Ort ist null Fused Location Provider Android

Question

Ich überprüfe, ob die Standortdienste auf dem Handy aktiviert ist und wenn ja, hören Sie Build googleapiclient und hören Sie die Standortänderungen. Das Problem, dem ich gegenüberstehe, ist, sobald der Standort mobil und -geöffnet ist, kann ich den Standort nicht ermitteln (Breite/Länge). Der Standort ist immer null.

isLocationEnabled - prüft, ob der Standort auf

  if (isLocationEnabled(getApplicationContext())) { 
       mMenu.getItem(0).setVisible(true); 
      } 
      else { 
       Snackbar.make(mLayout, getString(R.string.loc_not_enable), 
         Snackbar.LENGTH_LONG).show(); 
      } 
     } 
    }); 
    //setup GoogleApiclient 
    buildGoogleApiClient(); 


public static boolean isLocationEnabled(Context context) { 
    int locationMode = 0; 
    String locationProviders; 
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){ 
     try { 
      locationMode = Settings.Secure.getInt(context.getContentResolver(), Settings.Secure.LOCATION_MODE); 
     } catch (SettingNotFoundException e) { 
      e.printStackTrace(); 
      return false; 
     } 
     return locationMode != Settings.Secure.LOCATION_MODE_OFF; 

    }else{ 
     locationProviders = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED); 
     return !TextUtils.isEmpty(locationProviders); 
    } 
} 


private synchronized void buildGoogleApiClient() { 
    mGoogleApiClient = new GoogleApiClient.Builder(this) 
      .addApi(LocationServices.API) 
      .addConnectionCallbacks(this) 
      .addOnConnectionFailedListener(this) 
      .build(); 
} 

@Override 
protected void onStart() { 
    // Connect the client. 
    super.onStart(); 
    if (mGoogleApiClient != null) { 
     mGoogleApiClient.connect(); 
    } 
} 

@Override 
protected void onStop() { 
    // Disconnecting the client invalidates it. 
    mGoogleApiClient.disconnect(); 
    super.onStop(); 
} 

@Override 
public void onConnected(Bundle bundle) { 
    if (ContextCompat.checkSelfPermission(getApplicationContext(), android.Manifest.permission.ACCESS_FINE_LOCATION) 
      != PackageManager.PERMISSION_GRANTED) { 
     ActivityCompat.requestPermissions(this, new String[]{android.Manifest.permission.ACCESS_FINE_LOCATION}, PERMISSION_LOCATION); 
    } else { 
     startLocationServices(); 

    } 
} 

private void startLocationServices() { 
    try { 
     LocationRequest mLocationRequest = LocationRequest.create(); 
     Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
       mGoogleApiClient); 
     if (mLastLocation==null){ 
      LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this); 
     } else { 
      Log.d("mLastLocation", String.valueOf(mLastLocation)); 
      lat = String.valueOf(mLastLocation.getLatitude()); 
      lon = String.valueOf(mLastLocation.getLongitude()); 
     } 
     mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY); 
     mLocationRequest.setInterval(10*1000); // Update location every 10 seconds 
     mLocationRequest.setFastestInterval(1 * 1000); 
     LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this); 
    } catch (SecurityException exception) { 
     exception.printStackTrace(); 
    } 
} 


    E/AndroidRuntime: FATAL EXCEPTION: main 
       Process: com.my.game.wesport, PID: 30629 
       java.lang.NumberFormatException: empty String 
        at java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1071) 
        at java.lang.Double.parseDouble(Double.java:547) 
        at com.my.game.wesport.MapsActivity.onMapReady(MapsActivity.java:161) 
        at com.google.android.gms.maps.SupportMapFragment$zza$1.zza(Unknown Source) 
        at com.google.android.gms.maps.internal.zzt$zza.onTransact(Unknown Source) 
        at android.os.Binder.transact(Binder.java:499) 
        at zu.a(:com.google.android.gms.DynamiteModulesB:82) 
        at maps.ad.t$5.run(Unknown Source) 
        at android.os.Handler.handleCallback(Handler.java:751) 
        at android.os.Handler.dispatchMessage(Handler.java:95) 
        at android.os.Looper.loop(Looper.java:154) 
        at android.app.ActivityThread.main(ActivityThread.java:6077) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 

Answer 1

das Problem behoben wurde eingeschaltet wird, nachdem ich mein Handy neu gestartet.