Android 谷歌地图API安卓设置最后位置错误

因此，我试图按照教程中的最后一个位置，如图所示

我没有得到一个标记被添加到片段中，这表明标记正在正确更新。我已经在我的主要项目中尝试过了，但它不起作用。因此，我试着严格按照教程的内容进行一个全新的项目，看看是否可以解决这个问题

我想知道这是否是我正在使用的仿真器的问题（肯定是使用GoogleAPI版本6.0），因为我也无法正确运行示例项目

下面是我使用过的文件和生成的错误日志 MapTesting.java

package dominic.maptesting;

import android.Manifest;
import android.content.pm.PackageManager;
import android.location.Location;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.os.Bundle;
import android.util.Log;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
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.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

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

 private GoogleMap mMap;
 private GoogleApiClient mGoogleApiClient;
 private Location mLastLocation;

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

  if (mGoogleApiClient == null) {
   mGoogleApiClient = new GoogleApiClient.Builder(this)
    .addConnectionCallbacks(this)
    .addOnConnectionFailedListener(this)
    .addApi(LocationServices.API)
    .build();

  }

 }

 @Override
 public void onConnected(Bundle connectionHint) {
  if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(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;
  }
  mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
   mGoogleApiClient);
  if (mLastLocation != null) {
   LatLng test = new LatLng(mLastLocation.getLatitude(), mLastLocation.getLongitude());
   mMap.addMarker(new MarkerOptions().position(test).title("Marker Test"));
   mMap.moveCamera(CameraUpdateFactory.newLatLng(test));

  } else {}

 }

 @Override
 public void onConnectionSuspended(int i) {

 }

 protected void onStart() {
  mGoogleApiClient.connect();
  super.onStart();
 }

 protected void onStop() {
  mGoogleApiClient.disconnect();
  super.onStop();
 }


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

 }

 @Override
 public void onConnectionFailed(ConnectionResult connectionResult) {

 }
}

Activity_Map.xml

<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="dominic.maptesting.MapsActivity" />

---

非常感谢您的任何建议或帮助。如果您仔细看到下面的代码块导致了问题，我会非常坚持这一点，并且我是android的新手

if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(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;
  }

在Android 6.0上，此块将返回true，函数将在不执行进一步代码的情况下退出。原因是您的目标是Android 6.0版本，并且您没有处理运行时权限。请阅读本文以了解Android运行时权限

---

仍然在使用运行时权限后，您可能在地图上看不到标记，因为

LocationServices.FusedLocationApi.getLastLocation

可能只返回null，因此您也必须处理该逻辑。

尝试过关于运行时权限的教程后，即使处理了getLastLocation为空。有什么想法吗

01-26 17:21:51.228 3427-3427/? E/memtrack: Couldn't load memtrack module (No such file or directory)
01-26 17:21:51.228 3427-3427/? E/android.os.Debug: failed to load memtrack module: -2
01-26 17:21:51.255 1299-1339/? E/InputDispatcher: channel 'b6f8f72 dominic.maptesting/dominic.maptesting.MapsActivity (server)' ~ Channel is unrecoverably broken and will be disposed!
01-26 17:21:51.991 959-959/? E/audio_hw_generic: Error opening input stream format 1, channel_mask 0010, sample_rate 16000
01-26 17:21:53.175 3440-3440/? E/memtrack: Couldn't load memtrack module (No such file or directory)
01-26 17:21:53.175 3440-3440/? E/android.os.Debug: failed to load memtrack module: -2
01-26 17:21:53.244 3436-3436/? E/memtrack: Couldn't load memtrack module (No such file or directory)
01-26 17:21:53.244 3436-3436/? E/android.os.Debug: failed to load memtrack module: -2
01-26 17:21:53.725 1598-1872/? E/Surface: getSlotFromBufferLocked: unknown buffer: 0xb4093960
01-26 17:21:54.666 948-2693/? E/SurfaceFlinger: ro.sf.lcd_density must be defined as a build property

if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(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;
  }