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AndroidでバックグラウンドでユーザーのGPS位置を取得するための最良の方法

私のAndroidアプリでは、数分おきにユーザーの現在位置を取得し、Webサービスを使用して私のセンターサーバーに更新したいです。現在私はFused Locationを使用していますユーザーの現在の位置を取得するために提供します。 リンクを参照してください

今私はユーザーの場所を頻繁に取得し、Webサービスを呼び出すための最良の方法が何であるかを知りたいです。

以下は私のユーザーの現在位置を表示する私のコードです: -

     locationrequest = LocationRequest.create();
     locationrequest.setInterval(10000);
     locationclient.requestLocationUpdates(locationrequest,new com.google.Android.gms.location.LocationListener() {

        @Override
        public void onLocationChanged(Location location) {
              Log.i(TAG, "Last Known Location :" + location.getLatitude() + "," + location.getLongitude());
        }
    });

今から私はこのコードを呼び出す必要があります。私はこれをバックグラウンドサービスまたは他の場所で使用できますか。

あなたのアイデアを教えてください。

TIA.

89
Ravi Bhandari

他の答えのどれも使用していません:

com.google.Android.gms.location.FusedLocationProviderClient

これはFused Location Providerであり、GoogleがFusion Locationプロバイダーと対話するための主要な入り口であり、良い例を見つけるのは非常に困難です。これはGoogleによって2017年半ばにリリースされました。

Google PlayサービスのロケーションAPIは、AndroidフレームワークのロケーションAPI(Android.location)よりも優先されます。

現在AndroidフレームワークのロケーションAPIを使用している場合は、できるだけ早くGoogle PlayサービスのロケーションAPIに切り替えることを強くお勧めします。

Google Location APIを使用するには、まずこれをbuild.gradleに追加します。

compile 'com.google.Android.gms:play-services:11.0.0'

その後、このクラスWherebouts.Javaを使うことができます。

import Android.location.Location;
import Android.os.Looper;
import Android.util.Log;

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.location.LocationSettingsRequest;

/**
 * Uses Google Play API for obtaining device locations
 * Created by alejandro.tkachuk 
 * [email protected]
 * www.calculistik.com Mobile Development
 */

public class Wherebouts {

    private static final Wherebouts instance = new Wherebouts();

    private static final String TAG = Wherebouts.class.getSimpleName();

    private FusedLocationProviderClient mFusedLocationClient;
    private LocationCallback locationCallback;
    private LocationRequest locationRequest;
    private LocationSettingsRequest locationSettingsRequest;

    private Workable<GPSPoint> workable;

    private static final long UPDATE_INTERVAL_IN_MILLISECONDS = 1000;
    private static final long FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS = 1000;

    private Wherebouts() {
        this.locationRequest = new LocationRequest();
        this.locationRequest.setInterval(UPDATE_INTERVAL_IN_MILLISECONDS);
        this.locationRequest.setFastestInterval(FASTEST_UPDATE_INTERVAL_IN_MILLISECONDS);
        this.locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

        LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder();
        builder.addLocationRequest(this.locationRequest);
        this.locationSettingsRequest = builder.build();

        this.locationCallback = new LocationCallback() {
            @Override
            public void onLocationResult(LocationResult locationResult) {
                super.onLocationResult(locationResult); // why? this. is. retarded. Android.
                Location currentLocation = locationResult.getLastLocation();

                GPSPoint gpsPoint = new GPSPoint(currentLocation.getLatitude(), currentLocation.getLongitude());
                Log.i(TAG, "Location Callback results: " + gpsPoint);
                if (null != workable)
                    workable.work(gpsPoint);
            }
        };

        this.mFusedLocationClient = LocationServices.getFusedLocationProviderClient(MainApplication.getAppContext());
        this.mFusedLocationClient.requestLocationUpdates(this.locationRequest,
                this.locationCallback, Looper.myLooper());
    }

    public static Wherebouts instance() {
        return instance;
    }

    public void onChange(Workable<GPSPoint> workable) {
        this.workable = workable;
    }

    public LocationSettingsRequest getLocationSettingsRequest() {
        return this.locationSettingsRequest;
    }

    public void stop() {
        Log.i(TAG, "stop() Stopping location tracking");
        this.mFusedLocationClient.removeLocationUpdates(this.locationCallback);
    }

}

あなたのアクティビティから、Workableオブジェクトを渡すことで、このように使うことができます。実行可能オブジェクトは、カスタムのCallback類似オブジェクトにすぎません。

 Wherebouts.instance().onChange(workable);

Workableのようなコールバックを使用することで、アクティビティにUI関連のコードを記述し、WhereboutsのようにGPSの操作の煩わしさをヘルパークラスに任せます。

    new Workable<GPSPoint>() {
        @Override
        public void work(GPSPoint gpsPoint) {
            // draw something in the UI with this new data
        }
    };

もちろん、あなたはあなたのアプリが使うためにAndroid OSに対応する許可を求める必要があるでしょう。あなたはそれについてのさらなる情報のために以下のドキュメンテーションを読むことができるか、またはいくらかの研究をすることができます。

ここからソースコードをダウンロードしてください( バックグラウンドサービスを使って現在地を取得

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:Android="http://schemas.Android.com/apk/res/Android"
    package="servicetutorial.service">

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

    <application
        Android:allowBackup="true"
        Android:icon="@mipmap/ic_launcher"
        Android:label="@string/app_name"
        Android:supportsRtl="true"
        Android:theme="@style/AppTheme">
        <activity Android:name=".MainActivity"
            Android:theme="@Android:style/Theme.Translucent.NoTitleBar">
            <intent-filter>
                <action Android:name="Android.intent.action.MAIN" />

                <category Android:name="Android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <service Android:name=".GoogleService"></service>
    </application>

</manifest>

activity_main.xml

<RelativeLayout xmlns:Android="http://schemas.Android.com/apk/res/Android"
    Android:layout_width="match_parent"
    Android:background="#ffffff"
    Android:layout_height="match_parent">

    <TextView
        Android:layout_width="match_parent"
        Android:layout_height="50dp"
        Android:background="#3F51B5"
        Android:text="Location using service"
        Android:textColor="#ffffff"
        Android:textSize="20dp"
        Android:gravity="center"/>

    <LinearLayout
        Android:layout_width="match_parent"
        Android:layout_height="wrap_content"
        Android:layout_centerInParent="true"

        Android:orientation="vertical">



    <LinearLayout
        Android:layout_width="match_parent"
        Android:orientation="horizontal"
        Android:layout_height="50dp">

        <TextView
            Android:layout_width="150dp"
            Android:layout_height="wrap_content"
            Android:text="Latitude"
            Android:layout_gravity="center_vertical"
            Android:layout_marginLeft="10dp"
            Android:textColor="#000000"
            Android:textSize="20dp"/>
        <TextView
            Android:layout_width="wrap_content"
            Android:layout_height="wrap_content"
            Android:text=""
            Android:id="@+id/tv_latitude"
            Android:layout_gravity="center_vertical"
            Android:layout_marginLeft="10dp"
            Android:textColor="#000000"
            Android:textSize="20dp"/>


    </LinearLayout>

        <LinearLayout
            Android:layout_width="match_parent"
            Android:orientation="horizontal"
            Android:layout_height="50dp">

            <TextView
                Android:layout_width="150dp"
                Android:layout_height="wrap_content"
                Android:text="Longitude"
                Android:layout_gravity="center_vertical"
                Android:layout_marginLeft="10dp"
                Android:textColor="#000000"
                Android:textSize="20dp"/>
            <TextView
                Android:layout_width="wrap_content"
                Android:layout_height="wrap_content"
                Android:text=""
                Android:id="@+id/tv_longitude"
                Android:layout_gravity="center_vertical"
                Android:layout_marginLeft="10dp"
                Android:textColor="#000000"
                Android:textSize="20dp"/>


        </LinearLayout>

        <LinearLayout
            Android:layout_width="match_parent"
            Android:orientation="horizontal"
            Android:layout_height="50dp">

            <TextView
                Android:layout_width="150dp"
                Android:layout_height="wrap_content"
                Android:text="Address"
                Android:layout_gravity="center_vertical"
                Android:layout_marginLeft="10dp"
                Android:textColor="#000000"
                Android:textSize="20dp"/>
            <TextView
                Android:layout_width="wrap_content"
                Android:layout_height="wrap_content"
                Android:text=""
                Android:id="@+id/tv_address"
                Android:layout_gravity="center_vertical"
                Android:layout_marginLeft="10dp"
                Android:textColor="#000000"
                Android:textSize="20dp"/>


        </LinearLayout>

        <LinearLayout
            Android:layout_width="match_parent"
            Android:orientation="horizontal"
            Android:layout_height="50dp">

            <TextView
                Android:layout_width="150dp"
                Android:layout_height="wrap_content"
                Android:text="Area"
                Android:layout_gravity="center_vertical"
                Android:layout_marginLeft="10dp"
                Android:textColor="#000000"
                Android:textSize="20dp"/>
            <TextView
                Android:layout_width="wrap_content"
                Android:layout_height="wrap_content"
                Android:text=""
                Android:id="@+id/tv_area"
                Android:layout_gravity="center_vertical"
                Android:layout_marginLeft="10dp"
                Android:textColor="#000000"
                Android:textSize="20dp"/>


        </LinearLayout>
        <LinearLayout
            Android:layout_width="match_parent"
            Android:orientation="horizontal"
            Android:layout_height="50dp">

            <TextView
                Android:layout_width="150dp"
                Android:layout_height="wrap_content"
                Android:text="Locality"
                Android:layout_gravity="center_vertical"
                Android:layout_marginLeft="10dp"
                Android:textColor="#000000"
                Android:textSize="20dp"/>
            <TextView
                Android:layout_width="wrap_content"
                Android:layout_height="wrap_content"
                Android:text=""
                Android:id="@+id/tv_locality"
                Android:layout_gravity="center_vertical"
                Android:layout_marginLeft="10dp"
                Android:textColor="#000000"
                Android:textSize="20dp"/>


        </LinearLayout>

    </LinearLayout>

    <Button
        Android:layout_width="match_parent"
        Android:layout_height="wrap_content"
        Android:id="@+id/btn_start"
        Android:text="Get Location"
        Android:layout_alignParentBottom="true"/>



</RelativeLayout>

MainActivity.Java

package servicetutorial.service;

import Android.*;
import Android.app.Activity;
import Android.app.ActivityManager;
import Android.content.BroadcastReceiver;
import Android.content.Context;
import Android.content.Intent;
import Android.content.IntentFilter;
import Android.content.SharedPreferences;
import Android.content.pm.PackageManager;
import Android.location.Address;
import Android.location.Geocoder;
import Android.preference.PreferenceManager;
import Android.renderscript.Double2;
import Android.support.v4.app.ActivityCompat;
import Android.support.v4.content.ContextCompat;
import Android.support.v7.app.AppCompatActivity;
import Android.os.Bundle;
import Android.util.Log;
import Android.view.View;
import Android.widget.Button;
import Android.widget.TextView;
import Android.widget.Toast;

import Java.io.IOException;
import Java.util.List;
import Java.util.Locale;

public class MainActivity extends Activity {
    Button btn_start;
    private static final int REQUEST_PERMISSIONS = 100;
    boolean boolean_permission;
    TextView tv_latitude, tv_longitude, tv_address,tv_area,tv_locality;
    SharedPreferences mPref;
    SharedPreferences.Editor medit;
    Double latitude,longitude;
    Geocoder geocoder;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn_start = (Button) findViewById(R.id.btn_start);
        tv_address = (TextView) findViewById(R.id.tv_address);
        tv_latitude = (TextView) findViewById(R.id.tv_latitude);
        tv_longitude = (TextView) findViewById(R.id.tv_longitude);
        tv_area = (TextView)findViewById(R.id.tv_area);
        tv_locality = (TextView)findViewById(R.id.tv_locality);
        geocoder = new Geocoder(this, Locale.getDefault());
        mPref = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        medit = mPref.edit();


        btn_start.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (boolean_permission) {

                    if (mPref.getString("service", "").matches("")) {
                        medit.putString("service", "service").commit();

                        Intent intent = new Intent(getApplicationContext(), GoogleService.class);
                        startService(intent);

                    } else {
                        Toast.makeText(getApplicationContext(), "Service is already running", Toast.LENGTH_SHORT).show();
                    }
                } else {
                    Toast.makeText(getApplicationContext(), "Please enable the gps", Toast.LENGTH_SHORT).show();
                }

            }
        });

        fn_permission();
    }

    private void fn_permission() {
        if ((ContextCompat.checkSelfPermission(getApplicationContext(), Android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED)) {

            if ((ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Android.Manifest.permission.ACCESS_FINE_LOCATION))) {


            } else {
                ActivityCompat.requestPermissions(MainActivity.this, new String[]{Android.Manifest.permission.ACCESS_FINE_LOCATION

                        },
                        REQUEST_PERMISSIONS);

            }
        } else {
            boolean_permission = true;
        }
    }

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

        switch (requestCode) {
            case REQUEST_PERMISSIONS: {
                if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    boolean_permission = true;

                } else {
                    Toast.makeText(getApplicationContext(), "Please allow the permission", Toast.LENGTH_LONG).show();

                }
            }
        }
    }

    private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {

            latitude = Double.valueOf(intent.getStringExtra("latutide"));
            longitude = Double.valueOf(intent.getStringExtra("longitude"));

            List<Address> addresses = null;

            try {
                addresses = geocoder.getFromLocation(latitude, longitude, 1);
                String cityName = addresses.get(0).getAddressLine(0);
                String stateName = addresses.get(0).getAddressLine(1);
                String countryName = addresses.get(0).getAddressLine(2);

                tv_area.setText(addresses.get(0).getAdminArea());
                tv_locality.setText(stateName);
                tv_address.setText(countryName);



            } catch (IOException e1) {
                e1.printStackTrace();
            }


            tv_latitude.setText(latitude+"");
            tv_longitude.setText(longitude+"");
            tv_address.getText();


        }
    };

    @Override
    protected void onResume() {
        super.onResume();
        registerReceiver(broadcastReceiver, new IntentFilter(GoogleService.str_receiver));

    }

    @Override
    protected void onPause() {
        super.onPause();
        unregisterReceiver(broadcastReceiver);
    }


}

GoogleService.Java

package servicetutorial.service;

import Android.app.Service;
import Android.content.Context;
import Android.content.Intent;
import Android.location.Location;
import Android.location.LocationListener;
import Android.location.LocationManager;
import Android.os.Bundle;
import Android.os.Handler;
import Android.os.IBinder;
import Android.support.annotation.Nullable;
import Android.util.Log;

import Java.util.Timer;
import Java.util.TimerTask;

/**
 * Created by deepshikha on 24/11/16.
 */

public class GoogleService extends Service implements LocationListener{

    boolean isGPSEnable = false;
    boolean isNetworkEnable = false;
    double latitude,longitude;
    LocationManager locationManager;
    Location location;
    private Handler mHandler = new Handler();
    private Timer mTimer = null;
    long notify_interval = 1000;
    public static String str_receiver = "servicetutorial.service.receiver";
    Intent intent;




    public GoogleService() {

    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();

        mTimer = new Timer();
        mTimer.schedule(new TimerTaskToGetLocation(),5,notify_interval);
        intent = new Intent(str_receiver);
//        fn_getlocation();
    }

    @Override
    public void onLocationChanged(Location location) {

    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {

    }

    @Override
    public void onProviderEnabled(String provider) {

    }

    @Override
    public void onProviderDisabled(String provider) {

    }

    private void fn_getlocation(){
        locationManager = (LocationManager)getApplicationContext().getSystemService(LOCATION_SERVICE);
        isGPSEnable = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
        isNetworkEnable = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

        if (!isGPSEnable && !isNetworkEnable){

        }else {

            if (isNetworkEnable){
                location = null;
                locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,1000,0,this);
                if (locationManager!=null){
                    location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                    if (location!=null){

                        Log.e("latitude",location.getLatitude()+"");
                        Log.e("longitude",location.getLongitude()+"");

                        latitude = location.getLatitude();
                        longitude = location.getLongitude();
                        fn_update(location);
                    }
                }

            }


            if (isGPSEnable){
                location = null;
                locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,1000,0,this);
                if (locationManager!=null){
                    location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
                    if (location!=null){
                        Log.e("latitude",location.getLatitude()+"");
                        Log.e("longitude",location.getLongitude()+"");
                        latitude = location.getLatitude();
                        longitude = location.getLongitude();
                        fn_update(location);
                    }
                }
            }


        }

    }

    private class TimerTaskToGetLocation extends TimerTask{
        @Override
        public void run() {

            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    fn_getlocation();
                }
            });

        }
    }

    private void fn_update(Location location){

        intent.putExtra("latutide",location.getLatitude()+"");
        intent.putExtra("longitude",location.getLongitude()+"");
        sendBroadcast(intent);
    }


}

この依存関係を追加してください

compile 'com.google.Android.gms:play-services:9.4.0'
16
Deepshikha Puri

使用: GCMネットワークマネージャ

これを実行して、再起動後も実行される定期的なタスクを開始します。

PeriodicTask task = new PeriodicTask.Builder()
    .setService(MyLocationService.class)
    .setTag("periodic")
    .setPeriod(30L)
    .setPersisted(true)
    .build();
mGcmNetworkManager.schedule(task);

次にonRunTask()で現在の場所を取得して使用します(この例では、場所が見つかったことをUIに知らせるためにイベントが最後に送信されます)。

    public void getLastKnownLocation() {
    Location lastKnownGPSLocation;
    Location lastKnownNetworkLocation;
    String gpsLocationProvider = LocationManager.GPS_PROVIDER;
    String networkLocationProvider = LocationManager.NETWORK_PROVIDER;

    try {
        locationManager = (LocationManager) App.get().getSystemService(Context.LOCATION_SERVICE);

        lastKnownNetworkLocation = locationManager.getLastKnownLocation(networkLocationProvider);
        lastKnownGPSLocation = locationManager.getLastKnownLocation(gpsLocationProvider);

        if (lastKnownGPSLocation != null) {
            Log.i(TAG, "lastKnownGPSLocation is used.");
            this.mCurrentLocation = lastKnownGPSLocation;
        } else if (lastKnownNetworkLocation != null) {
            Log.i(TAG, "lastKnownNetworkLocation is used.");
            this.mCurrentLocation = lastKnownNetworkLocation;
        } else {
            Log.e(TAG, "lastLocation is not known.");
            return;
        }

        LocationChangedEvent event = new LocationChangedEvent();
        event.setLocation(mCurrentLocation);
        EventHelper.publishEvent(event);

    } catch (SecurityException sex) {
        Log.e(TAG, "Location permission is not granted!");
    }

    return;
}

全体のMyLocationService:

public class MyLocationService extends GcmTaskService {
private static final String TAG = MyLocationService.class.getSimpleName();

private LocationManager locationManager;
private Location mCurrentLocation;

public static final String TASK_GET_LOCATION_ONCE="location_oneoff_task";
public static final String TASK_GET_LOCATION_PERIODIC="location_periodic_task";


private static final int RC_PLAY_SERVICES = 123;

@Override
public void onInitializeTasks() {
    // When your package is removed or updated, all of its network tasks are cleared by
    // the GcmNetworkManager. You can override this method to reschedule them in the case of
    // an updated package. This is not called when your application is first installed.
    //
    // This is called on your application's main thread.
    startPeriodicLocationTask(TASK_GET_LOCATION_PERIODIC,
            30L, null);
}

@Override
public int onRunTask(TaskParams taskParams) {
    Log.d(TAG, "onRunTask: " + taskParams.getTag());

    String tag = taskParams.getTag();
    Bundle extras = taskParams.getExtras();
    // Default result is success.
    int result = GcmNetworkManager.RESULT_SUCCESS;

    switch (tag) {
        case TASK_GET_LOCATION_ONCE:
            getLastKnownLocation();
            break;

        case TASK_GET_LOCATION_PERIODIC:
            getLastKnownLocation();
            break;

    }

    return result;
}


public void getLastKnownLocation() {
    Location lastKnownGPSLocation;
    Location lastKnownNetworkLocation;
    String gpsLocationProvider = LocationManager.GPS_PROVIDER;
    String networkLocationProvider = LocationManager.NETWORK_PROVIDER;

    try {
        locationManager = (LocationManager) App.get().getSystemService(Context.LOCATION_SERVICE);

        lastKnownNetworkLocation = locationManager.getLastKnownLocation(networkLocationProvider);
        lastKnownGPSLocation = locationManager.getLastKnownLocation(gpsLocationProvider);

        if (lastKnownGPSLocation != null) {
            Log.i(TAG, "lastKnownGPSLocation is used.");
            this.mCurrentLocation = lastKnownGPSLocation;
        } else if (lastKnownNetworkLocation != null) {
            Log.i(TAG, "lastKnownNetworkLocation is used.");
            this.mCurrentLocation = lastKnownNetworkLocation;
        } else {
            Log.e(TAG, "lastLocation is not known.");
            return;
        }

        LocationChangedEvent event = new LocationChangedEvent();
        event.setLocation(mCurrentLocation);
        EventHelper.publishEvent(event);

    } catch (SecurityException sex) {
        Log.e(TAG, "Location permission is not granted!");
    }

    return;
}

public static void startOneOffLocationTask(String tag, Bundle extras) {
    Log.d(TAG, "startOneOffLocationTask");

    GcmNetworkManager mGcmNetworkManager = GcmNetworkManager.getInstance(App.get());
    OneoffTask.Builder taskBuilder = new OneoffTask.Builder()
            .setService(MyLocationService.class)
            .setTag(tag);

    if (extras != null) taskBuilder.setExtras(extras);

    OneoffTask task = taskBuilder.build();
    mGcmNetworkManager.schedule(task);
}

public static void startPeriodicLocationTask(String tag, Long period, Bundle extras) {
    Log.d(TAG, "startPeriodicLocationTask");

    GcmNetworkManager mGcmNetworkManager = GcmNetworkManager.getInstance(App.get());
    PeriodicTask.Builder taskBuilder = new PeriodicTask.Builder()
            .setService(MyLocationService.class)
            .setTag(tag)
            .setPeriod(period)
            .setPersisted(true)
            .setRequiredNetwork(Task.NETWORK_STATE_CONNECTED);

    if (extras != null) taskBuilder.setExtras(extras);

    PeriodicTask task = taskBuilder.build();
    mGcmNetworkManager.schedule(task);
}




public static boolean checkPlayServicesAvailable(Activity activity) {
    GoogleApiAvailability availability = GoogleApiAvailability.getInstance();
    int resultCode = availability.isGooglePlayServicesAvailable(App.get());

    if (resultCode != ConnectionResult.SUCCESS) {
        if (availability.isUserResolvableError(resultCode)) {
            // Show dialog to resolve the error.
            availability.getErrorDialog(activity, resultCode, RC_PLAY_SERVICES).show();
        }
        return false;
    } else {
        return true;
    }
}

これら2をAndroidManifest.xmlにも追加します。

 <manifest...
 <uses-permission Android:name="Android.permission.RECEIVE_BOOT_COMPLETED" />

 <application...
 <service
        Android:name=".api.location.MyLocationService"
        Android:exported="true"
        Android:permission="com.google.Android.gms.permission.BIND_NETWORK_TASK_SERVICE">
        <intent-filter>
            <action Android:name="com.google.Android.gms.gcm.ACTION_TASK_READY" />
        </intent-filter>
    </service>
8
dorsz

Serviceを作成する必要があります。このサービスはLocationListenerを実装する必要があります。その後、一定の制限時間をおいて、サービスを呼び出すためにAlarmManagerを使用する必要があります。

私はこれがあなたに役立つことを願っています:)

7
user3515851

私は自分のコードを試してみたが成功したこれを試してみる

package com.mobeyosoft.latitudelongitude;

import Android.app.Service;
import Android.content.Context;
import Android.content.Intent;
import Android.location.Location;
import Android.location.LocationListener;
import Android.location.LocationManager;
import Android.os.Bundle;
import Android.os.IBinder;
import Android.util.Log;
import Android.widget.Toast;

/**
 * Created by 5943 6417 on 14-09-2016.
 */
public class LocationService extends Service
{
    public static final String BROADCAST_ACTION = "Hello World";
    private static final int TWO_MINUTES = 1000 * 60 * 1;
    public LocationManager locationManager;
    public MyLocationListener listener;
    public Location previousBestLocation = null;

    Context context;

    Intent intent;
    int counter = 0;

    @Override
    public void onCreate() {
        super.onCreate();
        intent = new Intent(BROADCAST_ACTION);
        context=this;
    }

    @Override
    public void onStart(Intent intent, int startId) {
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        listener = new MyLocationListener();
        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 4000, 0, listener);
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 4000, 0, listener);
    }

    @Override
    public IBinder onBind(Intent intent){
        return null;
    }

    protected boolean isBetterLocation(Location location, Location currentBestLocation) {
        if (currentBestLocation == null) {
            // A new location is always better than no location
            return true;
        }

        // Check whether the new location fix is newer or older
        long timeDelta = location.getTime() - currentBestLocation.getTime();
        boolean isSignificantlyNewer = timeDelta > TWO_MINUTES;
        boolean isSignificantlyOlder = timeDelta < -TWO_MINUTES;
        boolean isNewer = timeDelta > 0;

        // If it's been more than two minutes since the current location, use the new location
        // because the user has likely moved
        if (isSignificantlyNewer) {
            return true;
            // If the new location is more than two minutes older, it must be worse
        } else if (isSignificantlyOlder) {
            return false;
        }

        // Check whether the new location fix is more or less accurate
        int accuracyDelta = (int) (location.getAccuracy() - currentBestLocation.getAccuracy());
        boolean isLessAccurate = accuracyDelta > 0;
        boolean isMoreAccurate = accuracyDelta < 0;
        boolean isSignificantlyLessAccurate = accuracyDelta > 200;

        // Check if the old and new location are from the same provider
        boolean isFromSameProvider = isSameProvider(location.getProvider(),
                currentBestLocation.getProvider());

        // Determine location quality using a combination of timeliness and accuracy
        if (isMoreAccurate) {
            return true;
        } else if (isNewer && !isLessAccurate) {
            return true;
        } else if (isNewer && !isSignificantlyLessAccurate && isFromSameProvider) {
            return true;
        }
        return false;
    }



    /** Checks whether two providers are the same */
    private boolean isSameProvider(String provider1, String provider2) {
        if (provider1 == null) {
            return provider2 == null;
        }
        return provider1.equals(provider2);
    }



    @Override
    public void onDestroy() {
        // handler.removeCallbacks(sendUpdatesToUI);
        super.onDestroy();
        Log.v("STOP_SERVICE", "DONE");
        locationManager.removeUpdates(listener);
    }

    public static Thread performOnBackgroundThread(final Runnable runnable) {
        final Thread t = new Thread() {
            @Override
            public void run() {
                try {
                    runnable.run();
                } finally {

                }
            }
        };
        t.start();
        return t;
    }




    public class MyLocationListener implements LocationListener{

        public void onLocationChanged(final Location loc)
        {
            Log.i("**********", "Location changed");
            if(isBetterLocation(loc, previousBestLocation)) {
                loc.getLatitude();
                loc.getLongitude();
                Toast.makeText(context, "Latitude" + loc.getLatitude() + "\nLongitude"+loc.getLongitude(),Toast.LENGTH_SHORT).show();
                intent.putExtra("Latitude", loc.getLatitude());
                intent.putExtra("Longitude", loc.getLongitude());
                intent.putExtra("Provider", loc.getProvider());
                sendBroadcast(intent);

            }
        }

        public void onProviderDisabled(String provider)
        {
            Toast.makeText( getApplicationContext(), "Gps Disabled", Toast.LENGTH_SHORT ).show();
        }


        public void onProviderEnabled(String provider)
        {
            Toast.makeText( getApplicationContext(), "Gps Enabled", Toast.LENGTH_SHORT).show();
        }


        public void onStatusChanged(String provider, int status, Bundle extras)
        {

        }

    }
}
5
MukeshThakur

GoogleApiClientのLocationServices APIを使用すると、特定の時間間隔でユーザー/デバイスの現在位置を取得できます。これは、onLocationChangedコールバック時にActivityを更新するバックグラウンドサービスに追加することができます。

バックグラウンドサービスは、アプリケーションがメモリ内に存在し、通知領域に固定されている限り、実行を続けます。このサービスは以下の機能を処理します。

  • Google LocationServices APIに接続する
  • 現在地を取得する
  • 結果をアクティビティに共有する

ロケーションリスナー付きサービス

 public class LocationMonitoringService extends Service implements
    GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener,
    LocationListener {
    ...
    ...
    ...
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
    mLocationClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(LocationServices.API)
            .build();

    mLocationRequest.setInterval(10000); //10 secs
    mLocationRequest.setFastestInterval(5000); //5 secs


    int priority = LocationRequest.PRIORITY_HIGH_ACCURACY; //by default
    //PRIORITY_BALANCED_POWER_ACCURACY, PRIORITY_LOW_POWER, PRIORITY_NO_POWER are the other priority modes


    mLocationRequest.setPriority(priority);
    mLocationClient.connect();

    //Make it stick to the notification panel so it is less prone to get cancelled by the Operating System.
    return START_STICKY;
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    /*
    * LOCATION CALLBACKS
    */
    @Override
    public void onConnected(Bundle dataBundle) {
    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.

        Log.d(TAG, "== Error On onConnected() Permission not granted");
        //Permission not granted by user so cancel the further execution.
        return;
    }
    LocationServices.FusedLocationApi.requestLocationUpdates(mLocationClient, mLocationRequest, this);

     Log.d(TAG, "Connected to Google API");
     }

    /*
     * Called by Location Services if the connection to the
     * location client drops because of an error.
     */
     @Override
     public void onConnectionSuspended(int i) {
       Log.d(TAG, "Connection suspended");
     }

     @Override
     public void onConnectionFailed(ConnectionResult connectionResult) {
       Log.d(TAG, "Failed to connect to Google API");
     }

     //to get the location change
     @Override
     public void onLocationChanged(Location location) {
       Log.d(TAG, "Location changed");

       if (location != null) {               

           //Do something with the location details,             
           if (location != null) {
           //call your API
             callAPI(String.valueOf(location.getLatitude()), String.valueOf(location.getLongitude()));
           }

      }
     }
    }

詳細なソースコードと説明付きのチュートリアル全体を見る>>

4
Jayakrishnan PM

サービス開始後に必要な権限ACCESS_FINE_LOCATION、ACCESS_COARSE_LOCATIONを付与

import Android.annotation.SuppressLint;
import Android.app.Notification;
import Android.app.NotificationChannel;
import Android.app.NotificationManager;
import Android.app.PendingIntent;
import Android.app.Service;
import Android.content.Context;
import Android.content.Intent;
import Android.content.IntentSender;
import Android.location.Location;
import Android.location.LocationListener;
import Android.media.RingtoneManager;
import Android.net.Uri;
import Android.os.Build;
import Android.os.Bundle;
import Android.os.Handler;
import Android.os.IBinder;
import Android.os.Looper;
import Android.support.annotation.NonNull;
import Android.support.annotation.Nullable;
import Android.support.v4.app.NotificationCompat;
import Android.support.v7.app.AppCompatActivity;
import Android.util.Log;

import com.google.Android.gms.common.ConnectionResult;
import com.google.Android.gms.common.GoogleApiAvailability;
import com.google.Android.gms.common.api.ApiException;
import com.google.Android.gms.common.api.GoogleApiClient;
import com.google.Android.gms.common.api.ResolvableApiException;
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.location.LocationSettingsRequest;
import com.google.Android.gms.location.LocationSettingsResponse;
import com.google.Android.gms.location.LocationSettingsStatusCodes;
import com.google.Android.gms.location.SettingsClient;
import com.google.Android.gms.tasks.OnCanceledListener;
import com.google.Android.gms.tasks.OnFailureListener;
import com.google.Android.gms.tasks.OnSuccessListener;

import Java.util.concurrent.TimeUnit;

/**
 * Created by Ketan Ramani on 05/11/18.
 */

public class BackgroundLocationUpdateService extends Service implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {

    /* Declare in manifest
    <service Android:name=".BackgroundLocationUpdateService"/>
    */

    private final String TAG = "BackgroundLocationUpdateService";
    private final String TAG_LOCATION = "TAG_LOCATION";
    private Context context;
    private boolean stopService = false;

    /* For Google Fused API */
    protected GoogleApiClient mGoogleApiClient;
    protected LocationSettingsRequest mLocationSettingsRequest;
    private String latitude = "0.0", longitude = "0.0";
    private FusedLocationProviderClient mFusedLocationClient;
    private SettingsClient mSettingsClient;
    private LocationCallback mLocationCallback;
    private LocationRequest mLocationRequest;
    private Location mCurrentLocation;
    /* For Google Fused API */

    @Override
    public void onCreate() {
        super.onCreate();
        context = this;
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        StartForeground();
        final Handler handler = new Handler();
        final Runnable runnable = new Runnable() {

            @Override
            public void run() {
                try {
                    if (!stopService) {
                        //Perform your task here
                    }

                } catch (Exception e) {
                    e.printStackTrace();
                } finally {
                    if (!stopService) {
                        handler.postDelayed(this, TimeUnit.SECONDS.toMillis(10));
                    }
                }
            }
        };
        handler.postDelayed(runnable, 2000);

        buildGoogleApiClient();

        return START_STICKY;
    }

    @Override
    public void onDestroy() {
        Log.e(TAG, "Service Stopped");
        stopService = true;
        if (mFusedLocationClient != null) {
            mFusedLocationClient.removeLocationUpdates(mLocationCallback);
            Log.e(TAG_LOCATION, "Location Update Callback Removed");
        }
        super.onDestroy();
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    private void StartForeground() {
        Intent intent = new Intent(context, MainActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent, PendingIntent.FLAG_ONE_SHOT);

        String CHANNEL_ID = "channel_location";
        String CHANNEL_NAME = "channel_location";

        NotificationCompat.Builder builder = null;
        NotificationManager notificationManager = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            NotificationChannel channel = new NotificationChannel(CHANNEL_ID, CHANNEL_NAME, NotificationManager.IMPORTANCE_DEFAULT);
            channel.setLockscreenVisibility(Notification.VISIBILITY_PRIVATE);
            notificationManager.createNotificationChannel(channel);
            builder = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_ID);
            builder.setChannelId(CHANNEL_ID);
            builder.setBadgeIconType(NotificationCompat.BADGE_ICON_NONE);
        } else {
            builder = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_ID);
        }

        builder.setContentTitle("Your title");
        builder.setContentText("You are now online");
        Uri notificationSound = RingtoneManager.getActualDefaultRingtoneUri(this, RingtoneManager.TYPE_NOTIFICATION);
        builder.setSound(notificationSound);
        builder.setAutoCancel(true);
        builder.setSmallIcon(R.drawable.ic_logo);
        builder.setContentIntent(pendingIntent);
        Notification notification = builder.build();
        startForeground(101, notification);
    }

    @Override
    public void onLocationChanged(Location location) {
        Log.e(TAG_LOCATION, "Location Changed Latitude : " + location.getLatitude() + "\tLongitude : " + location.getLongitude());

        latitude = String.valueOf(location.getLatitude());
        longitude = String.valueOf(location.getLongitude());

        if (latitude.equalsIgnoreCase("0.0") && longitude.equalsIgnoreCase("0.0")) {
            requestLocationUpdate();
        } else {
            Log.e(TAG_LOCATION, "Latitude : " + location.getLatitude() + "\tLongitude : " + location.getLongitude());
        }
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {

    }

    @Override
    public void onProviderEnabled(String provider) {

    }

    @Override
    public void onProviderDisabled(String provider) {

    }

    @Override
    public void onConnected(@Nullable Bundle bundle) {
        mLocationRequest = new LocationRequest();
        mLocationRequest.setInterval(10 * 1000);
        mLocationRequest.setFastestInterval(5 * 1000);
        mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

        LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder();
        builder.addLocationRequest(mLocationRequest);
        builder.setAlwaysShow(true);
        mLocationSettingsRequest = builder.build();

        mSettingsClient
                .checkLocationSettings(mLocationSettingsRequest)
                .addOnSuccessListener(new OnSuccessListener<LocationSettingsResponse>() {
                    @Override
                    public void onSuccess(LocationSettingsResponse locationSettingsResponse) {
                        Log.e(TAG_LOCATION, "GPS Success");
                        requestLocationUpdate();
                    }
                }).addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                int statusCode = ((ApiException) e).getStatusCode();
                switch (statusCode) {
                    case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                        try {
                            int REQUEST_CHECK_SETTINGS = 214;
                            ResolvableApiException rae = (ResolvableApiException) e;
                            rae.startResolutionForResult((AppCompatActivity) context, REQUEST_CHECK_SETTINGS);
                        } catch (IntentSender.SendIntentException sie) {
                            Log.e(TAG_LOCATION, "Unable to execute request.");
                        }
                        break;
                    case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                        Log.e(TAG_LOCATION, "Location settings are inadequate, and cannot be fixed here. Fix in Settings.");
                }
            }
        }).addOnCanceledListener(new OnCanceledListener() {
            @Override
            public void onCanceled() {
                Log.e(TAG_LOCATION, "checkLocationSettings -> onCanceled");
            }
        });
    }

    @Override
    public void onConnectionSuspended(int i) {
        connectGoogleClient();
    }

    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
        buildGoogleApiClient();
    }

    protected synchronized void buildGoogleApiClient() {
        mFusedLocationClient = LocationServices.getFusedLocationProviderClient(context);
        mSettingsClient = LocationServices.getSettingsClient(context);

        mGoogleApiClient = new GoogleApiClient.Builder(context)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();

        connectGoogleClient();

        mLocationCallback = new LocationCallback() {
            @Override
            public void onLocationResult(LocationResult locationResult) {
                super.onLocationResult(locationResult);
                Log.e(TAG_LOCATION, "Location Received");
                mCurrentLocation = locationResult.getLastLocation();
                onLocationChanged(mCurrentLocation);
            }
        };
    }

    private void connectGoogleClient() {
        GoogleApiAvailability googleAPI = GoogleApiAvailability.getInstance();
        int resultCode = googleAPI.isGooglePlayServicesAvailable(context);
        if (resultCode == ConnectionResult.SUCCESS) {
            mGoogleApiClient.connect();
        }
    }

    @SuppressLint("MissingPermission")
    private void requestLocationUpdate() {
        mFusedLocationClient.requestLocationUpdates(mLocationRequest, mLocationCallback, Looper.myLooper());
    }
}

活動中

サービス開始:startService(new Intent(this, BackgroundLocationUpdateService.class));

サービスを停止してください:stopService(new Intent(this, BackgroundLocationUpdateService.class));

フラグメント

サービス開始:getActivity().startService(new Intent(getActivity().getBaseContext(), BackgroundLocationUpdateService.class));

サービスを停止してください:getActivity().stopService(new Intent(getActivity(), BackgroundLocationUpdateService.class));

2
Ketan Ramani

- コトリンバージョン

package com.ps.salestrackingapp.Services

import Android.app.Service
import Android.content.Context
import Android.content.Intent
import Android.location.Location
import Android.location.LocationManager
import Android.os.Bundle
import Android.os.IBinder
import Android.util.Log

 class LocationService : Service() {
    private var mLocationManager: LocationManager? = null

    var mLocationListeners = arrayOf(LocationListener(LocationManager.GPS_PROVIDER), LocationListener(LocationManager.NETWORK_PROVIDER))

     class LocationListener(provider: String) : Android.location.LocationListener {
        internal var mLastLocation: Location

        init {
            Log.e(TAG, "LocationListener $provider")
            mLastLocation = Location(provider)
        }

        override fun onLocationChanged(location: Location) {
            Log.e(TAG, "onLocationChanged: $location")
            mLastLocation.set(location)
            Log.v("LastLocation", mLastLocation.latitude.toString() +"  " + mLastLocation.longitude.toString())
        }

        override fun onProviderDisabled(provider: String) {
            Log.e(TAG, "onProviderDisabled: $provider")
        }

        override fun onProviderEnabled(provider: String) {
            Log.e(TAG, "onProviderEnabled: $provider")
        }

        override fun onStatusChanged(provider: String, status: Int, extras: Bundle) {
            Log.e(TAG, "onStatusChanged: $provider")
        }
    }

    override fun onBind(arg0: Intent): IBinder? {
        return null
    }

    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
        Log.e(TAG, "onStartCommand")
        super.onStartCommand(intent, flags, startId)
        return Service.START_STICKY
    }

    override fun onCreate() {
        Log.e(TAG, "onCreate")
        initializeLocationManager()
        try {
            mLocationManager!!.requestLocationUpdates(
                    LocationManager.NETWORK_PROVIDER, LOCATION_INTERVAL.toLong(), LOCATION_DISTANCE,
                    mLocationListeners[1])
        } catch (ex: Java.lang.SecurityException) {
            Log.i(TAG, "fail to request location update, ignore", ex)
        } catch (ex: IllegalArgumentException) {
            Log.d(TAG, "network provider does not exist, " + ex.message)
        }

        try {
            mLocationManager!!.requestLocationUpdates(
                    LocationManager.GPS_PROVIDER, LOCATION_INTERVAL.toLong(), LOCATION_DISTANCE,
                    mLocationListeners[0])
        } catch (ex: Java.lang.SecurityException) {
            Log.i(TAG, "fail to request location update, ignore", ex)
        } catch (ex: IllegalArgumentException) {
            Log.d(TAG, "gps provider does not exist " + ex.message)
        }

    }

    override fun onDestroy() {
        Log.e(TAG, "onDestroy")
        super.onDestroy()
        if (mLocationManager != null) {
            for (i in mLocationListeners.indices) {
                try {
                    mLocationManager!!.removeUpdates(mLocationListeners[i])
                } catch (ex: Exception) {
                    Log.i(TAG, "fail to remove location listners, ignore", ex)
                }

            }
        }
    }

    private fun initializeLocationManager() {
        Log.e(TAG, "initializeLocationManager")
        if (mLocationManager == null) {
            mLocationManager = applicationContext.getSystemService(Context.LOCATION_SERVICE) as LocationManager
        }
    }

    companion object {
        private val TAG = "BOOMBOOMTESTGPS"
        private val LOCATION_INTERVAL = 1000
        private val LOCATION_DISTANCE = 0f
    }
}
2
import Android.app.Service;
import Android.content.Context;
import Android.content.Intent;
import Android.hardware.GeomagneticField;
import Android.location.Location;
import Android.location.LocationListener;
import Android.location.LocationManager;
import Android.os.Bundle;
import Android.os.IBinder;
import Android.provider.Settings;
import Android.widget.Toast;


public class LocationService extends Service {
    private static final int MINUTES = 1000 * 60 * 2;
    public LocationManager locationManager;
    public MyLocationListener listener;
    public Location previousBestLocation = null;
    Context mContext;
    private boolean isGpsEnabled = false;
    private boolean isNetworkEnabled = false;

    private GeomagneticField geoField;
    private double latitude = 0.0;
    private double longitude = 0.0;


    @Override
    public void onCreate() {
        super.onCreate();
        mContext = getApplicationContext();
        if (locationManager == null) {
            locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);
        }
        getCurrentLocation();
    }

    private void getCurrentLocation() {
        try {
            assert locationManager != null;
            isGpsEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
            isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        if (!isGpsEnabled && !isNetworkEnabled) {
            showSettingsAlert();
        }
        listener = new MyLocationListener();

        try {
            locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 10000, 0, listener);
            locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 10000, 0, listener);
        } catch (SecurityException e) {
            e.printStackTrace();
        }
    }

    private void showSettingsAlert() {
        Toast.makeText(mContext, "GPS is disabled in your device. Please Enable it ?", Toast.LENGTH_LONG).show();
        Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        mContext.startActivity(intent);
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        return START_STICKY;
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    protected boolean isBetterLocation(Location location, Location currentBestLocation) {
        if (currentBestLocation == null) {
            return true;
        }
        long timeDelta = location.getTime() - currentBestLocation.getTime();
        boolean isSignificantlyNewer = timeDelta > MINUTES;
        boolean isSignificantlyOlder = timeDelta < -MINUTES;
        boolean isNewer = timeDelta > 0;

        if (isSignificantlyNewer) {
            return true;
        } else if (isSignificantlyOlder) {
            return false;
        }

        int accuracyDelta = (int) (location.getAccuracy() - currentBestLocation.getAccuracy());
        boolean isLessAccurate = accuracyDelta > 0;
        boolean isMoreAccurate = accuracyDelta < 0;
        boolean isSignificantlyLessAccurate = accuracyDelta > 200;
        boolean isFromSameProvider = isSameProvider(location.getProvider(), currentBestLocation.getProvider());
        if (isMoreAccurate) {
            return true;
        } else if (isNewer && !isLessAccurate) {
            return true;
        } else if (isNewer && !isSignificantlyLessAccurate && isFromSameProvider) {
            return true;
        }
        return false;
    }


    private boolean isSameProvider(String provider1, String provider2) {
        if (provider1 == null) {
            return provider2 == null;
        }
        return provider1.equals(provider2);
    }


    @Override
    public void onDestroy() {
        super.onDestroy();
        locationManager.removeUpdates(listener);
    }

    private void setupFinalLocationData(Location mLocation) {
        if (mLocation != null) {
            geoField = new GeomagneticField(
                    Double.valueOf(mLocation.getLatitude()).floatValue(),
                    Double.valueOf(mLocation.getLongitude()).floatValue(),
                    Double.valueOf(mLocation.getAltitude()).floatValue(),
                    System.currentTimeMillis()
            );

            latitude = mLocation.getLatitude();
            longitude = mLocation.getLongitude();
            //Update latitude and longtitude in SharedPreference...
        }
    }

    public class MyLocationListener implements LocationListener {
        public void onLocationChanged(final Location loc) {
            if (isBetterLocation(loc, previousBestLocation)) {
                setupFinalLocationData(loc);
            }
        }

        public void onProviderDisabled(String provider) {
        }

        public void onProviderEnabled(String provider) {
        }

        public void onStatusChanged(String provider, int status, Bundle extras) {
        }
    }
}
1
Coldfin Lab

Service and Alarm Managerを使用してアーカイブすることができますが、これには注意してください。優先順位を高く設定すると、電話機のバッテリを消耗させることになるので、実際には毎分場所に通知する必要がありますかこれは、ユーザーの居場所の大幅な変化を確認する唯一の方法であり、車や電車の中で移動しているためです。それはあなたのアプリと追跡の要件に依存するつもりだから、私は尋ねます。

0
f3rn4nd000

さてサービスを拡張するクラスを作成します。このサービスはあなたのLocationリスナークラス(Fused Location Provider)を含みます。このサービスの目的は定期的にロケーションを取得することです。

  public class LocationGetter extends Service {


    ......

    public class MyLocationListener implements GooglePlayServicesClient.ConnectionCallbacks,GooglePlayServicesClient.OnConnectionFailedListener,LocationListener, com.google.Android.gms.location.LocationListener {

   //your fused Location provider code

    }

    ......

}

次に、Broadcast Receiverを拡張するクラスを作成します。このBroadcast Receiverの目的は、電話のオン/オフ時でもサービスを再開しない場合にサービスが有効かどうかを確認することです。

ウルの活動にレシーバーを登録し、放送を聞き、ウルの必要性に応じてレジスター登録を解除します...

0
user1831682