Làm thế nào để có được FusedLocation từ IntentService

Question

• Làm thế nào để lấy lại vị trí hiện tại bằng cách sử dụng mới FusedLocation API từ một IntentService?
• Làm thế nào tôi có thể chắc chắn rằng IntentService sẽ nhận được tất cả callbacks từ FusedLocation API? tức là, Làm cách nào để có được đối tượng vị trí đồng bộ?

Answer 1

này có thể giúp bạn

import java.util.ArrayList; 
    import java.util.List; 

    import org.apache.http.NameValuePair; 
    import org.apache.http.message.BasicNameValuePair; 
    import org.json.JSONArray; 
    import org.json.JSONException; 
    import org.json.JSONObject; 

    import android.app.AlertDialog; 
    import android.app.Notification; 
    import android.app.NotificationManager; 
    import android.app.PendingIntent; 
    import android.app.Service; 
    import android.content.Context; 
    import android.content.Intent; 
    import android.content.SharedPreferences; 
    import android.location.Criteria; 
    import android.location.Location; 
    import android.location.LocationManager; 
    import android.os.Bundle; 
    import android.os.Handler; 
    import android.os.IBinder; 
    import android.util.Log; 
    import android.widget.Toast; 

    import com.example.driverapplication.CommonUtilities; 
    import com.example.driverapplication.R; 
    import com.example.driverapplication.ServiceHandler; 
    import com.example.driverapplication.utilities.ConnectionDetector; 
    import com.google.android.gms.common.ConnectionResult; 
    import com.google.android.gms.common.api.GoogleApiClient; 
    import com.google.android.gms.location.LocationRequest; 
    import com.google.android.gms.location.LocationServices; 

    public class LocationUpdate extends Service implements GoogleApiClient.ConnectionCallbacks, 
    GoogleApiClient.OnConnectionFailedListener { 
     private static final String TAG = "DRIVER"; 
     private LocationManager mLocationManager = null; 
     private static final int LOCATION_INTERVAL = 30000; 
     private static final float LOCATION_DISTANCE = 0; 
     private double currentLat, currentLng; 
     private SharedPreferences pref; 
     private String driverId; 
     private GoogleApiClient mGoogleApiClient; 
     // A request to connect to Location Services 
     private LocationRequest mLocationRequest; 

     private LocationListener locationListener; 

     private class LocationListener implements 
       com.google.android.gms.location.LocationListener { 

      public LocationListener() { 
      } 

      @Override 
      public void onLocationChanged(Location location) { 
       Log.e(TAG, "onLocationChanged: " + location); 
       currentLat = location.getLatitude(); 
       currentLng = location.getLongitude(); 

      } 


     } 


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

     @Override 
     public int onStartCommand(Intent intent, int flags, int startId) { 
      Log.e(TAG, "onStartCommand"); 
      super.onStartCommand(intent, flags, startId); 
      boolean stopService = false; 
      if (intent != null) 
       stopService = intent.getBooleanExtra("stopservice", false); 

      System.out.println("stopservice " + stopService); 

      locationListener = new LocationListener(); 
      if (stopService) 
       stopLocationUpdates(); 
      else { 
       if (!mGoogleApiClient.isConnected()) 
        mGoogleApiClient.connect(); 
      } 

      return START_STICKY; 
     } 

     @Override 
     public void onCreate() { 
      Log.e(TAG, "onCreate"); 
      pref = getSharedPreferences("driver_app", MODE_PRIVATE); 
      driverId = pref.getString("driver_id", ""); 
      mGoogleApiClient = new GoogleApiClient.Builder(this) 
      .addApi(LocationServices.API).addConnectionCallbacks(this) 
      .addOnConnectionFailedListener(this).build(); 
     } 



     @Override 
     public void onDestroy() { 
      Log.e(TAG, "onDestroy"); 
      super.onDestroy(); 
     } 

     public void stopLocationUpdates() { 
      LocationServices.FusedLocationApi.removeLocationUpdates(
        mGoogleApiClient, locationListener); 

      if (mGoogleApiClient.isConnected()) 
       mGoogleApiClient.disconnect(); 
     } 


     @Override 
     public void onConnectionFailed(ConnectionResult arg0) { 
      // TODO Auto-generated method stub 

     } 

     @Override 
     public void onConnected(Bundle arg0) { 
      // TODO Auto-generated method stub 
      mLocationRequest = LocationRequest.create(); 
      mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY); 
      mLocationRequest.setInterval(35000); 
      mLocationRequest.setFastestInterval(30000); 
      startLocationUpates(); 
     } 
     private void startLocationUpates() { 
      LocationServices.FusedLocationApi.requestLocationUpdates(
        mGoogleApiClient, mLocationRequest, locationListener); 
     } 


     @Override 
     public void onConnectionSuspended(int arg0) { 
      // TODO Auto-generated method stub 

     } 

    }