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MediaPlayer.isplaying() 方法中的 java.lang.IllegalStateException

publicstaticMediaPlayermp=null;publicstaticvoidplayGeneric(intname,finalImageButtonbutton,finalImageButtonpervious,Contextcontext){button.setEnabled(false);button.setClickable(false);pervious.setEnabled(false);pervious.setClickable(false);try{if(mp!=null&&mp.isPlaying()){mp.stop();mp.release();m

MediaPlayer.isplaying() 方法中的 java.lang.IllegalStateException

publicstaticMediaPlayermp=null;publicstaticvoidplayGeneric(intname,finalImageButtonbutton,finalImageButtonpervious,Contextcontext){button.setEnabled(false);button.setClickable(false);pervious.setEnabled(false);pervious.setClickable(false);try{if(mp!=null&&mp.isPlaying()){mp.stop();mp.release();m