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android - 从服务中的 FusedLocation 获取最后一个位置

问题描述

我试图在我的服务中获取最后位置（），女巫每分钟都在开始。如我所见， fusedLocation 需要Activityor Executorin .addOnSuccessListener()。我怎样才能在服务中获得它？

LocationCheckService.class

public class LocationCheckService extends Service{

    private FusedLocationProviderClient mFusedLocationClient;

    @Override
    public void onCreate() {
        super.onCreate();
        mFusedLocationClient = LocationServices.getFusedLocationProviderClient(this);
        mFusedLocationClient.getLastLocation()
                .addOnSuccessListener(this, new OnSuccessListener<Location>() {
                    @Override
                    public void onSuccess(Location location) {
                        // Got last known location. In some rare situations this can be null.
                        if (location != null) {

                        }
                    }
                });
    }

    @SuppressLint("MissingPermission")
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {

        return START_STICKY;
    }

标签： androidgpslocationfusedlocationproviderapi

解决方案

您不需要 GoogleApiClient -

首先在 gradle 添加 -

implementation 'com.google.android.gms:play-services-location:15.0.0'

在 Android 清单中 -

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

而不是创建一个服务来获取位置更新 -

public class LocationUpdateService extends Service {

    private FusedLocationProviderClient client;
    private LocationRequest locationRequest;


    @Override
    public void onCreate() {
        super.onCreate();
        client = LocationServices.getFusedLocationProviderClient(this);
        locationRequest = LocationRequest.create();
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        locationRequest.setInterval(0);
        locationRequest.setFastestInterval(0);
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        try {
            client.requestLocationUpdates(locationRequest, locationCallback, null);
        } catch (SecurityException ignore) {
            Log.e("AppLocationService", "SecurityException - " + ignore.toString(), ignore);
        }
        return START_STICKY;
    }

    private final LocationCallback locationCallback = new LocationCallback() {

        @Override
        public void onLocationResult(LocationResult locationResult) {
            List<Location> locationList = locationResult.getLocations();
            if (locationList.size() != 0) {
                Location location = locationList.get(0);
                Log.e("AppLocationService", "Latitude  - " +location.getLatitude()+", longitude  - " +location.getLongitude() );
            }
        }
    };


    @Override
    public IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        return null;
    }


}

要获取活动更新，您可以使用 LocalBroadCast 或可以在活动中使用的相同代码

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