tart和stop之间循环的流程应该是：reset()-->setDataSource(path)-->prepare()-->start()-->stop()--reset()-->

报prepareAsync called in state 1 错误

						myPlayer.setDataSource(path + "/" + listFile[postion]);
						myPlayer.reset();

改过来

	                                        myPlayer.reset();
						myPlayer.setDataSource(path + "/" + listFile[postion]);

prepareAsync called in state 1