Java 如何在android中获取移动设备的纬度和经度？

如何使用定位工具获取android中移动设备的当前纬度和经度？

使用

对

getLastKnownLocation（）

的调用没有阻塞-这意味着如果当前没有可用的位置，它将返回

null

，因此您可能需要考虑将a传递给，这将为您提供位置的异步更新

private final LocationListener locationListener = new LocationListener() {
    public void onLocationChanged(Location location) {
        longitude = location.getLongitude();
        latitude = location.getLatitude();
    }
}

lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 10, locationListener);

如果您想使用GPS，您需要为您的应用程序提供

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

---

您可能还想在GPS不可用时添加，并使用选择您的位置提供商。

以下是查找GPS位置的类

LocationFinder

。这个类将调用

MyLocation

，它将完成业务

LocationFinder

public class LocationFinder extends Activity {

    int increment = 4;
    MyLocation myLocation = new MyLocation();

    // private ProgressDialog dialog;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.intermediat);
        myLocation.getLocation(getApplicationContext(), locationResult);

        boolean r = myLocation.getLocation(getApplicationContext(),
            locationResult);

        startActivity(new Intent(LocationFinder.this,
        // Nearbyhotelfinder.class));
            GPSMyListView.class));
        finish();
    }

    public LocationResult locationResult = new LocationResult() {

        @Override
        public void gotLocation(Location location) {
            // TODO Auto-generated method stub
            double Longitude = location.getLongitude();
            double Latitude = location.getLatitude();

            Toast.makeText(getApplicationContext(), "Got Location",
                Toast.LENGTH_LONG).show();

            try {
                SharedPreferences locationpref = getApplication()
                    .getSharedPreferences("location", MODE_WORLD_READABLE);
                SharedPreferences.Editor prefsEditor = locationpref.edit();
                prefsEditor.putString("Longitude", Longitude + "");
                prefsEditor.putString("Latitude", Latitude + "");
                prefsEditor.commit();
                System.out.println("SHARE PREFERENCE ME PUT KAR DIYA.");
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    };

    // handler for the background updating

}

MyLocation

public class MyLocation {

    Timer timer1;
    LocationManager lm;
    LocationResult locationResult;
    boolean gps_enabled=false;
    boolean network_enabled=false;

    public boolean getLocation(Context context, LocationResult result)
    {
        //I use LocationResult callback class to pass location value from MyLocation to user code.
        locationResult=result;
        if(lm==null)
            lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

        //exceptions will be thrown if provider is not permitted.
        try{gps_enabled=lm.isProviderEnabled(LocationManager.GPS_PROVIDER);}catch(Exception ex){}
        try{network_enabled=lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);}catch(Exception ex){}

        //Toast.makeText(context, gps_enabled+" "+network_enabled,     Toast.LENGTH_LONG).show();

        //don't start listeners if no provider is enabled
        if(!gps_enabled && !network_enabled)
            return false;

        if(gps_enabled)
            lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListenerGps);
        if(network_enabled)
            lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListenerNetwork);
        timer1=new Timer();


        timer1.schedule(new GetLastLocation(), 10000);
    //    Toast.makeText(context, " Yaha Tak AAya", Toast.LENGTH_LONG).show();
        return true;
    }

    LocationListener locationListenerGps = new LocationListener() {
        public void onLocationChanged(Location location) {
            timer1.cancel();
            locationResult.gotLocation(location);
            lm.removeUpdates(this);
            lm.removeUpdates(locationListenerNetwork);
        }
        public void onProviderDisabled(String provider) {}
        public void onProviderEnabled(String provider) {}
        public void onStatusChanged(String provider, int status, Bundle extras) {}
    };

    LocationListener locationListenerNetwork = new LocationListener() {
        public void onLocationChanged(Location location) {
            timer1.cancel();
            locationResult.gotLocation(location);
            lm.removeUpdates(this);
            lm.removeUpdates(locationListenerGps);
        }
        public void onProviderDisabled(String provider) {}
        public void onProviderEnabled(String provider) {}
        public void onStatusChanged(String provider, int status, Bundle extras) {}
    };

    class GetLastLocation extends TimerTask {
        @Override

        public void run() {

            //Context context = getClass().getgetApplicationContext();
             Location net_loc=null, gps_loc=null;
             if(gps_enabled)
                 gps_loc=lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
             if(network_enabled)
                 net_loc=lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

             //if there are both values use the latest one
             if(gps_loc!=null && net_loc!=null){
                 if(gps_loc.getTime()>net_loc.getTime())
                     locationResult.gotLocation(gps_loc);
                 else
                     locationResult.gotLocation(net_loc);
                 return;
             }

             if(gps_loc!=null){
                 locationResult.gotLocation(gps_loc);
                 return;
             }
             if(net_loc!=null){
                 locationResult.gotLocation(net_loc);
                 return;
             }
             locationResult.gotLocation(null);
        }
    }

    public static abstract class LocationResult{
        public abstract void gotLocation(Location location);
    }
}

---

上述解决方案也是正确的，但有时如果location为null，则会导致应用程序崩溃或无法正常工作。获取android纬度和经度的最佳方法是：

 Geocoder geocoder;
     String bestProvider;
     List<Address> user = null;
     double lat;
     double lng;

    LocationManager lm = (LocationManager) activity.getSystemService(Context.LOCATION_SERVICE);

     Criteria criteria = new Criteria();
     bestProvider = lm.getBestProvider(criteria, false);
     Location location = lm.getLastKnownLocation(bestProvider);

     if (location == null){
         Toast.makeText(activity,"Location Not found",Toast.LENGTH_LONG).show();
      }else{
        geocoder = new Geocoder(activity);
        try {
            user = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
        lat=(double)user.get(0).getLatitude();
        lng=(double)user.get(0).getLongitude();
        System.out.println(" DDD lat: " +lat+",  longitude: "+lng);

        }catch (Exception e) {
                e.printStackTrace();
        }
    }

Geocoder-Geocoder；
字符串提供程序；
列表用户=null；
双lat；
双液化天然气；
LocationManager lm=（LocationManager）activity.getSystemService（Context.LOCATION\u服务）；
标准=新标准（）；
bestProvider=lm.getBestProvider（标准，false）；
位置=lm.getLastKnownLocation（bestProvider）；
if（位置==null）{
Toast.makeText（活动，“未找到位置”，Toast.LENGTH_LONG.show（）；
}否则{
地理编码器=新地理编码器（活动）；
试一试{
user=geocoder.getFromLocation（location.getLatitude（），location.getLatitude（），1）；
lat=（双精度）user.get（0.getLatitude（）；
lng=（双精度）user.get（0.getLongitude（）；
系统输出打印项次（“DDD纬度：+lat+”，经度：+lng）；
}捕获（例外e）{
e、 printStackTrace（）；
}
}

您可以使用此

`

---

`

使用

google

时，事情经常会发生变化：以前的答案中没有一个对我有用

基于此，以下是您如何使用

融合位置提供者

这需要设置Google Play服务

活动类

public class GPSTrackerActivity extends AppCompatActivity implements
    GoogleApiClient.ConnectionCallbacks,     
 GoogleApiClient.OnConnectionFailedListener {

private GoogleApiClient mGoogleApiClient;
Location mLastLocation;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

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

}

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

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

@Override
public void onConnected(Bundle bundle) {
    try {

        mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
                mGoogleApiClient);
        if (mLastLocation != null) {
            Intent intent = new Intent();
            intent.putExtra("Longitude", mLastLocation.getLongitude());
            intent.putExtra("Latitude", mLastLocation.getLatitude());
            setResult(1,intent);
            finish();

        }
    } catch (SecurityException e) {

    }

}

@Override
public void onConnectionSuspended(int i) {

}

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {

}
}

用法

在你的活动中

 Intent intent = new Intent(context, GPSTrackerActivity.class);
    startActivityForResult(intent,1);

这个方法呢

 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if(requestCode == 1){
        Bundle extras = data.getExtras();
        Double longitude = extras.getDouble("Longitude");
        Double latitude = extras.getDouble("Latitude");
    }
}

---

最好的方法是

public class GPSTrackerActivity extends AppCompatActivity implements
    GoogleApiClient.ConnectionCallbacks,     
 GoogleApiClient.OnConnectionFailedListener {

private GoogleApiClient mGoogleApiClient;
Location mLastLocation;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

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

}

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

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

@Override
public void onConnected(Bundle bundle) {
    try {

        mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
                mGoogleApiClient);
        if (mLastLocation != null) {
            Intent intent = new Intent();
            intent.putExtra("Longitude", mLastLocation.getLongitude());
            intent.putExtra("Latitude", mLastLocation.getLatitude());
            setResult(1,intent);
            finish();

        }
    } catch (SecurityException e) {

    }

}

@Override
public void onConnectionSuspended(int i) {

}

@Override
public void onConnectionFailed(ConnectionResult connectionResult) {

}
}

添加权限清单文件

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

您可以使用

要在您的项目中使用Fused Location Provider，您必须在我们的应用程序级别build.gradle文件中添加google play services Location依赖项

dependencies {
   implementation fileTree(dir: 'libs', include: ['*.jar'])
   ...
   ...
   ...
   implementation 'com.google.android.gms:play-services-location:17.0.0'
}

清单中的权限

使用位置服务的应用程序必须请求位置权限。Android提供两种位置权限：访问粗略位置和访问精细位置

然后，您可以使用FusedLocationProvider客户端在所需位置获取更新的位置

    mFusedLocationClient.lastLocation.addOnCompleteListener(this) { task ->
        var location: Location? = task.result
        if (location == null) {
            requestNewLocationData()
        } else {
            findViewById<TextView>(R.id.latTextView).text = location.latitude.toString()
            findViewById<TextView>(R.id.lonTextView).text = location.longitude.toString()
        }
    }

---

好工作的人。。！！！上面的代码不工作，但您的代码工作正常，，！！奇怪的是，为什么人们不相信你！。。thnks@sandy此注释是awooms Toast.makeText（上下文“Yaha-Tak-AAya”，Toast.LENGTH\u LONG.show（）+1@sandy是 啊如何从中获得纬度和经度。很抱歉，这个愚蠢的问题终于找到了解决我的问题的最佳方法，即从地理位置内部获取纬度和经度。共享偏好解决了这个问题。谢谢大家!@rup35h你错过了什么！（System.out.println（“共享优先权我放了卡尔迪亚”）；+1这在emulator中会起作用吗。此代码是否在模拟器中显示lati和longi？？？？？您还应确保在onPause（或在需要时）中删除更新，以停止获取您不再需要的更新。->lm.RemoveUpdate（locationListener）；getLastLocation的准确度如何？如果您已经在使用ACCESS\u FINE\u LOCATION权限，则会隐式启用粗略定位权限：“如果您同时使用网络\u提供程序和GPS\u提供程序，则只需要请求ACCESS\u FINE\u LOCATION权限，因为它包括两个提供程序的权限。”我使用了这段代码和nedded权限，但经度和纬度为空。这里的错误在哪里？并在AndroidManifest xml中声明活动file@DAVIDBALAS1Android Studio现在为您完成这一步。所有这些类的名称空间是什么？请分享您的internet和gps状态检查功能？

dependencies {
   implementation fileTree(dir: 'libs', include: ['*.jar'])
   ...
   ...
   ...
   implementation 'com.google.android.gms:play-services-location:17.0.0'
}

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

ActivityCompat.requestPermissions(
    this,
    arrayOf(Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION),
    PERMISSION_ID
)

    mFusedLocationClient.lastLocation.addOnCompleteListener(this) { task ->
        var location: Location? = task.result
        if (location == null) {
            requestNewLocationData()
        } else {
            findViewById<TextView>(R.id.latTextView).text = location.latitude.toString()
            findViewById<TextView>(R.id.lonTextView).text = location.longitude.toString()
        }
    }

private fun requestNewLocationData() {
    var mLocationRequest = LocationRequest()
    mLocationRequest.priority = LocationRequest.PRIORITY_HIGH_ACCURACY
    mLocationRequest.interval = 0
    mLocationRequest.fastestInterval = 0
    mLocationRequest.numUpdates = 1

    mFusedLocationClient = LocationServices.getFusedLocationProviderClient(this)
    mFusedLocationClient!!.requestLocationUpdates(
            mLocationRequest, mLocationCallback,
            Looper.myLooper()
    )
}