android - 我想在实时 FIrebase 中存储纬度和经度....并具有以下代码

Question

这是我在android中查看当前位置的纬度和经度的代码。我想在 firebase 中保存位置。我删除了查看位置的代码，从而将位置存储在数据库中。我想将当前位置保存到 firebase 中，稍后再检索。

public class MapsActivity extends AppCompatActivity {

    private GoogleMap mMap;
    private FusedLocationProviderClient client;
    private LatLng lng;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_maps);

requestPermission();
        client = LocationServices.getFusedLocationProviderClient(this);

        Button button = findViewById(R.id.button);
        EditText EditText  = findViewById(R.id.ed);

        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (ActivityCompat.checkSelfPermission(MapsActivity.this, ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(MapsActivity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                    // TODO: Consider calling
                    //    ActivityCompat#requestPermissions
                    // here to request the missing permissions, and then overriding
                    //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                    //                                          int[] grantResults)
                    // to handle the case where the user grants the permission. See the documentation
                    // for ActivityCompat#requestPermissions for more details.
                    return;
                }
                client.getLastLocation().addOnSuccessListener(MapsActivity.this, new OnSuccessListener<Location>() {
                    @Override
                    public void onSuccess(Location location) {
                        if(location!=null)
                        {


                        }
                    }
                });
            }
        });

    }
public void requestPermission()
{

ActivityCompat.requestPermissions(this,new String[]{ACCESS_FINE_LOCATION},1);

}

}

Answer 1

首先，注册到firebase Console 并获取JSON 数据，然后您可以指向Database Reference 及其对应的child。

if(location!=null)
{
    DatabaseReference mDatabase;
    mDatabase = FirebaseDatabase.getInstance().getReference();
    mDatabase.child("Location").child("Lat").setValue(location.latitude);
}