小编jay*_*dhi的帖子

  package com.jaygandhi.map3;

 import android.Manifest;
 import android.content.pm.PackageManager;
 import android.location.Location;
 import android.os.Build;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.app.FragmentActivity;
 import android.os.Bundle;
 import android.support.v4.content.ContextCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.widget.Toast;

 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.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;



public class MapsActivity extends AppCompatActivity
        implements OnMapReadyCallback,
        GoogleApiClient.ConnectionCallbacks,
        GoogleApiClient.OnConnectionFailedListener,
        LocationListener
{

    GoogleMap mGoogleMap;
    SupportMapFragment mapFrag;
    LocationRequest mLocationRequest;
    GoogleApiClient mGoogleApiClient;
    Location mLastLocation;
    Marker mCurrLocationMarker;

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

        if …