Call newStack by navigatorId (#685)

android/app/src/main/java/com/reactnativenavigation/layouts/BottomTabsLayout.java

@@ -284,10 +284,12 @@ public class BottomTabsLayout extends BaseLayout implements AHBottomNavigation.O
 
     @Override
     public void newStack(final ScreenParams params) {
-        ScreenStack currentScreenStack = getCurrentScreenStack();
-        currentScreenStack.newStack(params, createScreenLayoutParams(params));
-        bottomTabs.setStyleFromScreen(params.styleParams);
-        EventBus.instance.post(new ScreenChangedEvent(params));
+        ScreenStack screenStack = getScreenStack(params.getNavigatorId());
+        screenStack.newStack(params, createScreenLayoutParams(params));
+        if (isCurrentStack(screenStack)) {
+            bottomTabs.setStyleFromScreen(params.styleParams);
+            EventBus.instance.post(new ScreenChangedEvent(params));
+        }
     }
 
     @Override