调用这个服务端的removeTrack方法报错说是空引用怎么解决
long Id =imediaPlaybackService.removeTrack(num1 );
java.lang.NullPointerException: Attempt to invoke interface method 'int com.android.music.IMediaPlaybackService.removeTrack(long)' on a null object reference
调用这个服务端的removeTrack方法报错说是空引用怎么解决
long Id =imediaPlaybackService.removeTrack(num1 );
java.lang.NullPointerException: Attempt to invoke interface method 'int com.android.music.IMediaPlaybackService.removeTrack(long)' on a null object reference