safeDispatch/src/main/java/com/safemobile/safedispatch/TabLayoutActivity.java

@@ -74,6 +74,9 @@ import android.content.res.AssetManager;
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.net.ConnectivityManager;
+import android.net.Network;
+import android.net.NetworkCapabilities;
+import android.net.NetworkRequest;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Build;
@@ -571,8 +574,67 @@ public class TabLayoutActivity extends AbstractSDParentActivity {
 
 		/* Create Service and bind to it */
 		getApplicationContext().bindService(new Intent(this, TCPService.class), serviceConnection, Context.BIND_AUTO_CREATE);
+
+
+		ConnectivityManager connectivityManager =
+				(ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N)
+			connectivityManager.registerDefaultNetworkCallback(networkCallback);
+		else {
+			NetworkRequest request = new NetworkRequest.Builder()
+					.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET).build();
+			connectivityManager.registerNetworkCallback(request, networkCallback);
+		}
 	}
 
+	private final ConnectivityManager.NetworkCallback networkCallback = new ConnectivityManager.NetworkCallback() {
+		@Override
+		public void onAvailable(Network network) {
+			// network available
+			Log.v(TAG, "network available");
+			Log.v(TAG, "tcp: " + (tcp != null));
+//			if (tcp == null)
+//				getApplicationContext().bindService(new Intent(context, TCPService.class), serviceConnection, Context.BIND_AUTO_CREATE);
+
+//			if (myService != null)
+//				tcp = myService.getTCPConnection();
+
+			if (tcp != null) {
+				if (tcp.isConnectionUP) {
+					tcp.isConnectionUP = false;
+					tcp.Stop();
+				}
+//				tcp = null;
+
+				uiHandler.post(() -> {
+					Log.v(TAG, "myService: " + (myService != null));
+					if (myService != null) {
+						myService.stopTCPConnection();
+						myService.recreateTCPConnection();
+
+						getApplicationContext().bindService(new Intent(context, TCPService.class), serviceConnection, Context.BIND_AUTO_CREATE);
+						if (getRadioActivity() != null)
+							getRadioActivity().onCreate(getRadioActivity().savedInstanceState);
+						if (getMessageActivity() != null)
+							getMessageActivity().onCreate(getMessageActivity().getSavedInstanceState());
+						if (getRecordingsActivity() != null)
+							getRecordingsActivity().onCreate(getRecordingsActivity().getSavedInstanceState());
+						if (getAlarmActivity() != null)
+							getAlarmActivity().onCreate(getAlarmActivity().getSavedInstanceState());
+
+						uiHandler.post(initTCPRUN);
+					}
+				});
+			}
+		}
+
+		@Override
+		public void onLost(Network network) {
+			// network unavailable
+			Log.v(TAG, "network unavailable");
+		}
+	};
+
 	/**
 	 * Broadcast Received for notifications
 	 */
@@ -2098,7 +2160,7 @@ public class TabLayoutActivity extends AbstractSDParentActivity {
 //				whenBackPressed(AppParams.ActivityResult.tcpDown);
 
 				// send a broadcast
-				notifyBroadcast(OperationCodes.TCP_CONNECTION_DOWN + "");
+//				notifyBroadcast(OperationCodes.TCP_CONNECTION_DOWN + "");
 			}
 
 			@Override