Question

我想从GPS提供商和网络提供商那里获取位置信息。我写了下面的代码，并在6以下的android系统中正常工作，并且在android 4.2中进行了检查，并且一切正确，但是当我在android 8中进行检查直到GPS开启时，一切正常，并且可以通过网络或GPS获得位置。但是当GPS关闭时，我无法通过网络提供商获取位置。我的问题是什么，我该如何解决？是否在API 23+上需要启用GPS才能获取位置？我需要在设备设置中启用一个选项吗？

public void createLocation(){
locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
gpsLocListener = new MyLocationListener();
networkLocListener = new MyLocationListener();
}

...
 public static void checkLocation() {
    if (Build.VERSION.SDK_INT >= 23) {
        if ((ContextCompat.checkSelfPermission(context, android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) && ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
            locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, networkLocListener);
        }
    } else {
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, networkLocListener);
    }

    if (!FIND_LOC_ByY_GPS) {
        if (Build.VERSION.SDK_INT >= 23) {
            if ((ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED)&& ContextCompat.checkSelfPermission(context, android.Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
                locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, networkLocListener);                }
        } else {
            locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, networkLocListener);            }
        //locationManager.requestLocationUpdates(locationManager.PASSIVE_PROVIDER,0,0,passiveLocListener);
    }
}

public static class MyLocationListener implements LocationListener {

    public MyLocationListener() {
    }

    @Override
    public void onLocationChanged(Location location) {
        if (location != null && !callLocationUpdate) {
            //Speed
            //if (calculateSpeedUser(location) < 13.8889) {
            try {
                removeLocationUpdate();
                callLocationUpdate = true;
                if (DEBUG_BASEACTIVITY)
                    Log.e("GPS Location Changed!", "onLocationChanged/BaseActivity");

            } catch (SecurityException e) {
                Log.e("PERMISSION_EXCEPTION", "PERMISSION_NOT_GRANTED");
            }
            //}
            get_location_by_LocationUpdate_method = true;
            doLocationUpdate(location, true);
            getByLocationUpdate = true;
        }
    }

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

    }

    @Override
    public void onProviderEnabled(String provider) {

    }

    @Override
    public void onProviderDisabled(String provider) {

    }
}

无法在Oreo中通过网络提供商获取位置

0 个答案: