在做播放器,播放在線音樂出錯, 有哪位知道的,可以看下?

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.benben.cn.jsmusicdemo, PID: 8424
java.lang.IllegalArgumentException: You must call this method on the main thread

at android.os.Parcel.readException(Parcel.java:1469)
at android.os.Parcel.readException(Parcel.java:1419)
at com.benben.cn.jsmusicdemo.IMediaAidlInterface$Stub$Proxy.play(IMediaAidlInterface.java:594)
at com.benben.cn.jsmusicdemo.service.MusicPlayer.playAll(MusicPlayer.java:458)
at com.benben.cn.jsmusicdemo.fragment.BoughtMusicFragment$PlayMusic.run(BoughtMusicFragment.java:200)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5019)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)