iOS APP的音乐设置

Question

我对iOS系统和iOS应用有疑问。

当我播放iPhone的音乐时，某些应用会在我打开它时停止播放音乐。

例如：Line Ranger。 有些应用会让音乐

像Facebook一样持续播放。

如果我制作了应用，如何设置设置？

由于

Answer 1

您可以设置您想要使用AVAudioSession的类别。

/* set session category */  
- (BOOL)setCategory:(NSString *)category error:(NSError **)outError;

可用类别包括：

#pragma mark -- Values for the category property --  

/*  Use this category for background sounds such as rain, car engine noise, etc. Mixes with other music. */  
AVF_EXPORT NSString *const AVAudioSessionCategoryAmbient;  

/*  Use this category for background sounds.  Other music will stop playing. */  
AVF_EXPORT NSString *const AVAudioSessionCategorySoloAmbient;  

/* Use this category for music tracks.*/  
AVF_EXPORT NSString *const AVAudioSessionCategoryPlayback;  

/*  Use this category when recording audio. */  
AVF_EXPORT NSString *const AVAudioSessionCategoryRecord;  

/*  Use this category when recording and playing back audio. */  
AVF_EXPORT NSString *const AVAudioSessionCategoryPlayAndRecord;  

/*  Use this category when using a hardware codec or signal processor while not playing or recording audio. */  
AVF_EXPORT NSString *const AVAudioSessionCategoryAudioProcessing;