Android中判断是否有声音在播放

本人博客原文

在Android中，我们可以通过 AudioManager 来判断是否有声音正在播放。实例1：源码地址 PhoneWindowManager.java (frameworks\base\policy\src\com\android\internal\policy\impl) 源码如下：

/** * @return Whether fm is being played right now. */ boolean isFmActive () { final AudioManager am = ( AudioManager ) mContext . getSystemService ( Context . AUDIO_SERVICE ); if ( am == null ) { Log . w ( TAG , "isFmActive: couldn't get AudioManager reference" ); return false ; } return am . isFmActive (); }