Warning: file_get_contents(/data/phpspider/zhask/data//catemap/3/android/193.json): failed to open stream: No such file or directory in /data/phpspider/zhask/libs/function.php on line 167

Warning: Invalid argument supplied for foreach() in /data/phpspider/zhask/libs/tag.function.php on line 1116

Notice: Undefined index: in /data/phpspider/zhask/libs/function.php on line 180

Warning: array_chunk() expects parameter 1 to be array, null given in /data/phpspider/zhask/libs/function.php on line 181
地图不向用户开放';Android中的位置_Android_Google Maps Android Api 2 - Fatal编程技术网

地图不向用户开放';Android中的位置

地图不向用户开放';Android中的位置,android,google-maps-android-api-2,Android,Google Maps Android Api 2,每当我运行我的Android代码,我的地图在我的真实设备上打开时(不是在模拟器上),它不会指向任何地方,它只是显示缩小的世界地图,而不是用户的位置。我尝试了各种各样的组合来实现这一点,但没有任何帮助 下面是我试图获取用户的行为的代码,但行为仍然保持不变。我尝试将GPS_服务改为网络_提供商,但仍然没有任何帮助。这里的解决方案可能是什么 我在这里测试的设备是1加3 Manifest.xml: <uses-permission android:name="android.permission.

每当我运行我的Android代码,我的地图在我的真实设备上打开时(不是在模拟器上),它不会指向任何地方,它只是显示缩小的世界地图,而不是用户的位置。我尝试了各种各样的组合来实现这一点,但没有任何帮助

下面是我试图获取用户的行为的代码,但行为仍然保持不变。我尝试将GPS_服务改为网络_提供商,但仍然没有任何帮助。这里的解决方案可能是什么

我在这里测试的设备是1加3

Manifest.xml:

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />

地图活动性:

    public class MapsActivity extends FragmentActivity implements OnMapReadyCallback {

    private GoogleMap mMap;
    LocationManager locationManager;
    LocationListener locationListener;

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);

        if(requestCode == 1) {

            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

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

                    locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);

                }

            }

        }

    }

    @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);

    }


    /**
     * Manipulates the map once available.
     * This callback is triggered when the map is ready to be used.
     * This is where we can add markers or lines, add listeners or move the camera. In this case,
     * we just add a marker near Sydney, Australia.
     * If Google Play services is not installed on the device, the user will be prompted to install
     * it inside the SupportMapFragment. This method will only be triggered once the user has
     * installed Google Play services and returned to the app.
     */
    @Override
    public void onMapReady(GoogleMap googleMap) {
        mMap = googleMap;

        // mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);

        locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE);

        locationListener = new LocationListener() {
            @Override
            public void onLocationChanged(Location location) {

                // Add a marker on user's location and move the camera.
                LatLng yourLocation = new LatLng(location.getLatitude(), location.getLongitude());

                mMap.clear();
                mMap.addMarker(new MarkerOptions().position(yourLocation).title("Your Location"));
                mMap.moveCamera(CameraUpdateFactory.newLatLng(yourLocation));

                // To get the address of the user location.
                Geocoder geocoder = new Geocoder(getApplicationContext(), Locale.getDefault());

                try {

                    // 1 - represents only one location is required.
                    List<Address> listAddresses = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);

                    if(listAddresses != null && listAddresses.size() > 0) {

                        Log.i("PlaceInfo", listAddresses.get(0).toString());

                        String address = "";

                        if(listAddresses.get(0).getSubThoroughfare() != null) {

                            address += listAddresses.get(0).getSubThoroughfare() + " ";

                        }

                        if(listAddresses.get(0).getThoroughfare() != null) {

                            address += listAddresses.get(0).getThoroughfare() + ", ";

                        }

                        if(listAddresses.get(0).getLocality() != null) {

                            address += listAddresses.get(0).getLocality() + ", ";

                        }

                        if(listAddresses.get(0).getPostalCode() != null) {

                            address += listAddresses.get(0).getPostalCode() + ", ";

                        }

                        if(listAddresses.get(0).getCountryName() != null) {

                            address += listAddresses.get(0).getCountryName();

                        }

                        Toast.makeText(MapsActivity.this, address, Toast.LENGTH_LONG).show();
                        Log.i("address", address);
                    }

                } catch (IOException e) {

                    e.printStackTrace();

                }

            }

            @Override
            public void onStatusChanged(String s, int i, Bundle bundle) {

            }

            @Override
            public void onProviderEnabled(String s) {

            }

            @Override
            public void onProviderDisabled(String s) {

            }
        };

        if(Build.VERSION.SDK_INT < 23) {

            locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);

        }
        else {

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

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

            } else {

                locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);

                // Get the users's current location.
                Location lastKnownLocation = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

                LatLng yourLocation = new LatLng(lastKnownLocation.getLatitude(), lastKnownLocation.getLongitude());
                mMap.clear();

                mMap.addMarker(new MarkerOptions().position(yourLocation).title("Your Location"));
                mMap.moveCamera(CameraUpdateFactory.newLatLng(yourLocation));

            }
        }
    }
}
公共类MapsActivity扩展了FragmentActivity在MapreadyCallback上的实现{
私有谷歌地图;
地点经理地点经理;
LocationListener LocationListener;
@凌驾
public void onRequestPermissionsResult(int-requestCode,@NonNull-String[]permissions,@NonNull-int[]grantResults){
super.onRequestPermissionsResult(请求代码、权限、授权结果);
if(requestCode==1){
if(grantResults.length>0&&grantResults[0]==PackageManager.PERMISSION\u已授予){
if(ContextCompat.checkSelfPermission(此,Manifest.permission.ACCESS\u FINE\u位置)==PackageManager.permission\u已授予){
locationManager.RequestLocationUpdate(locationManager.NETWORK\u提供程序,0,0,locationListener);
}
}
}
}
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_映射);
//获取SupportMapFragment,并在地图准备好使用时收到通知。
SupportMapFragment mapFragment=(SupportMapFragment)getSupportFragmentManager()
.findFragmentById(R.id.map);
getMapAsync(这个);
}
/**
*一旦可用,就可以操纵贴图。
*当映射准备好使用时,将触发此回调。
*这是我们可以添加标记或线条、添加侦听器或移动摄影机的地方。在这种情况下,
*我们只是在澳大利亚悉尼附近加了一个标记。
*如果设备上未安装Google Play服务,系统将提示用户安装
*它位于SupportMapFragment内。此方法仅在用户
*已安装Google Play服务并返回应用程序。
*/
@凌驾
4月1日公开作废(谷歌地图谷歌地图){
mMap=谷歌地图;
//mMap.setMapType(GoogleMap.MAP\u TYPE\u HYBRID);
locationManager=(locationManager)this.getSystemService(Context.LOCATION\u服务);
locationListener=新locationListener(){
@凌驾
已更改位置上的公共无效(位置){
//在用户位置上添加标记并移动相机。
LatLng yourLocation=新LatLng(location.getLatitude(),location.getLongitude());
mMap.clear();
mMap.addMarker(新的MarkerOptions().position(yourLocation).title(yourLocation));
mMap.moveCamera(CameraUpdateFactory.newLatLng(您的位置));
//获取用户位置的地址。
Geocoder Geocoder=新的Geocoder(getApplicationContext(),Locale.getDefault());
试一试{
//1-表示只需要一个位置。
List listAddresses=geocoder.getFromLocation(location.getLatitude(),location.getLatitude(),1);
if(listAddresses!=null&&listAddresses.size()>0){
Log.i(“PlaceInfo”,listAddresses.get(0.toString());
字符串地址=”;
if(listAddresses.get(0).GetSubThroughure()!=null){
address+=listAddresses.get(0).GetSubThroughure()+“”;
}
if(listAddresses.get(0.GetThroughure()!=null){
address+=listAddresses.get(0.GetThroughure()+“,”;
}
if(listAddresses.get(0.GetLocation()!=null){
address+=listAddresses.get(0).GetLocation()+“,”;
}
if(listAddresses.get(0.getPostalCode()!=null){
address+=listAddresses.get(0).getPostalCode()+“,”;
}
if(listAddresses.get(0).getCountryName()!=null){
address+=listAddresses.get(0.getCountryName();
}
Toast.makeText(MapsActivity.this,address,Toast.LENGTH_LONG.show();
Log.i(“地址”,地址);
}
}捕获(IOE异常){
e、 printStackTrace();
}
}
@凌驾
状态已更改的公共void(字符串s、int i、Bundle){
}
@凌驾
已提供已启用的公共void(字符串s){
}
@凌驾
公共无效onProviderDisabled(字符串s){
}
};
如果(Build.VERSION.SDK_INT<23){
locationManager.RequestLocationUpdate(locationManager.NETWORK\u提供程序,0,0,locationListener);
}
否则{
if(ContextCompat.checkSelfPermission(this,Manifest.permission.ACCESS\u FINE\u LOCATION)!=PackageManager.permission\u已授予){
ActivityCompat.requestPermissions(这个新字符串[]{Manifest.permission.ACCESS\u FINE\u LOCATION},1);
}否则{
locationManager.RequestLocationUpdate(locationManager.NETWORK\u提供程序,0,0,locationListener);
//获取用户的当前位置。
位置lastKnownLocation=locationManager.getLastKn