第一步:引用MediaPlayer框架，聲明視圖控制器屬性PlayerController#import <mediaplayer mediaplayer.h>@property(nonatomic,strong)MPMoviePlayerController *playerController;

//第二步：獲取視頻路徑，創建播放器//本地視頻路徑NSString* localFilePath=[[NSBundle mainBundle]pathForResource:@"不能說的秘密" ofType:@"mp4"];NSURL *localVideoUrl = [NSURL fileURLWithPath:localFilePath];//網絡視頻路徑NSString *webVideoPath = @"http://api.junqingguanchashi.net/yunpan/bd/c.php?vid=/junqing/1115.mp4";NSURL *webVideoUrl = [NSURL URLWithString:webVideoPath];self.playerController =[[MPMoviePlayerController alloc]initWithContentURL:webVideoUrl];

//第三步：設置Frame將播放器View添加到視圖控制器View上self.playerController.view.frame = CGRectMake(0, 10, kDeviceWidth, 300);[self.view addSubview: self.playerController.view];

//第四步：設置播放器屬性//設置控制面板風格:無，嵌入，全屏，默認self.playerController.controlStyle = MPMovieControlStyleDefault;//設置是否自動播放(默認為YES）self.playerController.shouldAutoplay = NO;//設置播放器顯示模式，類似于圖片的處理，設置Fill有可能造成部分區域被裁剪self.playerController.scalingMode = MPMovieScalingModeAspectFit;//設置重復模式self.playerController.repeatMode = MPMovieRepeatModeOne;

//第五步：播放視頻//播放前的準備，會中斷當前正在活躍的音頻會話[ self.playerController prepareToPlay];//播放視頻，設置了自動播放之后可以不調用此方法//[ self.playerController play];

//第六步：在退出界面的時候，關閉播放器，移除通知- (void)dealloc{ //當前視圖控制器pop之后并不會關閉播放，需要手動關閉 [self.playerController stop]; self.playerController = nil; //移除播放器相關的通知 [[NSNotificationCenter defaultCenter] removeObserver:self];}

//關于通知的使用(還有很多通知可以監聽，可查看SDK)NSNotificationCenter *notificaionCenter = [NSNotificationCenter defaultCenter];//監聽播放器狀態的變化[notificaionCenter addObserver:self selector:@selector(playerStateChanged:) name:MPMoviePlayerPlaybackStateDidChangeNotification object:nil];//監聽播放完成[notificaionCenter addObserver:self selector:@selector(playerFinished) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];//監聽切換到全屏[notificaionCenter addObserver:self selector:@selector(palyerChangeFullScreen) name:MPMoviePlayerDidEnterFullscreenNotification object:nil];//監聽截屏操作完成[notificaionCenter addObserver:self selector:@selector(playerCaptureFinished:) name:MPMoviePlayerThumbnailImageRequestDidFinishNotification object:nil];

#pragma mark - 監聽通知的響應方法//播放狀態變化，注意播放完成時的狀態是暫停- (void)playerStateChanged:(NSNotification *)notificaion{ switch (self.playerController.playbackState) { case MPMoviePlaybackStateStopped:{ NSLog(@"播放停止"); break; } case MPMoviePlaybackStatePlaying:{ NSLog(@"播放器正在播放"); break; } case MPMoviePlaybackStatePaused:{ NSLog(@"播放器暫停"); break; } case MPMoviePlaybackStateInterrupted:{ NSLog(@"播放器中斷"); break; } case MPMoviePlaybackStateSeekingForward:{ NSLog(@"播放器快進"); break; } case MPMoviePlaybackStateSeekingBackward:{ NSLog(@"播放器快退"); break; } default: break; }}//視頻播放結束- (void)playerFinished{ NSLog(@"playerFinished：播放結束");}//播放器切換到了全屏- (void)palyerChangeFullScreen{ NSLog(@"palyerChangeFullScreen：播放器進入全屏");}//播放器截屏結束- (void)playerCaptureFinished:(NSNotification *)notification{ //獲取并顯示截圖 UIImage *image=notification.userInfo[MPMoviePlayerThumbnailImageKey]; self.captureImgView.image = image;}

//添加一個按鈕，點擊開始截屏_captureBtn = [[UIButton alloc] initWithFrame:CGRectMake(30, CGRectGetMaxY(self.playerController.view.frame) + 30, kDeviceWidth - 30 * 2, 50)];_captureBtn.backgroundColor = [UIColor purpleColor];[_captureBtn setTitle:@"截圖當前屏幕" forState: UIControlStateNormal];[_captureBtn addTarget:self action:@selector(captureCurrentScreenImg) forControlEvents:UIControlEventTouchUpInside];[self.view addSubview:_captureBtn];//添加一個ImgView 顯示截屏后的圖片_captureImgView = [[UIImageView alloc] initWithFrame:CGRectMake((kDeviceWidth - 150)/2, CGRectGetMaxY(_captureBtn.frame) + 20, 150, 150)]; _captureImgView.contentMode = UIViewContentModeScaleAspectFit;_captureImgView.backgroundColor = [UIColor grayColor];[self.view addSubview:_captureImgView];

//截取當前屏幕- (void)captureCurrentScreenImg{ [self.playerController requestThumbnailImagesAtTimes:@[@(self.playerController.currentPlaybackTime)] timeOption:MPMovieTimeOptionNearestKeyFrame];}

//監聽通知：播放器截屏結束，得到圖片并顯示截圖- (void)playerCaptureFinished:(NSNotification *)notification{ UIImage *image=notification.userInfo[MPMoviePlayerThumbnailImageKey]; self.captureImgView.image = image;}

//第一步:獲取視頻路徑//本地視頻NSString* localFilePath=[[NSBundle mainBundle]pathForResource:@"不能說的秘密" ofType:@"mp4"];NSURL *localVideoUrl = [NSURL fileURLWithPath:localFilePath];//在線視頻//NSString *webVideoPath = @"http://api.junqingguanchashi.net/yunpan/bd/c.php?vid=/junqing/1115.mp4";//NSURL *webVideoUrl = [NSURL URLWithString:webVideoPath];//第二步:創建視頻播放器MPMoviePlayerViewController *playerViewController = [[MPMoviePlayerViewController alloc] initWithContentURL:localVideoUrl];//第三步:設置播放器屬性//通過moviePlayer屬性設置播放器屬性(與MPMoviePlayerController類似)playerViewController.moviePlayer.scalingMode = MPMovieScalingModeFill;//第四步:跳轉視頻播放界面[self presentViewController:playerViewController animated:YES completion:nil];

//第一步:引用AVFoundation框架，添加播放器屬性#import <AVFoundation/AVFoundation.h>@property (nonatomic,strong)AVPlayer *player;//播放器對象@property (nonatomic,strong)AVPlayerItem *currentPlayerItem;

//第二步:獲取播放地址URL//本地視頻路徑NSString* localFilePath=[[NSBundle mainBundle]pathForResource:@"不能說的秘密" ofType:@"mp4"];NSURL *localVideoUrl = [NSURL fileURLWithPath:localFilePath];//網絡視頻路徑NSString *webVideoPath = @"http://api.junqingguanchashi.net/yunpan/bd/c.php?vid=/junqing/1129.mp4";NSURL *webVideoUrl = [NSURL URLWithString:webVideoPath];

//第三步:創建播放器(四種方法)//如果使用URL創建的方式會默認為AVPlayer創建一個AVPlayerItem//self.player = [AVPlayer playerWithURL:localVideoUrl];//self.player = [[AVPlayer alloc] initWithURL:localVideoUrl];//self.player = [AVPlayer playerWithPlayerItem:playerItem];AVPlayerItem *playerItem = [[AVPlayerItem alloc] initWithURL:webVideoUrl];self.currentPlayerItem = playerItem;self.player = [[AVPlayer alloc] initWithPlayerItem:playerItem];

//第四步:創建顯示視頻的AVPlayerLayer,設置視頻顯示屬性，并添加視頻圖層//contentView是一個普通View,用于放置視頻視圖/* AVLayerVideoGravityResizeAspectFill等比例鋪滿，寬或高有可能出屏幕 AVLayerVideoGravityResizeAspect 等比例 默認 AVLayerVideoGravityResize 完全適應寬高*/AVPlayerLayer *avLayer = [AVPlayerLayer playerLayerWithPlayer:self.player];avLayer.videoGravity = AVLayerVideoGravityResizeAspect;avLayer.frame = _containerView.bounds;[_containerView.layer addSublayer:avLayer];

//第六步：執行play方法，開始播放//本地視頻可以直接播放//網絡視頻需要監測AVPlayerItem的status屬性為AVPlayerStatusReadyToPlay時方法才會生效[self.player play];

//1.注冊觀察者，監測播放器屬性//觀察Status屬性，可以在加載成功之后得到視頻的長度[self.player.currentItem addObserver:self forKeyPath:@"status" options:NSKeyValueObservingOptionNew context:nil];//觀察loadedTimeRanges，可以獲取緩存進度，實現緩沖進度條[self.player.currentItem addObserver:self forKeyPath:@"loadedTimeRanges" options:NSKeyValueObservingOptionNew context:nil];

//2.添加屬性觀察- (void)observeValueForKeyPath:(NSString *)keyPath  ofObject:(id)object  change:(NSDictionary *)change  context:(void *)context { AVPlayerItem *playerItem = (AVPlayerItem *)object; if ([keyPath isEqualToString:@"status"]) { //獲取playerItem的status屬性最新的狀態 AVPlayerStatus status = [[change objectForKey:@"new"] intValue]; switch (status) { case AVPlayerStatusReadyToPlay:{ //獲取視頻長度 CMTime duration = playerItem.duration;  //更新顯示:視頻總時長(自定義方法顯示時間的格式) self.totalNeedPlayTimeLabel.text = [self formatTimeWithTimeInterVal:CMTimeGetSeconds(duration)]; //開啟滑塊的滑動功能 self.sliderView.enabled = YES; //關閉加載Loading提示 [self showaAtivityInDicatorView:NO]; //開始播放視頻 [self.player play]; break; } case AVPlayerStatusFailed:{//視頻加載失敗，點擊重新加載 [self showaAtivityInDicatorView:NO];//關閉Loading視圖 self.playerInfoButton.hidden = NO; //顯示錯誤提示按鈕，點擊后重新加載視頻 [self.playerInfoButton setTitle:@"資源加載失敗，點擊繼續嘗試加載" forState: UIControlStateNormal]; break; } case AVPlayerStatusUnknown:{ NSLog(@"加載遇到未知問題:AVPlayerStatusUnknown"); break; } default: break; } } else if ([keyPath isEqualToString:@"loadedTimeRanges"]) { //獲取視頻緩沖進度數組，這些緩沖的數組可能不是連續的 NSArray *loadedTimeRanges = playerItem.loadedTimeRanges; //獲取最新的緩沖區間 CMTimeRange timeRange = [loadedTimeRanges.firstObject CMTimeRangeValue]; //緩沖區間的開始的時間 NSTimeInterval loadStartSeconds = CMTimeGetSeconds(timeRange.start); //緩沖區間的時長 NSTimeInterval loadDurationSeconds = CMTimeGetSeconds(timeRange.duration); //當前視頻緩沖時間總長度 NSTimeInterval currentLoadTotalTime = loadStartSeconds + loadDurationSeconds; //NSLog(@"開始緩沖:%f,緩沖時長:%f,總時間:%f", loadStartSeconds, loadDurationSeconds, currentLoadTotalTime); //更新顯示：當前緩沖總時長 _currentLoadTimeLabel.text = [self formatTimeWithTimeInterVal:currentLoadTotalTime]; //更新顯示：視頻的總時長 _totalNeedLoadTimeLabel.text = [self formatTimeWithTimeInterVal:CMTimeGetSeconds(self.player.currentItem.duration)]; //更新顯示：緩沖進度條的值 _progressView.progress = currentLoadTotalTime/CMTimeGetSeconds(self.player.currentItem.duration); }}

//轉換時間格式的方法- (NSString *)formatTimeWithTimeInterVal:(NSTimeInterval)timeInterVal{ int minute = 0, hour = 0, secend = timeInterVal; minute = (secend % 3600)/60; hour = secend / 3600; secend = secend % 60; return [NSString stringWithFormat:@"%02d:%02d:%02d", hour, minute, secend];}

 typedef struct{ CMTimeValue value; // 幀數 CMTimeScale timescale; // 幀率（影片每秒有幾幀） CMTimeFlags flags; CMTimeEpoch epoch; } CMTi

//方法1：CMTimeMakeWithSeconds(Flout64 seconds, int32_t scale)//方法2：CMTimeMake(int64_t value, int32_t scale)//注：兩者的區別在于方法一的第一個參數可以是float

//視頻總時長，在AVPlayerItem狀態為AVPlayerStatusReadyToPlay時獲取CMTime duration = self.player.currentItem.duration;CGFloat totalTime = CMTimeGetSeconds(duration);//當前AVPlayer的播放時長CMTime cmTime = self.player.currentTime;CGFloat currentTime = CMTimeGetSeconds(cmTime);

__weak __typeof(self) weakSelf = self;[self.player addPeriodicTimeObserverForInterval:CMTimeMake(1, 1) queue:dispatch_get_main_queue() usingBlock:^(CMTime time) { //當前播放的時間 NSTimeInterval currentTime = CMTimeGetSeconds(time); //視頻的總時間 NSTimeInterval totalTime = CMTimeGetSeconds(weakSelf.player.currentItem.duration); //設置滑塊的當前進度 weakSelf.sliderView.value = currentTime/totalTime; //設置顯示的時間：以00:00:00的格式 weakSelf.currentTimeLabel.text = [weakSelf formatTimeWithTimeInterVal:currentTime]; }];

//UISlider的響應方法:拖動滑塊，改變播放進度- (IBAction)sliderViewChange:(id)sender { if(self.player.status == AVPlayerStatusReadyToPlay){ NSTimeInterval playTime = self.sliderView.value * CMTimeGetSeconds(self.player.currentItem.duration); CMTime seekTime = CMTimeMake(playTime, 1); [self.player seekToTime:seekTime completionHandler:^(BOOL finished) { }]; }}

//步驟1：獲取視頻路徑NSString *webVideoPath = @"http://api.junqingguanchashi.net/yunpan/bd/c.php?vid=/junqing/1213.mp4";NSURL *webVideoUrl = [NSURL URLWithString:webVideoPath];//步驟2：創建AVPlayerAVPlayer *avPlayer = [[AVPlayer alloc] initWithURL:webVideoUrl];//步驟3：使用AVPlayer創建AVPlayerViewController，并跳轉播放界面AVPlayerViewController *avPlayerVC =[[AVPlayerViewController alloc] init];avPlayerVC.player = avPlayer;[self presentViewController:avPlayerVC animated:YES completion:nil];

//步驟1：獲取視頻路徑NSString *webVideoPath = @"http://api.junqingguanchashi.net/yunpan/bd/c.php?vid=/junqing/1213.mp4";NSURL *webVideoUrl = [NSURL URLWithString:webVideoPath];//步驟2：創建AVPlayerAVPlayer *avPlayer = [[AVPlayer alloc] initWithURL:webVideoUrl];//步驟3：使用AVPlayer創建AVPlayerViewController，并跳轉播放界面AVPlayerViewController *avPlayerVC =[[AVPlayerViewController alloc] init];avPlayerVC.player = avPlayer;//步驟4：設置播放器視圖大小avPlayerVC.view.frame = CGRectMake(25, 0, 320, 300);//特別注意:AVPlayerViewController不能作為局部變量被釋放，否則無法播放成功//解決1.AVPlayerViewController作為屬性//解決2:使用addChildViewController，AVPlayerViewController作為子視圖控制器[self addChildViewController:avPlayerVC];[self.view addSubview:avPlayerVC.view];