Question

我写了一个服务，我将数据发送到服务器。我的问题在于，在版本4中，当应用程序关闭时，该服务可用于Internet并且数据将被发送但是当我在版本7上测试时当程序关闭时服务没有Internet访问它似乎是操作系统阻止互联网访问。我该怎么办？这是我的代码

public class GPSTracker extends Service implements android.location.LocationListener {

      boolean isGPSEnabled = false;
      boolean isNetworkEnabled = false;
      boolean canGetLocation = false;
      private PendingIntent pendingIntent;
      Location location; // location
      double latitude; // latitude
      double longitude; // longitude
      private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 1; // 10 meters
      private static final long MIN_TIME_BW_UPDATES = G.preferences.getInt(Const.PREF_DRIVER_STATUS_REQUEST_PERIOD, 10000); // 1 minute
      protected LocationManager locationManager;
      public GPSTracker() {
        getLocation();
      }
      @Override
      public int onStartCommand(Intent intent1, int flags, int startId) {
        getLocation();
        stopSelf();
        Intent intentAlarm = new Intent(getApplicationContext(), com.rasef.app.driver.services.GPSTracker.class);
        intentAlarm.setAction(Const.SERVICE_STATUS_LOCATION_ACTION);
        pendingIntent = PendingIntent.getService(getApplicationContext(), Const.SERVICE_STATUS_LOCATION_REQUEST_CODE, intentAlarm, 0);
        G.alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + G.preferences.getInt(Const.PREF_STATUS_REQUEST_PERIOD, 10000), pendingIntent);
        return START_STICKY;
      }
      @SuppressLint("MissingPermission")
      public Location getLocation() {
        try {
          locationManager = (LocationManager) this.getSystemService(LOCATION_SERVICE);
          isGPSEnabled = locationManager
            .isProviderEnabled(LocationManager.GPS_PROVIDER);
          isNetworkEnabled = locationManager
            .isProviderEnabled(LocationManager.NETWORK_PROVIDER);

          if (!isGPSEnabled && !isNetworkEnabled) {
          } else {
            this.canGetLocation = true;
            // First get location from Network Provider
            if (isGPSEnabled) {
              locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, MIN_TIME_BW_UPDATES, MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
              Log.d("GPS Enabled", "GPS Enabled");
              if (locationManager != null) {
                location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
                if (location != null) {
                  latitude = location.getLatitude();
                  longitude = location.getLongitude();
                  Log.d("Gps", latitude + "," + longitude);
                }
              }
            }
            if (isNetworkEnabled) {
              if (location == null) {
                locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, MIN_TIME_BW_UPDATES, MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
                Log.d("Network", "Network");
                if (locationManager != null) {
                  location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                  if (location != null) {
                    latitude = location.getLatitude();
                    longitude = location.getLongitude();
                    Log.d("Network", latitude + "," + longitude);
                  }
                }
              }
            }
            if (location != null) {
              sendToServerLocation(location);
            } else {
            }
          }

        } catch (Exception e) {
          e.printStackTrace();
        }
        return location;
      }
      private void sendToServerLocation(Location location) {
        // codes send to server with library retrofit
      }
      @Override
      public void onLocationChanged(Location location) {

        Log.i("Change", "Location:" + location.getLatitude() + "," + location.getLongitude());
      }

      @Override
      public void onProviderDisabled(String provider) {
      }

      @Override
      public void onProviderEnabled(String provider) {
      }

      @Override
      public void onStatusChanged(String provider, int status, Bundle extras) {
      }

      @Override
      public IBinder onBind(Intent arg0) {
        return null;
      }
    }

Answer 1

将INTERNET权限添加到清单文件中。

你必须添加这一行：

<uses-permission android:name="android.permission.INTERNET" />

在AndroidManifest.xml中的应用程序标记之外

我无法使用互联网服务

1 个答案: