Android Studio谷歌地图在Android设备上工作，但在Emulator上不工作

Question

我正在尝试使用从谷歌云平台获得的谷歌地图API密钥来获取我在Android Studio中的当前位置。如果我在手机上运行该应用程序，一切都会好起来。如果我在模拟器上运行该应用程序，我的位置似乎是Google Plex，如下图所示(这将是完全错误的(：模拟器应用程序显示错误的位置

我不确定是因为API密钥还是代码/persmission/GPS中的错误？我从一个教程中获得了代码，但现在看来谷歌客户端已经被弃用了(不确定这是否是问题所在(。我相信这是因为模拟器，但我不知道为什么。我目前正在使用Pixel 2 API 26。

我将在这里显示代码：

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="com.google.android.providers.gsf.permisson.READ_GSERVICES"/>
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="@string/google_maps_key" />

BUILD.GRADLE:

implementation 'com.google.android.gms:play-services-maps:17.0.1'
implementation 'com.google.android.gms:play-services-location:18.0.0'

映射活动：

public class GoogleMapsActivity extends FragmentActivity implements OnMapReadyCallback,
GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener,
LocationListener {
private GoogleMap mMap;
private GoogleApiClient googleClient;
private LocationRequest locationRequest;
private Location ultimateLocation;
private Marker markerCurrentLocation;
private static final int Request_User_Location_Code = 90;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_google_maps);
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
{
checkLocationPermission();
}
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
assert mapFragment != null;
mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(@NotNull GoogleMap googleMap) {
mMap = googleMap;
//current location
if(ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED){
createGoogleApiClient();
mMap.setMyLocationEnabled(true);
}

}
protected synchronized void createGoogleApiClient() { // ok
googleClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
googleClient.connect();
}
@Override
public void onLocationChanged(@NonNull Location location) { // ok
ultimateLocation = location;
if (markerCurrentLocation !=null)
{
markerCurrentLocation.remove();;
}
LatLng coordinates = new LatLng(location.getLatitude(), location.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(coordinates);
markerOptions.title("Current Location");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
markerCurrentLocation = mMap.addMarker(markerOptions);
mMap.moveCamera(CameraUpdateFactory.newLatLng(coordinates));
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(location.getLatitude(), location.getLongitude()), 17.0f));
if(googleClient!=null)
{
LocationServices.FusedLocationApi.removeLocationUpdates(googleClient,this);
}
else
{
Toast.makeText(this, "NULLLLLLLL", Toast.LENGTH_SHORT).show();
}
}

@Override
public void onConnected(@Nullable Bundle bundle) { // ok
locationRequest = new LocationRequest();
locationRequest.setInterval(1100);
locationRequest.setFastestInterval(1100);
locationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
LocationServices.FusedLocationApi.requestLocationUpdates(googleClient, locationRequest, this);
}
}
public boolean checkLocationPermission(){ // ok
boolean ret;
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);
}
ret = false;
}
else
{
ret = true;
}
return ret;
}
//ok
@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(googleClient==null)
{
createGoogleApiClient();;
}
mMap.setMyLocationEnabled(true);
}
}
else
{
Toast.makeText(this, " PERMISSION DENIED", Toast.LENGTH_SHORT).show();
}
return ;
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
}

}

Answer 1

只需转到Emulator控件(三点菜单(，在Location选项卡中，固定地图中的任何位置，然后单击Set Location。

然后验证您是否在应用程序中收到了预期的位置。