iOS版：显示当前播放的曲目信息中的LockScreen？ [英] iOS: Displaying currently played track info in LockScreen?

问题描述

随着iOS 5的，我们有机会获得 MPNowPlayingInfoCenter 在锁屏和多任务栏上的多媒体控件来显示信息。我有发挥的本地音频文件的应用程序。我想显示像艺术家的姓名信息，专辑和在锁定屏幕上的作品与 MPNowPlayingInfoCenter ，但要做到这一点（据我所知）的唯一方法是使用 MPMusicPlayerController 并获得 nowPlayingItem ...问题是， MPMusicPlayerController 用于只播放iPod中的音乐，而不是本地存储的文件。有没有办法解决iOS 5中？

As of iOS 5 we have access to MPNowPlayingInfoCenter to display info in the lockscreen and in the multimedia controls on the multitasking bar. I have an app that plays local audio files. I want to display info like the artist's name, the album and the artwork on the lockscreen with MPNowPlayingInfoCenter, but the only way to do this (As far as I know) is to use MPMusicPlayerController and get nowPlayingItem... The problem is that MPMusicPlayerController is used to play iPod Music only, and not locally stored files. Is there a way around this in iOS 5?

推荐答案

您可以创建自己的NSDictionary，并提供了对MPNowPlayingInfoCenter。

You can create your own NSDictionary and supply that to the MPNowPlayingInfoCenter.

NSArray *keys = [NSArray arrayWithObjects:MPMediaItemPropertyAlbumTitle, MPMediaItemPropertyArtist, ..., nil];
NSArray *values = [NSArray arrayWithObjects:@"Album", @"Artist", ..., nil];
NSDictionary *mediaInfo = [NSDictionary dictionaryWithObjects:values forKeys:keys];
[[MPNowPlayingInfoCenter defaultCenter] setNowPlayingInfo:mediaInfo];

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