Question

根据Android文档：

Google位置服务API，Google Play服务的一部分，提供更强大的自动高级框架处理位置提供者，用户移动和位置准确性 android.location中的平台位置API。

但是使用融合位置提供程序（来自Google Play服务中的位置API）我不知道如何检查用户是否启用了位置。

使用旧 android.location很简单：

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

但我不想同时使用Google Play服务融合位置提供程序和旧 android位置。

我如何检查用户是否使用融合位置提供商启用了该位置？

提前致谢。

Answer 1

This android developer training tutorial could help - 这是基础知识：

在您的Activity 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;
    }
}

请记住在课堂上实施这些内容：

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....
 */

 }

<强> Good explanation here in this Google developer link.

干杯！

Answer 2

请参阅SettingsApi：检查您的位置请求，然后确保根据应用的位置需求正确配置设备的系统设置。

Answer 3

与2019年一样

最新，最好和最短的方式是

    public void booleanisLocationEnabled()
    {
     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 4

您还可以像这样检查：

LocationManager service = (LocationManager) getSystemService(LOCATION_SERVICE);
boolean isEnabled = service.isProviderEnabled(LocationManager.GPS_PROVIDER);

Answer 5

如果使用FusedLocationProviderClient，首先，我们需要检查设备中的“位置信息”已启用。

private fun isLocationEnabled(): Boolean {
    val activity: Activity? = this.activity
    val lm = activity?.getSystemService(Context.LOCATION_SERVICE) as? LocationManager
    if (lm != null) {
        val enabled = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
            lm.isLocationEnabled
        } else {
            lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER)
                    || lm.isProviderEnabled(LocationManager.GPS_PROVIDER)
        }
        Log.d(TAG, "isLocationServiceEnabled", enabled)
        return enabled
    }
    return false
}

然后，检查LocationSettings。

val request = LocationRequest.create()
        .setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY)

val settingRequest = LocationSettingsRequest.Builder()
        .addLocationRequest(request)
        .build()
// check Location settings for the request
LocationServices.getSettingsClient(context)
        .checkLocationSettings(settingRequest)
        .addOnSuccessListener {
            // OK!!
            // fusedLocationProviderClient.requestLocationUpdates
        }
        .addOnFailureListener {  exception ->
            if (exception  is ResolvableApiException) {
                try {
                    exception.startResolutionForResult(activity, RC_LOCATION_SETTINGS)
                } catch (ex: IntentSender.SendIntentException) {
                    // ignore
                }
            } else {
                // handle other errors
                showFusedDisabledDialog()
            }
        }

也，请检查以下链接。

https://developer.android.com/training/location/change-location-settings

Android：使用融合位置提供商

5 个答案: