blocks|key|568095|text|从iOS+5开始，MPNowPlayingInfoCenter支持在锁定屏幕和远程回放控件中设置轨道标题和相册艺术图像。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|568096|要检查MPNowPlayingInfoCenter是否可用，请尝试如下：-|style|CODE|568097|if+([MPNowPlayingInfoCenter+class])++{
+++UIImage+*albumArtImg+=+[UIImage+imageNamed:@"abc.png"];
+++albumArt+=+[[MPMediaItemArtwork+alloc]+initWithImage:albumArtImg];

++++NSDictionary+*dictCurrentlyPlaying+=+[NSDictionary+dictionaryWithObjects:[NSArray+arrayWithObjects:@"Temporary",+[NSNumber+numberWithInt:22],+albumArt,+nil]+forKeys:[NSArray+arrayWithObjects:MPMediaItemPropertyTitle,+MPMediaItemPropertyPlaybackDuration,+MPMediaItemPropertyArtwork,+nil]];
++++[MPNowPlayingInfoCenter+defaultCenter].nowPlayingInfo+=+dictCurrentlyPlaying;
}|code-block|syntax|javascript|568098|更新：-|BOLD|568099|请看一下这些：-|568100|http://jaysonlane.net/tech-blog/2012/04/lock-screen-now-playing-with-mpnowplayinginfocenter/|ordered-list-item|568101|在iPhone上播放背景音乐时，如何设置标题？|568102|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.apple.com/library/ios/documentation/MediaPlayer/Reference/MPNowPlayingInfoCenter_Class/Reference/Reference.html#//apple_ref/doc/uid/TP40010927|1|2|https://stackoverflow.com/questions/10478383/how-to-set-the-title-when-playing-music-in-background-on-iphone^0|9|M|0|0|3|M|0|0|0|4|0|0|0|2K|1|0|0|N|2|0^^$0|@$1|2|3|4|5|6|7|17|8|@]|9|@$A|18|B|19|1|1A]]|C|$]]|$1|D|3|E|5|6|7|1B|8|@$A|1C|B|1D|F|G]]|9|@]|C|$]]|$1|H|3|I|5|J|7|1E|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1F|8|@$A|1G|B|1H|F|O]]|9|@]|C|$]]|$1|P|3|Q|5|6|7|1I|8|@]|9|@]|C|$]]|$1|R|3|S|5|T|7|1J|8|@]|9|@$A|1K|B|1L|1|1M]]|C|$]]|$1|U|3|V|5|T|7|1N|8|@]|9|@$A|1O|B|1P|1|1Q]]|C|$]]|$1|W|3|-4|5|6|7|1R|8|@]|9|@]|C|$]]]|X|$Y|$5|Z|10|11|C|$12|13]]|14|$5|Z|10|11|C|$12|S]]|15|$5|Z|10|11|C|$12|16]]]]

iOS 5 onwards, <a href="https://developer.apple.com/library/ios/documentation/MediaPlayer/Reference/MPNowPlayingInfoCenter_Class/Reference/Reference.html#//apple_ref/doc/uid/TP40010927" rel="nofollow noreferrer">MPNowPlayingInfoCenter</a> supports the setting of the track title as well as album art image in both the lock screen and the remote playback controls. To check whether <code>MPNowPlayingInfoCenter</code> is available, try this:- 

<pre><code>if ([MPNowPlayingInfoCenter class]) {
 UIImage *albumArtImg = [UIImage imageNamed:@"abc.png"];
 albumArt = [[MPMediaItemArtwork alloc] initWithImage:albumArtImg];

 NSDictionary *dictCurrentlyPlaying = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:@"Temporary", [NSNumber numberWithInt:22], albumArt, nil] forKeys:[NSArray arrayWithObjects:MPMediaItemPropertyTitle, MPMediaItemPropertyPlaybackDuration, MPMediaItemPropertyArtwork, nil]];
 [MPNowPlayingInfoCenter defaultCenter].nowPlayingInfo = dictCurrentlyPlaying;
}
</code></pre>

Updated:- Please have a look at these:- 1. <a href="http://jaysonlane.net/tech-blog/2012/04/lock-screen-now-playing-with-mpnowplayinginfocenter/" rel="nofollow noreferrer">http://jaysonlane.net/tech-blog/2012/04/lock-screen-now-playing-with-mpnowplayinginfocenter/</a> 2. <a href="https://stackoverflow.com/questions/10478383/how-to-set-the-title-when-playing-music-in-background-on-iphone">How to set the title when playing music in background on iPhone?</a>

I have an online audio player app. I want the user to have controls of the app's play and pause even from the locked screen. The buttons are already shown by default. <a href="https://stackoverflow.com/questions/21138760/why-is-moving-in-between-the-tabs-reinitialising-the-songs">The code for my app is here.</a>

Now how to enable the buttons to control my player. And how to show the image of my App when the screen of the App is locked. This is the example image

<img src="https://i.stack.imgur.com/Ytna3.png" alt="enter image description here">

Please help if this is possible.
Thanx in Advance.

How to control play and pause of AVPlayer from locked screen. And how to set image of the app on locked screen

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个在线音频播放器应用程序。我希望用户有控制应用程序的播放和暂停，甚至从锁定的屏幕。默认情况下，按钮已经显示。现在如何启用按钮来控制我的播放器。以及当应用程序的屏幕被锁定时如何显示我的应用程序的图像。这是一个示例图像​​如果可能的话请帮忙。提前鸣谢。

如何从锁定的屏幕上控制AVPlayer的播放和暂停。以及如何在锁定的屏幕上设置应用程序的图像-腾讯云开发者社区-腾讯云

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