Update fab when modal is dismissed

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

 
 import android.support.v7.app.AppCompatActivity;
 
+import com.reactnativenavigation.events.EventBus;
+import com.reactnativenavigation.events.ModalDismissedEvent;
 import com.reactnativenavigation.layouts.ScreenStackContainer;
 import com.reactnativenavigation.params.ScreenParams;
 import com.reactnativenavigation.params.TitleBarButtonParams;
     @Override
     public void onModalDismissed(Modal modal) {
         stack.remove(modal);
+        EventBus.instance.post(new ModalDismissedEvent());
     }
 
     public void setTopBarVisible(String screenInstanceId, boolean hidden, boolean animated) {

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

 
 import com.facebook.react.modules.core.DefaultHardwareBackBtnHandler;
 import com.reactnativenavigation.NavigationApplication;
+import com.reactnativenavigation.events.Event;
+import com.reactnativenavigation.events.EventBus;
+import com.reactnativenavigation.events.ModalDismissedEvent;
+import com.reactnativenavigation.events.Subscriber;
 import com.reactnativenavigation.layouts.BottomTabsLayout;
 import com.reactnativenavigation.layouts.Layout;
 import com.reactnativenavigation.layouts.LayoutFactory;
 
 import java.util.List;
 
-public class NavigationActivity extends AppCompatActivity implements DefaultHardwareBackBtnHandler, ReactGateway.OnJsDevReloadListener {
+public class NavigationActivity extends AppCompatActivity implements DefaultHardwareBackBtnHandler, ReactGateway.OnJsDevReloadListener, Subscriber {
 
     /**
      * Although we start multiple activities, we make sure to pass Intent.CLEAR_TASK | Intent.NEW_TASK
 
         currentActivity = this;
         NavigationApplication.instance.getReactGateway().onResumeActivity(this, this, this);
+        EventBus.instance.register(this);
     }
 
     @Override
         super.onPause();
         currentActivity = null;
         NavigationApplication.instance.getReactGateway().onPauseActivity();
+        EventBus.instance.unregister(this);
     }
 
     @Override
     public void showSnackbar(SnackbarParams params) {
         layout.showSnackbar(params);
     }
+
+    @Override
+    public void onEvent(Event event) {
+        if (event.getType() == ModalDismissedEvent.TYPE) {
+            layout.onModalDismissed();
+        }
+    }
 }

android/app/src/main/java/com/reactnativenavigation/events/ModalDismissedEvent.java

+package com.reactnativenavigation.events;
+
+public class ModalDismissedEvent implements Event {
+    public static final String TYPE = "ModalDismissedEvent";
+
+    @Override
+    public String getType() {
+        return TYPE;
+    }
+}

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

         snackbarAndFabContainer.showSnackbar(eventId, params);
     }
 
+    @Override
+    public void onModalDismissed() {
+        EventBus.instance.post(new ScreenChangedEvent(getCurrentScreenStack().peek().getScreenParams()));
+    }
+
     public void selectBottomTabByTabIndex(Integer index) {
         bottomTabs.setCurrentItem(index);
     }

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

     void setSideMenuVisible(boolean animated, boolean visible);
 
     void showSnackbar(SnackbarParams params);
+
+    void onModalDismissed();
 }

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

         snackbarAndFabContainer.showSnackbar(navigatorEventId, params);
     }
 
+    @Override
+    public void onModalDismissed() {
+        EventBus.instance.post(new ScreenChangedEvent(stack.peek().getScreenParams()));
+    }
+
     @Override
     public boolean onTitleBarBackButtonClick() {
         if (leftButtonOnClickListener != null) {