：试试这个...我在我的项目中使用过这个..
它会告诉您已缓冲足够的数据以供不间断地继续播放。
-(void)movieLoadStateDidChange:(id)sender
if(MPMovieLoadStatePlaythroughOK )
NSLog(@"State is Playable OK");
NSLog(@"Enough data has been buffered for playback to continue uninterrupted..");
你需要使用 NSNotificationCenter
- (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];
self.movieplayer = [[MPMoviePlayerController alloc]initWithContentURL: [NSURL URLWithString:[self urlencode:self.strPlayUrl]]];
[[ self.movieplayer view] setFrame: CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height)];
[self.view addSubview: [ self.movieplayer view]];
[ self.movieplayer setShouldAutoplay:YES];
[ self.movieplayer prepareToPlay];
[ self.movieplayer play];
[self.view insertSubview:self. self.movieplayer.view belowSubview:self.indicator];
【讨论】：
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