Question

我刚刚创立了AVPlayer,它很好地发挥了音乐作用。我有两个问题:

How to play another music from another URL (should I stop current player?)
How to show current time of the song in UISlider (actually is it a method that called when the song is playing?)

Answer 1

(1) 如果你使用——(id)initWithURL(NSURL *)URL,那么你就应当停止参与pa、交易和制造新情况。

    AVPlayer *player = [AVPlayer alloc] initWithURL:[NSURL URLWithString:@"http:/someurl.com"]];
    [player play];
    [player pause];
    [player release];

    player = [AVPlayer alloc] initWithURL:[NSURL URLWithString:@"http:/someurl2.com"]];
    [player pause];
    [player release];

如果你使用过感人的话接着,与LURL一样,也只是一线。

页: 1 The easiest is the accreditation period of the present project 之后,更新了具有这一价值的UISlider。您可使用国家空间局定期检查期限。

      self.player.currentItem.asset.duration

Answer 2

Use -[AVPlayer replaceCurrentItemWithPlayerItem] to replace the current playing item reusing the player instance. You can create an item with an URL or with an asset.

为了知道某一项物品何时能使用通知编号。

使用<代码>-[AVPlayer AddPeriodictime Observer forInterval],在参与者玩.期间定期开展某些行动。 See this example:

[self.player addPeriodicTimeObserverForInterval:CMTimeMakeWithSeconds(0.1, 100) 
                                          queue:nil 
                                     usingBlock:^(CMTime time) { 
                                     <# your code will be called each 1/10th second #> 
 }];

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