public class TransferTools {

	private static final int MSG_START = 1001;

	private static final int MSG_TRANSFERRING = 1002;

	public void setTransferListener(TransferListener mListner) {

		mTransferListener = mListner;

	}

	public interface TransferListener {

		/**

		 * 开始

		 */

		void onStart();

		void onTransfer(String text);

	}

	private static TransferListener mTransferListener = null;

	private static Handler sHandler = new Handler(Looper.getMainLooper()) {

		@Override

		public void handleMessage(android.os.Message msg) {

			if (mTransferListener == null) {

				return;

			}

			switch (msg.what) {

			case MSG_START:

				mTransferListener.onStart();

				break;

			case MSG_TRANSFERRING:

				mTransferListener.onTransfer((String) msg.obj);

				break;

			default:

				break;

			}

		};

	};

	private void work() {

		//...耗时操作,如网络请求

		Message msg = sHandler.obtainMessage();

		msg.what = MSG_START;

		msg.obj = message;

		sHandler.sendMessage(msg);

	}

}