Add toolbar toggle, not sure if animation is working

android/app/src/main/java/com/reactnativenavigation/activities/BaseReactActivity.java

     public void toggleTabs(ReadableMap params) {
         return;
     }
+
+    public void toggleNavigationBar(ReadableMap params) {
+        if (mToolbar == null) {
+            return;
+        }
+
+        boolean hide = params.getBoolean(KEY_HIDDEN);
+        boolean animated = params.getBoolean(KEY_ANIMATED);
+        if (hide) {
+            mToolbar.hideToolbar(animated);
+        } else {
+            mToolbar.showToolbar(animated);
+        }
+    }
 }

android/app/src/main/java/com/reactnativenavigation/modules/RctActivityModule.java

         });
     }
 
+    @ReactMethod
+    public void toggleNavigationBar(final ReadableMap params) {
+        final BaseReactActivity context = ContextProvider.getActivityContext();
+        if (context == null || context.isFinishing()) {
+            return;
+        }
+        context.runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                context.toggleNavigationBar(params);
+            }
+        });
+    }
+
     @ReactMethod
     public void toggleNavigatorTabs(final ReadableMap params) {
         final BaseReactActivity context = ContextProvider.getActivityContext();

android/app/src/main/java/com/reactnativenavigation/views/RnnToolBar.java

  */
 public class RnnToolBar extends Toolbar {
 
+    private static final int ANIMATE_DURATION = 180;
+
     private List<Screen> mScreens;
     private AsyncTask mSetupToolbarTask;
     private Drawable mBackground;
         } else {
             resetTitleTextColor();
         }
-        
+
         if (screen.toolBarHidden != null && screen.toolBarHidden) {
             hideToolbar();
         } else {
         }
     }
 
-    private void showToolbar() {
+    public void showToolbar(boolean animated) {
         ActionBar actionBar = ((AppCompatActivity) getContext()).getSupportActionBar();
         if (actionBar != null) {
+            actionBar.setShowHideAnimationEnabled(animated);
             actionBar.show();
         }
     }
 
-    private void hideToolbar() {
+    public void hideToolbar(boolean animated) {
         ActionBar actionBar = ((AppCompatActivity) getContext()).getSupportActionBar();
         if (actionBar != null) {
+            actionBar.setShowHideAnimationEnabled(animated);
             actionBar.hide();
         }
     }
 
+    private void showToolbar() {
+        showToolbar(false);
+    }
+
+    private void hideToolbar() {
+        hideToolbar(false);
+    }
+
     @SuppressWarnings({"ConstantConditions"})
     public void showBackButton(Screen screen) {
         ActionBar actionBar = ContextProvider.getActivityContext().getSupportActionBar();

src/platformSpecific.android.js

   });
 }
 
+function navigatorToggleNavBar(navigator, params) {
+  RctActivity.toggleNavigationBar({
+    hidden: params.to === 'hidden',
+    animated: !(params.animated === false)
+  });
+}
+
 function navigatorToggleTabs(navigator, params) {
   RctActivity.toggleNavigatorTabs({
-    hidden: params.to == 'hidden',
+    hidden: params.to === 'hidden',
     animated: !(params.animated === false)
   });
 }
   navigatorSetTabBadge,
   navigatorSetTitle,
   navigatorSwitchToTab,
-  navigatorToggleTabs
+  navigatorToggleTabs,
+  navigatorToggleNavBar
 }