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我爲Android製作了一個簡單的RPC機制應用程序,而且我遇到了一個問題,我無法從RPC類返回到UI線程。無法與UI線程通信
基本上我有3個類(ServerActivity,ServerView和ServiceImplementation),我創建了3個類,因爲我使用RPC和協議緩衝區進行繪製。
服務器活動:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
_sv = new ServerView(this);
setContentView(_sv);
rpcConnectionFactory = SocketRpcConnectionFactories.createServerRpcConnectionFactory(SERVER_PORT);
int nThreadPool = 1;
server = new RpcServer(rpcConnectionFactory, Executors.newFixedThreadPool(nThreadPool), true);
server.registerBlockingService(Service.newReflectiveBlockingService(new ServiceImpl(myServiceHandler)));
server.run();
}
Handler myServiceHandler = new Handler() {
public void handleMessage(Message msg) {
Log.i("Handler", "Handler IN");
_sv.set(msg.what); /*To communicate with the view*/
super.handleMessage(msg);
}
};
ServiceImplementation:
public CanvasServiceImpl(Handler mActivity) {
backToUIThread = mActivity;
}
public Response drawCircle(RpcController controller, Circle1 request)
throws ServiceException {
android.os.Message message = new android.os.Message();
message.what = 1;
ImplHandler.sendMessage(message);
Response response = Response.newBuilder().setResult("drawCircle Success").build();
return response;
}
我無法達到我的UI線程。有人知道爲什麼嗎?
感謝, 羅伯特