Add onKeyUp event to ActivityCallbacks

android/app/src/main/java/com/reactnativenavigation/controllers/ActivityCallbacks.java

 import android.content.Intent;
 import android.content.res.Configuration;
 import android.os.Bundle;
+import android.view.KeyEvent;
 
 public class ActivityCallbacks {
     public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
     public void onConfigurationChanged(Configuration newConfig) {
 
     }
+
+    public void onKeyUp(int keyCode, KeyEvent event) {
+
+    }
+
 }

android/app/src/main/java/com/reactnativenavigation/controllers/NavigationActivity.java

 
     @Override
     public boolean onKeyUp(int keyCode, KeyEvent event) {
+        NavigationApplication.instance.getActivityCallbacks().onKeyUp(keyCode, event);
         return getReactGateway().onKeyUp(getCurrentFocus(), keyCode) || super.onKeyUp(keyCode, event);
     }