我向上/向下/向左或向右移动/滚动谷歌地图，因为它向后移动当前位置

Question

I have this problem that I can't move from my current location marker point to see the rest of the map.

For an example, let's say I am at Silicon Valley. And I can see the marker too. Everything looks perfect so far. But when I try to navigate (up, down, left, right) the map, it again brings me back to my current location.

It is automatically and forcefully brings me back to my current location not allowing me to see other places around

here is my code for the MapActivity.

package com.example.jananathbanuka.sliitshuttle;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Build;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.support.v4.content.ContextCompat;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import com.firebase.geofire.GeoFire;
import com.firebase.geofire.GeoLocation;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptor;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;

public class DriversMap extends FragmentActivity implements
        OnMapReadyCallback,
        GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener,
        LocationListener {

    private GoogleMap mMap;
     GoogleApiClient googleApiClient;
     Location lastLocation;
     LocationRequest locationRequest;
     Marker currentUserLocationMarker;
    private static final int REQUEST_USER_LOCATION_CODE = 99;

    private Button back;
    private FirebaseAuth mAuth;
    private FirebaseUser currentUser;

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

        mAuth = FirebaseAuth.getInstance();
        currentUser = mAuth.getCurrentUser();

        back = (Button)findViewById(R.id.back);

        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M){
            checkUserLocationPermission();
        }

        back.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(getApplicationContext(), StudentProfile.class);
                startActivity(intent);
                finish();
            }
        });


        // Obtain the SupportMapFragment and get notified when the map is ready to be used.
        SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
                .findFragmentById(R.id.map);
        mapFragment.getMapAsync(this);
    }


    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {

            buildGoogleApiClient();
            mMap.setMyLocationEnabled(true);
        }

    }

    public boolean checkUserLocationPermission(){
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            if(ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.ACCESS_FINE_LOCATION)){
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_USER_LOCATION_CODE);
            }else{
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_USER_LOCATION_CODE);
            }
            return false;
        }else {
            return true;
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        switch (requestCode){
            case REQUEST_USER_LOCATION_CODE:
                if(grantResults.length >0 && grantResults[0] == PackageManager.PERMISSION_GRANTED){
                    if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
                        if(googleApiClient == null){
                            buildGoogleApiClient();
                        }
                        mMap.setMyLocationEnabled(true);
                    }
                }else{ //permission denied
                    Toast.makeText(this, "Permission Denied", Toast.LENGTH_SHORT).show();
                }
                return;
        }

    }



    @Override
    public void onConnected(@Nullable Bundle bundle) {

        locationRequest = new LocationRequest();
        locationRequest.setInterval(1000);
        locationRequest.setFastestInterval(1000);
        locationRequest.setPriority(locationRequest.PRIORITY_HIGH_ACCURACY);


        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {

            LocationServices.FusedLocationApi.requestLocationUpdates(googleApiClient, locationRequest, this);
        }

    }

    @Override
    public void onConnectionSuspended(int i) {

    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

    }

    @Override
    public void onPointerCaptureChanged(boolean hasCapture) {

    }

    @Override
    public void onLocationChanged(Location location) {

        lastLocation = location;

        if(currentUserLocationMarker != null){ //set to some other location
            currentUserLocationMarker.remove();
        }

        LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
        MarkerOptions markerOptions = new MarkerOptions();
        markerOptions.position(latLng);
        markerOptions.title("Shutter is Here");
        markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE));

        currentUserLocationMarker = mMap.addMarker(markerOptions);

        float zoomLevel = 16.0f;
        mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng, zoomLevel));
//        mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
//        mMap.animateCamera(CameraUpdateFactory.zoomTo(15));

        String driverID = FirebaseAuth.getInstance().getCurrentUser().getUid();
        DatabaseReference driverDatBaseReference = FirebaseDatabase.getInstance()
                .getReference().child("On the Move");

        GeoFire geoFire = new GeoFire(driverDatBaseReference);
        geoFire.setLocation(driverID, new GeoLocation(location.getLatitude(), location.getLongitude()), new GeoFire.CompletionListener() {
            @Override
            public void onComplete(String key, DatabaseError error) {
                System.out.println("================ UPDATED!!!");
            }
        });

    }

    protected synchronized void buildGoogleApiClient() {
        googleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();

        googleApiClient.connect();
    }

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

        disconnectDriver();
    }

    private void disconnectDriver() {
        String driverID = FirebaseAuth.getInstance().getCurrentUser().getUid();
        DatabaseReference driverDatBaseReference = FirebaseDatabase.getInstance()
                .getReference().child("On the Move");

        GeoFire geoFire = new GeoFire(driverDatBaseReference);
        geoFire.removeLocation(driverID);
    }
}

Can someone tell me by looking at my code, why is it happening?

Answer 1

By adding the line locationRequest.setInterval(1000); you are asking to be updated of the users' location every 1 second.

This results in your onLocationChanged(Location location) method -where you call mMap.moveCamera - being called every second.