MediaPlayer.framework:如何将MPMusicRepeatModeDefault"转换"为实际模式？

Question

正如Apple文件中所述:

enum {
   MPMusicRepeatModeDefault,
   MPMusicRepeatModeNone,
   MPMusicRepeatModeOne,
   MPMusicRepeatModeAll
};
typedef NSInteger MPMusicRepeatMode;

然而,MPMusicRepeatModeDefault被描述为用户首选的重复模式.自从我写一个音乐播放器,我需要知道每个什么是当前重复模式的时间,而当这是返回,"实际"模式的内容:

• MPMusicRepeatModeNone
• MPMusicRepeatModeOne
• MPMusicRepeatModeAll

应该选择？或者没有办法获得这些信息？

Answer 1

我的理解是，它MPMusicRepeatModeDefault仅用于实例化您自己的播放器，如此处所述。

MPMusicPlayerController* appMusicPlayer = [MPMusicPlayerController applicationMusicPlayer];

// Use whatever the user has set in their iPod settings
// Omitting this line has no real effect because deferring to the
// user mode is the default setting for new players
[appMusicPlayer setRepeatMode: MPMusicRepeatModeDefault];

如果您想知道默认设置实际上是什么，您应该能够从iPodMusicPlayer 实例获取它：

MPMusicPlayerController* iPodMusicPlayer =
    [MPMusicPlayerController iPodMusicPlayer];

MPMusicRepeatMode theDefaultMode = [iPodMusicPlayer repeatMode];