Question

你好我是Android开发的新手我需要在后台任务中每15分钟获取一次用户位置我已经使用googleapiclient获取位置更新当gps关闭时如何使用融合api客户端获取位置更新有什么办法ola cabs使用的应用程序如何使用任何人帮助我让我发布我到目前为止尝试的代码：

public class Locationlistener implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener,LocationListener  {


    private Location mlocation; // location
    private double latitude; // latitude
    private double longitude; // longitude
    private GoogleApiClient mGAC;
    private Context mContext;
    public static final String TAG = "GPSresource";
    private FusedLocationProviderApi fusedLocationProviderApi;
    private LocationRequest locationRequest;

    public Locationlistener(Context c)
    {
        mContext = c;
        try {
            buildGoogleApiClient();
            mGAC.connect();
        }
        catch(Exception e)
        {
            Log.d(TAG,e.toString());
        }
    }

    protected synchronized void buildGoogleApiClient() {
        locationRequest = LocationRequest.create();
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        locationRequest.setInterval(1);
        locationRequest.setFastestInterval(1);
        fusedLocationProviderApi = LocationServices.FusedLocationApi;
        mGAC = new GoogleApiClient.Builder(mContext)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();
       }


    public double getLatitude(){
        if(mlocation != null){
            latitude = mlocation.getLatitude();
        }

        // return latitude
        return latitude;
    }

    /**
     * Function to get longitude
     * */
    public double getLongitude() {
        if (mlocation != null) {
            longitude = mlocation.getLongitude();
        }

        // return longitude
        return longitude;
    }

    public Location GetLocationBlocking() throws InterruptedException {



        //      String lat=String.valueOf(moCurrentLocation.getLatitude());
        //    String longt=String.valueOf(moCurrentLocation.getLongitude());
//        Toast.makeText(oContext,"Lat"+lat+"long"+longt,Toast.LENGTH_SHORT).show();
        return mlocation;

    }


    @Override
    public void onConnected(Bundle bundle) {
        if (mGAC != null) {

            Location oLocation = LocationServices.FusedLocationApi.getLastLocation(mGAC);
            mlocation = oLocation;
            getLatitude();
            getLongitude();
            if (oLocation != null){
              Log.d("lat",String.valueOf(mlocation.getLatitude()));
            Log.d("long",String.valueOf(mlocation.getLongitude()));
            }
            else{
                LocationServices.FusedLocationApi.requestLocationUpdates(mGAC, locationRequest, this);
        }   }}


    @Override
    public void onConnectionSuspended(int i) {

    }




    @Override
    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {

    }

    @Override
    public void onLocationChanged(Location location) {
        mlocation=location;
    }
}

如果提前感谢，即使关闭gps，如何使其正常工作!!

Answer 1

尝试

PRIORITY_LOW_POWER

而不是

PRIORITY_HIGH_ACCURACY

最后一个将尝试使用GPS上的网络位置。我不知道你在Manifest.xml中定义了什么，但如果你定义了

ACCESS_FINE_LOCATION

我会改变它

ACCESS_COARSE_LOCATION

即使用户强行关闭gps，如何使用fusedloaction api在后台获取位置信息？

1 个答案: