如何获取我的代码以提供我当前的位置？
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【中文标题】如何获取我的代码以提供我当前的位置？【英文标题】：How do i get my code to give my current location? 【发布时间】：2019-12-23 04:30:00 【问题描述】：我试图让我的代码放大并在我打开地图活动后给我我的确切位置，但相反，我得到了一张显示非洲地图的地图。
我写了一些从网上教程中得到的代码，但没有一个能成功地给出我想要的。
我尝试使用这个link
也试过用这个YouTube video
MapActivity.java：
package com.kiki.doctorlocation;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.fragment.app.FragmentActivity;
import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
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.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 java.io.IOException;
import java.util.List;
import java.util.Locale;
public class MapActivity extends FragmentActivity implements
OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener, LocationListener
public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
GoogleApiClient mGoogleApiClient;
Location mLastLocation;
Marker mCurrLocationMarker;
LocationRequest mLocationRequest;
private GoogleMap mMap;;
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_map);
@Override
public void onMapReady(GoogleMap googleMap)
mMap = googleMap;
mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
mMap.getUiSettings().setZoomControlsEnabled(true);
mMap.getUiSettings().setZoomGesturesEnabled(true);
mMap.getUiSettings().setCompassEnabled(true);
//Initialize Google Play Services
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED)
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
else
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
private void buildGoogleApiClient()
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiClient.connect();
@Override
public void onConnected(@Nullable Bundle bundle)
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(1000);
mLocationRequest.setFastestInterval(1000);
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED)
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient,
mLocationRequest, this);
@Override
public void onConnectionSuspended(int i)
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult)
@Override
public void onLocationChanged(Location location)
mLastLocation = location;
if (mCurrLocationMarker != null)
mCurrLocationMarker.remove();
//Showing Current Location Marker on Map
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
LocationManager locationManager = (LocationManager)
getSystemService(Context.LOCATION_SERVICE);
String provider = locationManager.getBestProvider(new Criteria(), true);
if (ActivityCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION)
!= PackageManager.PERMISSION_GRANTED)
return;
Location locations = locationManager.getLastKnownLocation(provider);
List<String> providerList = locationManager.getAllProviders();
if (null != locations && null != providerList && providerList.size() > 0)
double longitude = locations.getLongitude();
double latitude = locations.getLatitude();
Geocoder geocoder = new Geocoder(getApplicationContext(),
Locale.getDefault());
try
List<Address> listAddresses = geocoder.getFromLocation(latitude,
longitude, 1);
if (null != listAddresses && listAddresses.size() > 0)
String state = listAddresses.get(0).getAdminArea();
String country = listAddresses.get(0).getCountryName();
String subLocality = listAddresses.get(0).getSubLocality();
markerOptions.title("" + latLng + "," + subLocality + "," + state
+ "," + country);
catch (IOException e)
e.printStackTrace();
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_BLUE));
mCurrLocationMarker = mMap.addMarker(markerOptions);
mMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
mMap.animateCamera(CameraUpdateFactory.zoomTo(11));
if (mGoogleApiClient != null)
LocationServices.FusedLocationApi.removeLocationUpdates(mGoogleApiClient,
this);
public boolean checkLocationPermission()
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,
MY_PERMISSIONS_REQUEST_LOCATION);
else
ActivityCompat.requestPermissions(this,
new String[]Manifest.permission.ACCESS_FINE_LOCATION,
MY_PERMISSIONS_REQUEST_LOCATION);
return false;
else
return true;
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode)
case MY_PERMISSIONS_REQUEST_LOCATION:
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED)
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED)
if (mGoogleApiClient == null)
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
else
Toast.makeText(this, "permission denied",
Toast.LENGTH_LONG).show();
return;
我希望当我运行我的代码时，我的地图会放大并给出我当前的确切位置。代码没有错误，这就是我需要帮助的原因。
【问题讨论】：
【参考方案1】：我会尽力提供帮助。我假设你的 gradle 中有所有 必要的库。检查你是否有
implementation 'com.google.android.gms:play-services-maps:16.1.0'
implementation 'com.google.android.gms:play-services-location:16.0.0'
implementation 'com.google.android.libraries.places:places:1.0.0'
同时确认您是否拥有以下权限（除了您可能拥有的其他权限之外）
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
在较新的 Android 版本上，您可能需要在运行时请求权限。您可以在活动中添加存根。
public static boolean hasPermissions(Context context, String... permissions)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && context != null && permissions != null)
for (String permission : permissions)
if (ActivityCompat.checkSelfPermission(context, permission) != PackageManager.PERMISSION_GRANTED)
return false;
return true;
//调用上述函数
String[] PERMISSIONS = Manifest.permission.INTERNET,Manifest.permission.ACCESS_COARSE_LOCATION,
Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.READ_EXTERNAL_STORAGE,
Manifest.permission.CAMERA ;
if (!hasPermissions(this, PERMISSIONS))
ActivityCompat.requestPermissions(this, PERMISSIONS, 1);
您的活动可能如下所示。
import android.Manifest;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.os.Build;
import android.os.Bundle;
import android.os.Looper;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GoogleApiAvailability;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationCallback;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationResult;
import com.google.android.gms.location.LocationServices;
import com.google.android.gms.maps.CameraUpdate;
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.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.libraries.places.api.Places;
import com.google.android.libraries.places.api.model.Place;
import com.google.android.libraries.places.api.model.TypeFilter;
import com.google.android.libraries.places.widget.AutocompleteSupportFragment;
import com.google.android.libraries.places.widget.listener.PlaceSelectionListener;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
public class SetPickUpLocation extends FragmentActivity implements OnMapReadyCallback
SupportMapFragment mapFragment;
private GoogleMap mMap;
private GoogleMap.OnCameraIdleListener onCameraIdleListener;
private TextView resutText;
private FusedLocationProviderClient fusedLocationProviderClient;
private static final int MY_PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION = 5445;
private Location currentLocation;
public static String latitude = null, longitude = null, location = null, area = null;
private boolean firstTimeFlag = true;
Button setLocation;
View mapView;
AutocompleteSupportFragment autocompleteFragment;
String TAG = "Google_Places";
int AUTOCOMPLETE_REQUEST_CODE = 1;
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.set_pickup_location);
resutText = (TextView) findViewById(R.id.dragg_result);
setLocation = (Button) findViewById(R.id.setLocation);
autocompleteFragment = (AutocompleteSupportFragment)
getSupportFragmentManager().findFragmentById(R.id.autocomplete_fragment);
mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
mapView = mapFragment.getView();
Toast.makeText(SetPickUpLocation.this, ConstantValues.DRAG_MAP_MARKER, Toast.LENGTH_SHORT).show();
configureCameraIdle();
Places.initialize(getApplicationContext(), ConstantValues.GOOGLE_API_KEY);
setLocation.setOnClickListener(new View.OnClickListener()
@Override
public void onClick(View v)
if (latitude != null && longitude != null)
//you can put your logic here
else
//you can put your logic here
);
autocompleteFragment.setPlaceFields(Arrays.asList(Place.Field.ID, Place.Field.NAME , Place.Field.LAT_LNG));
//autocompleteFragment.setTypeFilter(TypeFilter.REGIONS);
autocompleteFragment.setCountry("KE");
autocompleteFragment.setOnPlaceSelectedListener(new PlaceSelectionListener()
@Override
public void onPlaceSelected(Place place)
// TODO: Get info about the selected place.
//Log.d(TAG , place.getName() + ", " + place.getId());
if(mMap != null)
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(place.getLatLng(), 16);
mMap.animateCamera(cameraUpdate);
autocompleteFragment.setText("");
//
//mMap.mo
@Override
public void onError(Status status)
// TODO: Handle the error.
Log.d(TAG , "An error occurred: " + status);
);
@Override
protected void onStop()
super.onStop();
if (fusedLocationProviderClient != null)
fusedLocationProviderClient.removeLocationUpdates(mLocationCallback);
@Override
protected void onResume()
super.onResume();
if (isGooglePlayServicesAvailable())
fusedLocationProviderClient = LocationServices.getFusedLocationProviderClient(this);
startCurrentLocationUpdates();
@Override
protected void onDestroy()
super.onDestroy();
fusedLocationProviderClient = null;
mMap = null;
private void configureCameraIdle()
onCameraIdleListener = new GoogleMap.OnCameraIdleListener()
@Override
public void onCameraIdle()
LatLng latLng = mMap.getCameraPosition().target;
Geocoder geocoder = new Geocoder(SetPickUpLocation.this);
try
List<Address> addressList = geocoder.getFromLocation(latLng.latitude, latLng.longitude, 1);
if (addressList != null && addressList.size() > 0)
String locality = addressList.get(0).getAddressLine(0);
String country = addressList.get(0).getCountryName();
latitude = Double.toString(latLng.latitude);
longitude = Double.toString(latLng.longitude);
if (!locality.isEmpty() && !country.isEmpty())
resutText.setText(locality);
location = locality;
try
String city = addressList.get(0).getAdminArea();
if(!city.isEmpty())
area = city;
catch (Exception e)
catch (IOException e)
e.printStackTrace();
;
@Override
public void onMapReady(GoogleMap googleMap)
mMap = googleMap;
mMap.setOnCameraIdleListener(onCameraIdleListener);
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;
mMap.setMyLocationEnabled(true);
if (mapView != null &&
mapView.findViewById(Integer.parseInt("1")) != null)
// Get the button view
View locationButton = ((View) mapView.findViewById(Integer.parseInt("1")).getParent()).findViewById(Integer.parseInt("2"));
// and next place it, on bottom right (as Google Maps app)
RelativeLayout.LayoutParams layoutParams = (RelativeLayout.LayoutParams)
locationButton.getLayoutParams();
// position on right bottom
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP, 0);
layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
layoutParams.setMargins(0, 0, 100, 330);
private final LocationCallback mLocationCallback = new LocationCallback()
@Override
public void onLocationResult(LocationResult locationResult)
super.onLocationResult(locationResult);
if (locationResult.getLastLocation() == null)
return;
currentLocation = locationResult.getLastLocation();
if (firstTimeFlag && mMap != null)
animateCamera(currentLocation);
firstTimeFlag = false;
//showMarker(currentLocation);
;
private void startCurrentLocationUpdates()
LocationRequest locationRequest = LocationRequest.create();
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setInterval(3000);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M)
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
ActivityCompat.requestPermissions(SetPickUpLocation.this,
new String[]Manifest.permission.ACCESS_FINE_LOCATION,
MY_PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION);
return;
fusedLocationProviderClient.requestLocationUpdates(locationRequest, mLocationCallback, Looper.myLooper());
private boolean isGooglePlayServicesAvailable()
GoogleApiAvailability googleApiAvailability = GoogleApiAvailability.getInstance();
int status = googleApiAvailability.isGooglePlayServicesAvailable(this);
if (ConnectionResult.SUCCESS == status)
return true;
else
if (googleApiAvailability.isUserResolvableError(status))
Toast.makeText(this, "Please Install google play services to use this application", Toast.LENGTH_LONG).show();
return false;
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults)
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode == MY_PERMISSIONS_REQUEST_ACCESS_FINE_LOCATION)
if (grantResults[0] == PackageManager.PERMISSION_DENIED)
Toast.makeText(this, "Permission denied by uses", Toast.LENGTH_SHORT).show();
else if (grantResults[0] == PackageManager.PERMISSION_GRANTED)
startCurrentLocationUpdates();
private void animateCamera(@NonNull Location location)
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(getCameraPositionWithBearing(latLng)));
@NonNull
private CameraPosition getCameraPositionWithBearing(LatLng latLng)
return new CameraPosition.Builder().target(latLng).zoom(16).build();
XML 布局（您可以使用自己的 ViewGroups）
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_
android:layout_
tools:context=".orders.SetPickUpLocation">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_
android:layout_ />
<android.support.v7.widget.CardView
android:id="@+id/idCardView"
android:layout_
android:layout_
android:layout_alignParentTop="true"
app:cardCornerRadius="4dp">
<fragment
android:id="@+id/autocomplete_fragment"
android:name="com.google.android.libraries.places.widget.AutocompleteSupportFragment"
android:layout_
android:layout_ />
</android.support.v7.widget.CardView>
<ImageView
android:layout_
android:layout_
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:src="@drawable/ic_google_map_marker"
android:text="TextView" />
<LinearLayout
android:layout_
android:layout_
android:layout_alignParentBottom="true"
android:background="#ffffff"
android:orientation="vertical"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin">
<LinearLayout
android:layout_
android:layout_
android:orientation="horizontal"
android:paddingTop="@dimen/activity_horizontal_margin"
android:paddingBottom="@dimen/activity_horizontal_margin"
android:weightSum="3">
<ImageView
android:layout_
android:layout_
android:layout_weight="0.2"
android:gravity="center_vertical"
android:src="@drawable/ic_google_map_marker" />
<TextView
android:id="@+id/dragg_result"
android:layout_
android:layout_
android:layout_gravity="center_vertical"
android:layout_weight="2.8"
android:fontFamily="@font/museo"
android:gravity="left"
android:paddingLeft="3dp"
android:text="Select this location"
android:textColor="#000"
android:textSize="18dp" />
</LinearLayout>
<Button
android:id="@+id/setLocation"
style="?android:attr/borderlessButtonStyle"
android:layout_
android:layout_
android:layout_marginBottom="@dimen/activity_horizontal_margin"
android:fontFamily="@font/museo"
android:text="Select this location"
android:textColor="#ffffff"
android:textSize="18sp"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
我希望这会有所帮助，并且还可以使用您自己的图标/可绘制对象，因为我没有在此处包含它们。
【讨论】：
【参考方案2】：所以之前的答案对我不起作用，所以我决定另辟蹊径，这是对我有用的代码
MapActivity.java
import android.app.Dialog;
import android.content.pm.PackageManager;
import android.location.Address;
imsport android.location.Geocoder;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GoogleApiAvailability;
import com.google.android.gms.maps.CameraUpdate;
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.MarkerOptions;
import java.io.IOException;
import java.util.List;
public class MapActivity extends AppCompatActivity implements OnMapReadyCallback
private GoogleMap mMap;
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
if (GSA())
Toast.makeText(this, "Services perfect", Toast.LENGTH_SHORT).show();
setContentView(R.layout.activity_map);
initMap();
else
private void initMap()
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync((OnMapReadyCallback) this);
public boolean GSA()
GoogleApiAvailability googleApiAvailability = GoogleApiAvailability.getInstance();
int isAvailable = googleApiAvailability.isGooglePlayServicesAvailable(this);
if (isAvailable == ConnectionResult.SUCCESS)
return true;
else if (googleApiAvailability.isUserResolvableError(isAvailable))
Dialog dialog = googleApiAvailability.getErrorDialog(this, isAvailable, 0);
dialog.show();
else
Toast.makeText(this, "Can't connect to Google services", Toast.LENGTH_SHORT).show();
return false;
@Override
public void onMapReady(GoogleMap googleMap)
mMap = googleMap;
// gotoLocationzoom(-1.276680, 36.904785, 15);
if (ActivityCompat.checkSelfPermission(this,android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this,android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
// TODO: Consider calling
// Activity#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 Activity#requestPermissions for more details.
return;
mMap.setMyLocationEnabled(true);
// LatLng sydney = new LatLng(-1.276680, 36.904785);
// googleMap.addMarker(new MarkerOptions().position(sydney)
// .title("Marker in white hse"));
// googleMap.moveCamera(CameraUpdateFactory.newLatLng(sydney));
private void gotoLocationzoom (double lat, double lng, float zoom)
LatLng latLng = new LatLng(lat,lng);
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(latLng,zoom);
mMap.animateCamera(cameraUpdate);
public void search(View view) throws IOException
EditText et = (EditText) findViewById(R.id.editText);
String location = et.getText().toString();
Geocoder geocoder = new Geocoder(this);
List<Address> list = geocoder.getFromLocationName(location,1);
Address address = list.get(0);
String locality = address.getLocality();
Toast.makeText(this, locality, Toast.LENGTH_SHORT).show();
double lat = address.getLatitude();
double lng = address.getLongitude();
gotoLocationzoom(lat,lng,15);
LatLng latLng = new LatLng(lat,lng);
mMap.addMarker(new MarkerOptions().position(latLng).title(location).icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_CYAN)));
activity_map.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_
android:layout_
tools:context=".MapActivity">
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/map"
android:name="com.google.android.gms.maps.SupportMapFragment"
android:layout_
android:layout_
android:layout_alignParentBottom="true"
android:layout_marginBottom="0dp"
tools:context="com.example.mapwithmarker.MapsMarkerActivity" />
<EditText
android:id="@+id/editText"
android:layout_
android:layout_
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginEnd="115dp"
android:layout_marginRight="115dp"
android:ems="10"
android:hint="Enter your destination"
android:inputType="textPersonName" />
<Button
android:id="@+id/button"
android:layout_
android:layout_
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_marginEnd="17dp"
android:layout_marginRight="17dp"
android:onClick="search"
android:text="search" />
</RelativeLayout>
我添加到我的 AndroidManifest.xml 的权限
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<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.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.WRITE.EXTERNAL.STORAGE"/>
<uses-permission android:name="com.google.androidproviders.gsf.permissions.READ.GSERVICES"/>
<uses-permission android:name="com.kiki.doctorlocation.permission.MAPS.RECEIVE"/>
<uses-feature android:glEsVersion="0x00020000" android:required="true"/>
<permission android:name="com.kiki.doctorlocation.permission.MAPS.RECEIVE" android:protectionLevel="signature"/>
这是对我有用的代码...感谢您的见解
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