融合位置即使在设备开启时也能提供超过 2000 的精度高精度

Question

我创建了全局 class 来获取我的项目的当前位置。每当用户在 Activity.

上按下按钮时，我都会得到 Location

public class Get_Current_Location implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
    GoogleApiClient apiClient;
    Location CurrentLocation;
    LocationRequest locationRequest;
    Context context;
    Interface_For_Location getLocation;
    String TAG = "###Current Location###";


    public Get_Current_Location(Context context,Interface_For_Location location) {
        this.context = context;
        this.getLocation=location;
        apiClient = new GoogleApiClient.Builder(context)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();
        Log.d(TAG, "Google API BUILD Successfully " + apiClient);
        apiClient.connect();
        setLocationRequest();
    }

    @Override
    public void onConnected(@Nullable Bundle bundle) {
        Log.d(TAG,"On Connected Calling");

        startLocationUpdate();
    }

    @Override
    public void onConnectionSuspended(int i) {

    }

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

    }

    @Override
    public void onLocationChanged(Location location) {
        Log.d(TAG,"On Location Changed Calling ");
        Log.d(TAG,"Updated Location OnLocationChnaged "+location);
        CurrentLocation=location;
        getLocation.currentLoc(CurrentLocation);
        stopLocationUpdates();
    }

    public void startLocationUpdate() {
        Log.d(TAG,"Start Location Update Calling ");
        if (ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        LocationServices.FusedLocationApi.requestLocationUpdates(apiClient, locationRequest, this);
    }

    private void stopLocationUpdates(){
        LocationServices.FusedLocationApi.removeLocationUpdates(apiClient,this);
    }

    private void setLocationRequest(){
        Log.d(TAG,"Set Location Update Request Calling");
        locationRequest=new LocationRequest();
        locationRequest.setInterval(10*60*1000);
        locationRequest.setFastestInterval(10*60*1000);
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
        locationRequest.setNumUpdates(1);
    }    
}

我在调用 class 时通过界面获取位置。我必须显示 50 米以下的两个设备的距离，但每当我尝试获取彼此相邻的设备的位置时，两者都会产生超过 2000 的精度。由于这种低精度水平，我无法检测到相邻的设备彼此。

请指导我将此精度级别设置为低于 100，以便我可以检测到 59 米以下的设备。

Answer 1

有时，设备需要一些时间才能找到合适的位置（GPS 或网络），因此您可能会在短时间内获得非常不准确的点。您需要为所需的精度级别添加过滤器，并且仅在获得所需的点时才关闭位置更新。以下是如何执行此操作的示例：

@Override
public void onLocationChanged(Location location) {
    Log.d(TAG,"On Location Changed Calling ");
    if (location.getAccuracy() <= MIN_ACCURACY) {
        Log.d(TAG,"Updated Location OnLocationChnaged "+location);
        CurrentLocation=location;
        getLocation.currentLoc(CurrentLocation);
        stopLocationUpdates();
    }
    //Else don't stop the update until a location with good accuracy is received.
}

融合位置即使在设备开启时也能提供超过 2000 的精度高精度

Fused location giving accuracy more than 2000 even when device is on High accuracy

gps

android

location

fusedlocationproviderapi

融合位置即使在设备开启时也能提供超过 2000 的精度 高精度

Fused location giving accuracy more than 2000 even when device is on High accuracy

gps

android

location

fusedlocationproviderapi

融合位置即使在设备开启时也能提供超过 2000 的精度高精度