ios – 获取视频的当前时间(播放器 – Swift)

概述我使用 Player(使用AVFoundation)设置了一个视频播放器.我正在尝试访问和 *** 作视频的currentTime,但是,库只提供视频的持续时间而不是currentTime. 我正在调整demo project of Player. 请查看下面的“更新”部分而不是此处： 一位朋友告诉我,我可以使用这种方法,但在这种情况下,我无法真正了解如何调整这种方法. [NSTimer schedule 我使用 Player(使用AVFoundation)设置了一个视频播放器.我正在尝试访问和 *** 作视频的currentTime,但是,库只提供视频的持续时间而不是currentTime.

我正在调整demo project of Player.

请查看下面的“更新”部分而不是此处：

一位朋友告诉我,我可以使用这种方法,但在这种情况下,我无法真正了解如何调整这种方法.

[NSTimer scheduledTimerWithInterval:1.0 target:self selector:@selector(refreshCurrentTimeTextFIEld) userInfo:nil repeats:YES]-(voID)refreshCurrentTimeTextFIEld {    NSTimeInterval currentTime;     QTMovIE *movIE = [movIEVIEw movIE];    QTGetTimeInterval([movIE currentTime],&currentTime);    int hours = currentTime/3600;    int minutes = (currentTime/60) % 60;    int seconds = currentTime % 60;    Nsstring *timeLabel;    if(hours > 0) {        timeLabel = [Nsstring stringWithFormat:@"%02i:%02i:%02i",hours,minutes,seconds];    } else {        timeLabel = [Nsstring stringWithFormat:@"%02i:%02i",seconds];    }    [yourTextFIEld setStringValue:timeLabel];}

如果你们中的任何人使用或偶然发现这个库,有没有办法获得currentTime？有没有其他方法来访问/ *** 纵视频的当前时间？

更新：

有人显然给了导入和输入的代码.连接UiSlider for Objective-C用于等效库PBJVideoPlayer in here.但我无法在Swift for Player上采用相同的方法.

来自链接的片段：

diff --git a/Pods/PBJVIDeoPlayer/Source/PBJVIDeoPlayerController.m b/Pods/PBJVIDeoPlayer/Source/PBJVIDeoPlayerController.mindex be6a7d1..51a420e 100644--- a/Pods/PBJVIDeoPlayer/Source/PBJVIDeoPlayerController.m+++ b/Pods/PBJVIDeoPlayer/Source/PBJVIDeoPlayerController.m@@ -81,6 +81,8 @@ static Nsstring * const PBJVIDeoPlayerControllerReadyFordisplay = @"readyFordisp     float _volume; }+@property (nonatomic,strong) UiSlider *slIDer;+ @end @implementation PBJVIDeoPlayerController@@ -93,6 +95,16 @@ static Nsstring * const PBJVIDeoPlayerControllerReadyFordisplay = @"readyFordisp #pragma mark - getters/setters+- (UiSlider *)slIDer {+    if (_slIDer == nil) {+        _slIDer = [[UiSlider alloc] initWithFrame:CGRectZero];+        _slIDer.minimumValue = 0.0;+        _slIDer.maximumValue = 0.0;+        _slIDer.continuous = YES;+    }+    return _slIDer;+}+ - (voID)setVIDeoFillMode:(Nsstring *)vIDeoFillMode {    if (_vIDeoFillMode != vIDeoFillMode) {@@ -311,6 +323,59 @@ static Nsstring * const PBJVIDeoPlayerControllerReadyFordisplay = @"readyFordisp     NSNotificationCenter *nc = [NSNotificationCenter defaultCenter];             [nc addobserver:self selector:@selector(_applicationWillResignActive:) name:UIApplicationWillResignActiveNotification object:nil];     [nc addobserver:self selector:@selector(_applicationDIDEnterBackground:) name:UIApplicationDIDEnterBackgroundNotification object:nil];++    self.slIDer.hIDden = YES;+    [self.slIDer addTarget:self action:@selector(moveScrubber:) forControlEvents:UIControlEventValueChanged];+    [self.vIEw addSubvIEw:self.slIDer];++    __weak typeof(self) weak = self;+    CMTime intervalSeconds = CMTimeMakeWithSeconds(0.25f,NSEC_PER_SEC);+    [_player addPeriodicTimeObserverForInterval:intervalSeconds+                                          queue:dispatch_get_main_queue()+                                     usingBlock:^(CMTime time) {+                                         [weak syncScrubber];+                                     }];+}++- (voID)syncScrubber+{+    CMTime duration = _player.currentItem.duration;+    if (CMTIME_IS_INVALID(duration)) {+        self.slIDer.maximumValue = 0.0;+    } else {+        float64 seconds = CMTimeGetSeconds(duration);+        if (isfinite(seconds)) {+            self.slIDer.maximumValue = seconds;+            float64  current = CMTimeGetSeconds([_player currentTime]);+            self.slIDer.value = current;+        }+    }+}++- (voID)moveScrubber:(UiSlider *)slIDer+{+    CMTime duration = _player.currentItem.duration;+    if (CMTIME_IS_INVALID(duration)) {+        self.slIDer.maximumValue = 0.0;+    } else {+        float64 seconds = CMTimeGetSeconds(duration);+        if (isfinite(seconds)) {+            self.slIDer.maximumValue = seconds;+            [_player seektotime:CMTimeMakeWithSeconds(slIDer.value,NSEC_PER_SEC)];+        }+    }+}++- (voID)vIEwDIDAppear:(BOol)animated+{+    [super vIEwDIDAppear:animated];++    CGRect slIDerRect = self.vIEw.frame;+    slIDerRect.origin.y = slIDerRect.size.height - 40;+    slIDerRect.size.height = 40;+    slIDerRect.origin.x = self.vIEw.frame.size.wIDth/4.0;+    slIDerRect.size.wIDth =  self.vIEw.frame.size.wIDth/2.0;+    self.slIDer.frame = slIDerRect; } - (voID)vIEwDIDdisappear:(BOol)animated@@ -402,11 +467,13 @@ typedef voID (^PBJVIDeoPlayerBlock)();             case PBJVIDeoPlayerPlaybackStateStopped:             {                 [self playFromBeginning];+                self.slIDer.hIDden = YES;                 break;             }             case PBJVIDeoPlayerPlaybackStatePaused:             {                 [self playFromCurrentTime];+                self.slIDer.hIDden = YES;                 break;             }             case PBJVIDeoPlayerPlaybackStatePlaying:@@ -414,6 +481,7 @@ typedef voID (^PBJVIDeoPlayerBlock)();             default:             {                 [self pause];+                self.slIDer.hIDden = NO;                 break;             }         }@@ -511,6 +579,14 @@ typedef voID (^PBJVIDeoPlayerBlock)();                 _vIDeoVIEw.playerLayer.backgroundcolor = [[UIcolor blackcolor] CGcolor];                 [_vIDeoVIEw.playerLayer setPlayer:_player];                 _vIDeoVIEw.playerLayer.hIDden = NO;++                CMTime duration = _playerItem.duration;+                if (CMTIME_IS_INVALID(duration)) {+                    self.slIDer.maximumValue = 0.0;+                } else {+                    float64 seconds = CMTimeGetSeconds(duration);+                    self.slIDer.maximumValue = seconds;+                }                 break;             }             case AVPlayerStatusFailed:

解决方法 我只是运行GitHub项目,我通过以下代码修复它：

在您的Player.swift类中.

player.addPeriodicTimeObserverForInterval(CMTimeMake(1,100),queue: dispatch_get_main_queue()) {            [uNowned self] time in            let timeString = String(format: "%02.2f",CMTimeGetSeconds(time))            print("time is \(timeString)")            self.delegate?.playerPlaybackstimer(timeString)            }

在公共方便init(){funtion中添加的Above方法将如下所示：

public convenIEnce init() {        self.init(nibname: nil,bundle: nil)        self.player = AVPlayer()        self.player.actionAtItemEnd = .Pause        self.player.addobserver(self,forKeyPath: PlayerRateKey,options: ([NSkeyvalueObservingOptions.New,NSkeyvalueObservingOptions.old]),context: &PlayerObserverContext)        self.playbackLoops = false        self.playbackFreezesAtEnd = false        self.playbackState = .Stopped        self.bufferingState = .UnkNown        player.addPeriodicTimeObserverForInterval(CMTimeMake(1,CMTimeGetSeconds(time))            print("time is \(timeString)")            self.delegate?.playerPlaybackstimer(timeString)            }    }

之后,我在公共协议PlayerDelegate中创建一个Delegate方法：classthat将如下所示：

public protocol PlayerDelegate: class {    func playerReady(player: Player)    func playerPlaybackStateDIDChange(player: Player)    func playerBufferingStateDIDChange(player: Player)    func playerPlaybackWillStartFromBeginning(player: Player)    func playerPlaybackDIDEnd(player: Player)     func playerPlaybackstimer(Nsstring: String)}

现在进入VIEwController.swift类并添加以下函数：

func playerPlaybackstimer(Nsstring: String) {        print("currunt time \(Nsstring)")    }

现在运行您的项目并享受.

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