Androidでモバイルデバイスの緯度と経度を取得するにはどうすればよいですか？

位置情報ツールを使用して、Androidでモバイルデバイスの現在の緯度と経度を取得するにはどうすればよいですか？

を使用しLocationManagerます。

LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE); 
Location location = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
double longitude = location.getLongitude();
double latitude = location.getLatitude();

への呼び出しgetLastKnownLocation()はブロックしません。つまり、null現在位置が利用できない場合に戻ります。そのためLocationListener、代わりにrequestLocationUpdates()メソッドにを渡して、位置の非同期更新を確認することをお勧めします。

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);

GPSを使用する場合は、アプリケーションにACCESS_FINE_LOCATION許可を与える必要があります。

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

GPSが利用できない場合のACCESS_COARSE_LOCATIONアクセス許可を追加し、getBestProvider()メソッドで位置情報プロバイダーを選択することもできます。

これは、LocationFinderGPSの位置を見つけるためのクラスです。このクラスはMyLocation、ビジネスを行うを呼び出します。

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

}

私の場所

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);
    }
}

でgoogle、物事が非常に頻繁に変更：以前の回答の非は私のために働きました。

このグーグルトレーニングに基づいてここにあなたがそれを使用する方法です

融合位置プロバイダー

これには、Google Play開発者サービスの設定が必要です

活動クラス

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) {

}
}

使用法

あなたの活動で

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

そしてこの方法

 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");
    }
}

あなたはこれを使って現在の緯度を得ることができます

`

  public class MainActivity extends ActionBarActivity {
  private LocationManager locationManager;
  private String provider;
  private MyLocationListener mylistener;
  private Criteria criteria;
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
@SuppressLint("NewApi")
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


             locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
              // Define the criteria how to select the location provider
              criteria = new Criteria();
              criteria.setAccuracy(Criteria.ACCURACY_COARSE);   //default

              // user defines the criteria

              criteria.setCostAllowed(false); 
              // get the best provider depending on the criteria
              provider = locationManager.getBestProvider(criteria, false);

              // the last known location of this provider
              Location location = locationManager.getLastKnownLocation(provider);

              mylistener = new MyLocationListener();

              if (location != null) {
                  mylistener.onLocationChanged(location);
              } else {
                  // leads to the settings because there is no last known location
                  Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
                  startActivity(intent);
              }
              // location updates: at least 1 meter and 200millsecs change
              locationManager.requestLocationUpdates(provider, 200, 1, mylistener);
            String a=""+location.getLatitude();
            Toast.makeText(getApplicationContext(), a, 222).show();

}

private class MyLocationListener implements LocationListener {

      @Override
      public void onLocationChanged(Location location) {
        // Initialize the location fields



          Toast.makeText(MainActivity.this,  ""+location.getLatitude()+location.getLongitude(),
                    Toast.LENGTH_SHORT).show()  

      }

      @Override
      public void onStatusChanged(String provider, int status, Bundle extras) {
          Toast.makeText(MainActivity.this, provider + "'s status changed to "+status +"!",
                    Toast.LENGTH_SHORT).show();
      }

      @Override
      public void onProviderEnabled(String provider) {
          Toast.makeText(MainActivity.this, "Provider " + provider + " enabled!",
            Toast.LENGTH_SHORT).show();

      }

      @Override
      public void onProviderDisabled(String provider) {
          Toast.makeText(MainActivity.this, "Provider " + provider + " disabled!",
            Toast.LENGTH_SHORT).show();
      }
  }         

`

上記の解決策も正しいですが、場所がnullの場合、アプリがクラッシュするか、正しく機能しないことがあります。Androidの緯度と経度を取得する最良の方法は次のとおりです。

 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();
        }
    }

最善の方法は

権限マニフェストファイルを追加する

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

次に、GPS位置を取得できます。GPS位置が利用できない場合、この関数はネットワーク位置を返します

    public static Location getLocationWithCheckNetworkAndGPS(Context mContext) {
    LocationManager lm = (LocationManager)
            mContext.getSystemService(Context.LOCATION_SERVICE);
    assert lm != null;
    isGpsEnabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
    isNetworkLocationEnabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

    Location networkLoacation = null, gpsLocation = null, finalLoc = null;
    if (isGpsEnabled)
        if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

            return null;
        }gpsLocation = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
    if (isNetworkLocationEnabled)
        networkLoacation = lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);

    if (gpsLocation != null && networkLoacation != null) {

        //smaller the number more accurate result will
        if (gpsLocation.getAccuracy() > networkLoacation.getAccuracy())
            return finalLoc = networkLoacation;
        else
            return finalLoc = gpsLocation;

    } else {

        if (gpsLocation != null) {
            return finalLoc = gpsLocation;
        } else if (networkLoacation != null) {
            return finalLoc = networkLoacation;
        }
    }
    return finalLoc;
}

2020年更新：Kotlinコルーチンを使用してデバイスの緯度、言語、住所を取得する

これは古い質問であり、ほとんどの回答は古くなっています。これが私のアプリの実行方法です。

このクラスは、ジオコーディングを使用してデバイスの場所を追跡し、デバイスのアドレスのリストを返すのに役立ちます。いくつかのutilクラスに入れてください

import android.Manifest
import android.app.AlertDialog
import android.content.Context
import android.content.Intent
import android.content.pm.PackageManager
import android.location.*
import android.os.Bundle
import android.provider.Settings
import android.util.Log
import androidx.core.app.ActivityCompat
import com.bmw.weatherapp.R
import kotlinx.coroutines.*
import java.io.IOException
import java.lang.ref.WeakReference
import java.util.*
import kotlin.coroutines.CoroutineContext

/**
 * Use GPS or Network Provider to get Device Location
 */
class DeviceLocationTracker(context: Context, deviceLocationListener: DeviceLocationListener) : LocationListener, CoroutineScope {
    private var deviceLocation: Location? = null
    private val context: WeakReference<Context>
    private var locationManager: LocationManager? = null
    private var deviceLocationListener: DeviceLocationListener
    private val job = Job()
    override val coroutineContext: CoroutineContext
        get() = job + Dispatchers.Main

    init {
        this.context = WeakReference(context)
        this.deviceLocationListener = deviceLocationListener
        initializeLocationProviders()
    }

    private fun initializeLocationProviders() {
        //Init Location Manger if not already initialized
        if (null == locationManager) {
            locationManager = context.get()
                    ?.getSystemService(Context.LOCATION_SERVICE) as LocationManager
        }
        locationManager?.apply {
            // flag for GPS status
            val isGPSEnabled = isProviderEnabled(LocationManager.GPS_PROVIDER)

            // flag for network status
            val isNetworkEnabled = isProviderEnabled(LocationManager.PASSIVE_PROVIDER)

            //If we have permission
            if (ActivityCompat.checkSelfPermission(context.get()!!, Manifest.permission.ACCESS_FINE_LOCATION)
                    == PackageManager.PERMISSION_GRANTED &&
                    ActivityCompat.checkSelfPermission(context.get()!!, Manifest.permission.ACCESS_COARSE_LOCATION)
                    == PackageManager.PERMISSION_GRANTED) {

                //First Try GPS
                if (isGPSEnabled) {
                    requestLocationUpdates(
                            LocationManager.GPS_PROVIDER,
                            UPDATE_FREQUENCY_TIME,
                            UPDATE_FREQUENCY_DISTANCE.toFloat(), this@DeviceLocationTracker)
                    deviceLocation = locationManager!!.getLastKnownLocation(LocationManager.GPS_PROVIDER)
                } else {
                    // Show alert to open GPS
                    context.get()?.apply {
                        AlertDialog.Builder(this)
                                .setTitle(getString(R.string.title_enable_gps))
                                .setMessage(getString(R.string.desc_enable_gps))
                                .setPositiveButton(getString(R.string.btn_settings)
                                ) { dialog, which ->
                                    val intent = Intent(
                                            Settings.ACTION_LOCATION_SOURCE_SETTINGS)
                                    startActivity(intent)
                                }.setNegativeButton(getString(R.string.btn_cancel))
                                { dialog, which -> dialog.cancel() }.show()
                    }
                }

                //If failed try using NetworkManger
                if(null==deviceLocation && isNetworkEnabled) {
                    requestLocationUpdates(
                            LocationManager.PASSIVE_PROVIDER,
                            0, 0f,
                            this@DeviceLocationTracker)
                    deviceLocation = locationManager!!.getLastKnownLocation(LocationManager.NETWORK_PROVIDER)
                }
            }
        }
    }

    /**
     * Stop using GPS listener
     * Must call this function to stop using GPS
     */
    fun stopUpdate() {
        if (locationManager != null) {
            locationManager!!.removeUpdates(this@DeviceLocationTracker)
        }
    }

    override fun onLocationChanged(newDeviceLocation: Location) {
        deviceLocation = newDeviceLocation
        launch(Dispatchers.Main) {
            withContext(Dispatchers.IO) {
                var addressList: List<Address?>? = null
                try {
                    addressList = Geocoder(context.get(),
                            Locale.ENGLISH).getFromLocation(
                            newDeviceLocation.latitude,
                            newDeviceLocation.longitude,
                            1)
                    deviceLocationListener.onDeviceLocationChanged(addressList)
                    Log.i(TAG, "Fetch address list"+addressList)

                } catch (e: IOException) {
                    Log.e(TAG, "Failed Fetched Address List")
                }
            }
        }
    }

    override fun onProviderDisabled(provider: String) {}
    override fun onProviderEnabled(provider: String) {}
    override fun onStatusChanged(provider: String, status: Int, extras: Bundle) {}
    interface DeviceLocationListener {
        fun onDeviceLocationChanged(results: List<Address>?)
    }

    companion object {
        // The minimum distance to change Updates in meters
        private const val UPDATE_FREQUENCY_DISTANCE: Long = 1 // 10 meters

        // The minimum time between updates in milliseconds
        private const val UPDATE_FREQUENCY_TIME: Long = 1 // 1 minute
        private val TAG = DeviceLocationTracker::class.java.simpleName
    }
}

GPSが無効になっている場合のアラートダイアログの文字列を追加

   <string name="title_enable_gps">Enable GPS</string>
   <string name="desc_enable_gps">GPS is not enabled. Do you want to go to settings menu?</string>
    <string name="btn_settings">Open Settings</string>
    <string name="btn_cancel">Cancel</string>

これらの権限をAndroidマニフェストに追加し、アプリの起動時にリクエストします

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

使用法

クラスに実装DeviceLocationListenerするActivity/Fragment

  class MainActivity : AppCompatActivity, DeviceLocationTracker.DeviceLocationListener {
    

onDeviceLocationChangedコールバックをオーバーライドします。現在地を取得しますonDeviceLocationChanged

  override fun onDeviceLocationChanged(results: List<Address>?) {
        val currntLocation = results?.get(0);
        currntLocation?.apply {
             currentlLat = latitude
             currentLng = longitude
             Country = countryCode
             cityName = getAddressLine(0)
          
        }

    }

追跡を開始するにはDeviceLocationTracker、onCreateメソッドでオブジェクトを作成します。Activityas Context＆this asを渡しDeviceLocationListenerます。

private lateinit var deviceLocationTracker: DeviceLocationTracker

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        ...
        deviceLocationTracker= DeviceLocationTracker(this, this)

以上ですonDeviceLocationChanged。次に、位置情報の更新をで開始します。