Android - WebSocket - 从最近使用的应用程序清除应用程序时，连接从服务中删除

弱龄寄事外，委怀在琴书。这篇文章主要讲述Android - WebSocket - 从最近使用的应用程序清除应用程序时，连接从服务中删除相关的知识，希望能为你提供帮助。
我已经创建了一个android服务来保持WebSocket连接。我正在从MainActivity调用该服务。因此，当我打开应用程序并从WebSocket服务器获取消息时建立连接。如果我最小化应用程序，那个时候也有连接。这可以。
如果我从最近使用的应用程序清除应用程序，则连接将与服务器断开连接。但我的服务一直在我的设备上运行。
【Android - WebSocket - 从最近使用的应用程序清除应用程序时，连接从服务中删除】Screenshot - Clearing recently used apps
服务类

package com.myapp; import android.app.Service; import android.content.Context; import android.content.Intent; import android.os.IBinder; import android.support.annotation.Nullable; import android.util.Log; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.WebSocket; public class WebSocketService extends Service {public static final String TAG = WebSocketService.class.getSimpleName(); private staticString SOCKET_ADDR = "ws://pc-websocket:8080/WebSocket/Endpoint"; WebSocket socket; private OkHttpClient client; public WebSocketService() { super(); }@Nullable @Override public IBinder onBind(Intent intent) { return null; }@Override public int onStartCommand(Intent intent, int flags, int startId) {if(socket==null) { new Thread(new Runnable() { public void run() {connectWSocket(SOCKET_ADDR); } }).start(); } return START_STICKY; }private void connectWSocket(String SOCKET_ADDR) { Log.i(TAG, "connectToPASocket()"); client = new OkHttpClient(); Request request = new Request.Builder().url(SOCKET_ADDR).build(); EchoWebSocketListener listener = new EchoWebSocketListener(this); socket = client.newWebSocket(request, listener); } }

WebSocketListener

package com.myapp; import android.content.Context; import android.support.v4.app.NotificationCompat; import android.app.NotificationManager; import okhttp3.Response; import okhttp3.WebSocket; import okhttp3.WebSocketListener; import okio.ByteString; public final class EchoWebSocketListener extends WebSocketListener {private static final int NORMAL_CLOSURE_STATUS = 1000; private Context context; public EchoWebSocketListener(){ }public EchoWebSocketListener(Context context){ this.context=context; }@Override public void onOpen(WebSocket webSocket, Response response) { }@Override public void onMessage(WebSocket webSocket, String message) { NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this.context, null) .setSmallIcon(R.mipmap.ic_launcher) .setContentTitle(message) .setContentText(message) .setStyle(new NotificationCompat.BigTextStyle() .bigText(message)) .setPriority(NotificationCompat.PRIORITY_DEFAULT); NotificationManager notificationManager = (NotificationManager) this.context.getSystemService(Context.NOTIFICATION_SERVICE); notificationManager.notify(123, mBuilder.build()); }@Override public void onMessage(WebSocket webSocket, ByteString bytes) { }@Override public void onClosing(WebSocket webSocket, int code, String reason) { webSocket.close(NORMAL_CLOSURE_STATUS, null); }@Override public void onFailure(WebSocket webSocket, Throwable t, Response response) { webSocket.close(NORMAL_CLOSURE_STATUS, null); } }

主要信息

package com.myapp; import android.app.ActivityManager; import android.content.Context; import android.content.Intent; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; public class MainActivity extends AppCompatActivity {@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Intent mServiceIntent = new Intent(getApplicationContext(), WebSocketService.class); startService(mServiceIntent); }}

我需要帮助。有没有其他方法来保持WebSocket连接？
我试图连接AsyncHttpClient。但同样的问题。

AsyncHttpClient.getDefaultInstance().websocket("ws://pc-websocket:8080/WebSocket/Endpoint", null, new AsyncHttpClient.WebSocketConnectCallback() { ..... .....

答案使用服务，但在前台，例如：https://www.101apps.co.za/articles/services-tutorials-part-2-a-foreground-service.html