Android：检查是否使用Fused Location Provider启用了位置服务

Question

根据Android文档：

谷歌定位服务API是谷歌Play服务的一部分，它提供了一个更强大、更高级的框架，可以自动处理定位提供者、用户移动和定位精度，而不是android中的平台定位API。位置。

但是使用融合的位置提供者（来自Google Play services中的位置API），我不知道如何检查用户是否启用或禁用了位置。

使用旧的android。位置很简单：

locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

但我不想同时使用Google Play服务融合的位置提供商和旧的android位置。

如何检查用户是否使用融合位置提供程序启用了该位置？

提前谢谢。

Answer 1

现在是2020年

最新、最佳和最短的路是

    public boolean isLocationEnabled()
    {
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
// This is new method provided in API 28
                    LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
                    return lm.isLocationEnabled();
                } else {
// This is Deprecated in API 28
                    int mode = Settings.Secure.getInt(context.getContentResolver(), Settings.Secure.LOCATION_MODE,
                            Settings.Secure.LOCATION_MODE_OFF);
                    return  (mode != Settings.Secure.LOCATION_MODE_OFF);

                }
    }

Answer 2

请参阅设置SAPI：检查您的位置请求，然后确保设备的系统设置已正确配置，以满足应用程序的位置需求。

Answer 3

这个android开发人员培训教程可能会有所帮助-以下是基础知识：

要在活动onCreate（）中运行的代码：

 // Create an instance of GoogleAPIClient.
    if (mGoogleApiClient == null) {
        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this)
                .addOnConnectionFailedListener(this)
                .addApi(LocationServices.API)
                .build();
    }

    mGoogleApiClient.connect();

    LocationRequest mLocationRequest = new LocationRequest();
    mLocationRequest.setInterval(10000);
    mLocationRequest.setFastestInterval(5000);
    mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

    LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder()
            .addLocationRequest(mLocationRequest);

    PendingResult<LocationSettingsResult> result =
            LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient, builder.build());

    result.setResultCallback(new ResultCallback<LocationSettingsResult>() {
        @Override
        public void onResult(LocationSettingsResult locationSettingsResult) {

            final Status status = locationSettingsResult.getStatus();
            final LocationSettingsStates LS_state = locationSettingsResult.getLocationSettingsStates();
            switch (status.getStatusCode()) {
                case LocationSettingsStatusCodes.SUCCESS:
                    // All location settings are satisfied. The client can initialize location
                    // requests here.

                    break;
                case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                    // Location settings are not satisfied. But could be fixed by showing the user
                    // a dialog.
                    try {
                        // Show the dialog by calling startResolutionForResult(),
                        // and check the result in onActivityResult().
                        status.startResolutionForResult(LocationByGPS.this, REQUEST_CHECK_SETTINGS);

                    } catch (IntentSender.SendIntentException e) {
                        // Ignore the error.
                    }
                    break;
                case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                    // Location settings are not satisfied. However, we have no way to fix the
                    // settings so we won't show the dialog.

                    break;
            }
        }
    });

覆盖此方法：

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    final LocationSettingsStates states = LocationSettingsStates.fromIntent(data);
    switch (requestCode) {
        case REQUEST_CHECK_SETTINGS:
            switch (resultCode) {
                case Activity.RESULT_OK:
                    // All required changes were successfully made
                    GetUserLocation();//FINALLY YOUR OWN METHOD TO GET YOUR USER LOCATION HERE
                    break;
                case Activity.RESULT_CANCELED:
                    // The user was asked to change settings, but chose not to

                    break;
                default:
                    break;
            }
            break;
    }
}

记住在你的课堂上实现这些：

public class MyClass extends AppCompatActivity implements
    ActivityCompat.OnRequestPermissionsResultCallback,
    GoogleApiClient.ConnectionCallbacks,
    GoogleApiClient.OnConnectionFailedListener{

  protected static final int REQUEST_CHECK_SETTINGS = 0x1;


  /* 
     your code i.e. with the above code etc....
 */

 }

在这个Google开发者链接中进行了很好的解释。

干杯