merged

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

         layout.newStack(params);
     }
 
+    public boolean containsNavigator(String navigatorId) {
+        return layout.containsNavigator(navigatorId);
+    }
+
     @Override
     public void destroy() {
         layout.destroy();

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

         this.activity = activity;
     }
 
+    public boolean containsNavigator(String navigatorId) {
+        for (Modal modal : stack) {
+            if (modal.containsNavigator(navigatorId)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
     public void showModal(ScreenParams screenParams) {
         Modal modal = new Modal(activity, this, screenParams);
         modal.show();

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

     }
 
     void push(ScreenParams params) {
-        if (modalController.isShowing()) {
+        if (modalController.containsNavigator(params.getNavigatorId())) {
             modalController.push(params);
         } else {
             layout.push(params);
     }
 
     void pop(ScreenParams params) {
-        if (modalController.isShowing()) {
+        if (modalController.containsNavigator(params.getNavigatorId())) {
             modalController.pop(params);
         } else {
             layout.pop(params);
     }
 
     void popToRoot(ScreenParams params) {
-        if (modalController.isShowing()) {
+        if (modalController.containsNavigator(params.getNavigatorId())) {
             modalController.popToRoot(params);
         } else {
             layout.popToRoot(params);
     }
 
     void newStack(ScreenParams params) {
-        if (modalController.isShowing()) {
+        if (modalController.containsNavigator(params.getNavigatorId())) {
             modalController.newStack(params);
         } else {
             layout.newStack(params);

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

         EventBus.instance.post(new ScreenChangedEvent(getCurrentScreenStack().peek().getScreenParams()));
     }
 
+    @Override
+    public boolean containsNavigator(String navigatorId) {
+        // Unused
+        return false;
+    }
+
     public void selectBottomTabByTabIndex(Integer index) {
         bottomTabs.setCurrentItem(index);
     }

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

     void showSnackbar(SnackbarParams params);
 
     void onModalDismissed();
+
+    boolean containsNavigator(String navigatorId);
 }

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

         EventBus.instance.post(new ScreenChangedEvent(stack.peek().getScreenParams()));
     }
 
+    @Override
+    public boolean containsNavigator(String navigatorId) {
+        return stack.getNavigatorId().equals(navigatorId);
+    }
+
     @Override
     public boolean onTitleBarBackButtonClick() {
         if (leftButtonOnClickListener != null) {

package.json

 {
   "name": "react-native-navigation",
-  "version": "2.0.0-experimental.110",
+  "version": "2.0.0-experimental.111",
   "description": "React Native Navigation - truly native navigation for iOS and Android",
   "license": "MIT",
   "nativePackage": true,