重新启动/崩溃后,RecyclerView将不会更新

时间:2019-09-23 14:23:55

标签: java android sockets

所以我正在开发一个涉及套接字的应用程序。多个字符串通过套接字发送,接收端接收它,并相应地更新RecyclerView。一切正常,直到应用程序崩溃/重新启动。我不知道会发生什么,但是Play商店中有一个名为XRecorder的应用程序,每次我使用屏幕截图功能时,我的应用程序都会重新启动。现在,当我通过套接字发送消息时,它会收到消息,但是不会更新RecyclerView吗?出现Toast的原因是我知道收到它的原因。当我致电removeItem()

时,它也会更新

这是我的代码:

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ButterKnife.bind(this);
    serverAsync.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
}

private class ServerAsync extends AsyncTask<Void, Void, Void> {

        @Override
        protected Void doInBackground(Void... voids) {
            try {
                serverSocket = new ServerSocket(serverPort);
                while (true) {
                    Socket client = serverSocket.accept();
                    isConnected = client.isConnected();

                    if (isConnected) {
                       try {
                           handler.post(new Runnable() {
                               @Override
                               public void run() {
                                   updateStatusUI();
                               }
                           });

                           Entry entry = new Entry();
                           String inputLine;
                           BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
                           while ((inputLine = in.readLine()) != null) {
                               StringBuilder sb = new StringBuilder();
                               String message = inputLine;
                               sb.append(message);
                               entry.add(sb.toString());
                           }

                           //READ NEW ENTRIES
                           handler.post(new Runnable() {
                               @Override
                               public void run() {
                                   splitOrder(entry);
                                   saveArrayList();
                               }
                           });

                           in.close();
                           handler.post(new Runnable() {
                               @Override
                               public void run() {
                                   entryAdapter.notifyDataSetChanged();
                                   Toast.makeText(getApplicationContext(), "In has closed :" + client.getRemoteSocketAddress(), Toast.LENGTH_SHORT).show();
                                   updateStatusUI();
                               }
                           });

                       } catch (Exception e) {
                            Log.e("TEST", e.getMessage(), e);
                       }
                    } else {
                        Toast.makeText(getApplicationContext(), "Client :" + client.getRemoteSocketAddress()+" has DISCONNECTED", Toast.LENGTH_SHORT).show();
                        handler.post(new Runnable() {
                            @Override
                            public void run() {
                                updateStatusUI();
                            }
                        });
                    }
                }

            } catch (Exception e) {
                Log.e("UHE", e.getMessage(), e);

            }
            return null;
        }
    }

public void removeItem(int position) {
     entryAdapter.notifyDataSetChanged();
}

我曾尝试为RecyclerView重置适配器,但是那根本行不通。我还注意到,每次应用崩溃并重新启动时,我都会收到java.net.BindException: bind failed: EADDRINUSE (Address already in use)

指向创建我的serverSocket (serverSocket = new ServerSocket(serverPort)

这可能是RecyclerView无法更新的原因吗? ArrayList可以使用传入消息进行更新,而不能使用视图进行更新。

0 个答案:

没有答案