Question

我正在将Android Studio 3.3.2与sdk版本28一起使用。而且我需要帮助来实时保存位置平均纬度和用户的位置。

此代码是他们更新的Firebase的新实现。由于数据库已更改其引用。使用身份验证时，会将用户ID保存到数据库中，但是使用Geofire检索数据时，则不会将其保存到Firebase数据库中

public class DriverMapActivity extends FragmentActivity implements OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, com.google.android.gms.location.LocationListener {

    private GoogleMap mMap;
    GoogleApiClient mGoogleApiClient;
    Location mLastLocation;
    LocationRequest mLocationRequest;
    private DatabaseReference mDatabase;
    private Button mLogout;

    @Override
    public void onLocationChanged(Location location) {
        mLastLocation = location;
        LatLng latLng = new LatLng(location.getLatitude(),location.getLongitude());
        mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
        mMap.animateCamera(CameraUpdateFactory.zoomTo(11));
        String userId = FirebaseAuth.getInstance().getCurrentUser().getUid();
        mDatabase = FirebaseDatabase.getInstance().getReference("DriversAvailable");
        GeoFire geoFire = new GeoFire(mDatabase);
        geoFire.setLocation(userId, new GeoLocation(location.getLatitude(), location.getLongitude()));
     }

    @Override
    public void onConnected(@Nullable Bundle bundle) {
        mLocationRequest = new LocationRequest();
        mLocationRequest.setInterval(1000);
        mLocationRequest.setFastestInterval(1000);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
    }

    @Override
    protected void onStop() {
        super.onStop();

        String userId = FirebaseAuth.getInstance().getCurrentUser().getUid();
        mDatabase = FirebaseDatabase.getInstance().getReference("DriversAvailable");

        GeoFire geoFire = new GeoFire(mDatabase);
        geoFire.removeLocation(userId);
    }    
}

我希望在我获得用户的纬度和经度时创建一个DriversAvailable列，该列将在用户每次移动时进行更新。

使用sdk版本28时如何修复GeoFire以在实时Firebase数据库中保存位置

0 个答案: