// With this layer configuration we enable only the listed layers.
// All the other layers including the default layers will be disabled.
ArrayList<LayerConfiguration.Feature> features = new ArrayList<>();
features.add(LayerConfiguration.Feature.DETAIL_RENDERING);
features.add(LayerConfiguration.Feature.RENDERING);
features.add(LayerConfiguration.Feature.OFFLINE_SEARCH);
LayerConfiguration layerConfiguration = new LayerConfiguration();
layerConfiguration.enabledFeatures = features;

// With this layer configuration we enable only the listed layers.
// All the other layers including the default layers will be disabled.
val features = ArrayList<LayerConfiguration.Feature>()
features.add(LayerConfiguration.Feature.DETAIL_RENDERING)
features.add(LayerConfiguration.Feature.RENDERING)
features.add(LayerConfiguration.Feature.OFFLINE_SEARCH)
val layerConfiguration = LayerConfiguration()
layerConfiguration.enabledFeatures = features

AuthenticationMode authenticationMode = AuthenticationMode.withKeySecret(accessKeyID, accessKeySecret);
SDKOptions options = new SDKOptions(authenticationMode);
options.layerConfiguration = layerConfiguration;
// Now use this SDKOptions for initializing a new SDKNativeEngine instance.

val authenticationMode = AuthenticationMode.withKeySecret(
    accessKeyID, accessKeySecret
)
val options = SDKOptions(authenticationMode)
options.layerConfiguration = layerConfiguration
// Now use this SDKOptions for initializing a new SDKNativeEngine instance.

try {
    AuthenticationMode authenticationMode = AuthenticationMode.withKeySecret(accessKeyID, accessKeySecret);
    SDKOptions options = new SDKOptions(authenticationMode);
    options.layerConfiguration = layerConfiguration;
    // Invoking makeSharedInstance will invalidate any existing references to the previous instance of SDKNativeEngine.
    // It will also destroy the previous SDKNativeEngine.
    SDKNativeEngine.makeSharedInstance(context, options);
    // Update the current MapView instance to recreate the rendering surface that was invalidated by the invocation of makeSharedInstance.
    updateMapView(savedInstanceState);
    // Reinitialize the map updater and perform feature update internally to "normalize" the new layer configuration.
    // Normalization, in this context, is the process of aligning the currently downloaded layer group configuration in the map data with the requested one.
    // Layer groups that are not in the requested layer configuration are removed and layer groups that were added to the requested configuration are downloaded.
    initMapUpdater(SDKNativeEngine.getSharedInstance());

    // Reinitialize other necessary engines as required.

} catch (InstantiationErrorException e) {
    throw new RuntimeException("Reinitialization failed: " + e.error.name());
} catch (Exception e) {
    e.printStackTrace();
}

try {
    val authenticationMode = AuthenticationMode.withKeySecret(
        accessKeyID, accessKeySecret
    )
    val options = SDKOptions(authenticationMode)
    options.layerConfiguration = layerConfiguration

    // Invoking makeSharedInstance will invalidate any existing references to the previous instance of SDKNativeEngine.
    // It will also destroy the previous SDKNativeEngine.
    SDKNativeEngine.makeSharedInstance(context, options)

    // Update the current MapView instance to recreate the rendering surface that was invalidated by the invocation of makeSharedInstance.
    updateMapView(savedInstanceState)

    // Reinitialize the map updater and perform feature update internally to "normalize" the new layer configuration.
    // Normalization, in this context, is the process of aligning the currently downloaded layer group configuration in the map data with the requested one.
    // Layer groups that are not in the requested layer configuration are removed and layer groups that were added to the requested configuration are downloaded.
    initMapUpdater(SDKNativeEngine.getSharedInstance())

    // Reinitialize other necessary engines as required.

} catch (e: InstantiationErrorException) {
    throw RuntimeException("ReInitialization of HERE SDK failed: " + e.error.name)
} catch (e: Exception) {
    e.printStackTrace()
}

private void updateMapView(Bundle savedInstanceState) {
    // Needs to be called after recreation of SDKNativeEngine, even when savedInstanceState is null.
    // Otherwise, the map view will keep using the previous SDKNativeEngine instance.
    mapView.onCreate(savedInstanceState);
    // Since mapview.onCreate() results in a new rendering surface, the map scene must be reloaded to ensure proper rendering.
    mapView.getMapScene().loadScene(MapScheme.NORMAL_DAY, new MapScene.LoadSceneCallback() {
        @Override
        public void onLoadScene(@Nullable MapError mapError) {
            ...
        }
    });
}

private fun updateMapView(savedInstanceState: Bundle?) {
    // Needs to be called after recreation of SDKNativeEngine, even when savedInstanceState is null.
    // Otherwise, the map view will keep using the previous SDKNativeEngine instance.
    mapView.onCreate(savedInstanceState)

    // Since mapview.onCreate() results in a new rendering surface, the map scene must be reloaded to ensure proper rendering.
    mapView.mapScene.loadScene(
        MapScheme.NORMAL_DAY
    ) { mapError ->
        ....
    }
}

private void initMapUpdater(SDKNativeEngine sdkNativeEngine) {
    MapUpdater.fromEngineAsync(sdkNativeEngine, new MapUpdaterConstructionCallback() {
        @Override
        public void onMapUpdaterConstructe(@NonNull MapUpdater mapUpdater) {
            OfflineMapsExample.this.mapUpdater = mapUpdater;
            // Checks and updates in cases of map feature configuration changes.
            // Perform the map update ...
        }
    });
}

private fun initMapUpdater(sdkNativeEngine: SDKNativeEngine) {
    MapUpdater.fromEngineAsync(sdkNativeEngine, object : MapUpdaterConstructionCallback {
        override fun onMapUpdaterConstructe(mapUpdater: MapUpdater) {
            [email protected] = mapUpdater
            // Checks and updates in cases of map feature configuration changes.
            // Perform the map update ...
        }
    })
}

ArrayList<LayerConfiguration.Feature> features = new ArrayList<>();
features.add(LayerConfiguration.Feature.DETAIL_RENDERING);
features.add(LayerConfiguration.Feature.RENDERING);
features.add(LayerConfiguration.Feature.OFFLINE_SEARCH);
LayerConfiguration layerConfiguration = new LayerConfiguration();
layerConfiguration.enabledFeatures = features;
layerConfiguration.implicitlyPrefetchedFeatures = features;

// With this layer configuration we enable only the listed layers.
// All the other layers including the default layers will be disabled.
val features = ArrayList<LayerConfiguration.Feature>()
features.add(LayerConfiguration.Feature.DETAIL_RENDERING)
features.add(LayerConfiguration.Feature.RENDERING)
features.add(LayerConfiguration.Feature.OFFLINE_SEARCH)
val layerConfiguration = LayerConfiguration()
layerConfiguration.enabledFeatures = features
layerConfiguration.implicitlyPrefetchedFeatures = features