TopBar background component lifecycle methods

lib/android/app/src/main/java/com/reactnativenavigation/parse/LayoutFactory.java

 import com.reactnativenavigation.viewcontrollers.bottomtabs.BottomTabsController;
 import com.reactnativenavigation.viewcontrollers.externalcomponent.ExternalComponentCreator;
 import com.reactnativenavigation.viewcontrollers.externalcomponent.ExternalComponentViewController;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.viewcontrollers.toptabs.TopTabsController;
 import com.reactnativenavigation.views.ComponentViewCreator;
         StackController stackController = new StackController(activity,
                 new TitleBarButtonCreator(reactInstanceManager),
                 new TitleBarReactViewCreator(reactInstanceManager),
-                new TopBarBackgroundViewCreator(reactInstanceManager),
+                new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreator(reactInstanceManager)),
                 new TopBarController(),
                 node.id,
                 getOptions(node)

lib/android/app/src/main/java/com/reactnativenavigation/viewcontrollers/StackController.java

 import com.reactnativenavigation.anim.NavigationAnimator;
 import com.reactnativenavigation.parse.Options;
 import com.reactnativenavigation.utils.NoOpPromise;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.Component;
 import com.reactnativenavigation.views.ReactComponent;
 import com.reactnativenavigation.views.StackLayout;
-import com.reactnativenavigation.views.topbar.TopBar;
 import com.reactnativenavigation.views.titlebar.TitleBarReactViewCreator;
-import com.reactnativenavigation.views.topbar.TopBarBackgroundViewCreator;
+import com.reactnativenavigation.views.topbar.TopBar;
 
 import java.util.Collection;
 import java.util.Iterator;
     private final NavigationAnimator animator;
     private final ReactViewCreator topBarButtonCreator;
     private final TitleBarReactViewCreator titleBarReactViewCreator;
-    private TopBarBackgroundViewCreator topBarBackgroundViewCreator;
+    private TopBarBackgroundViewController topBarBackgroundViewController;
     private TopBarController topBarController;
 
-    public StackController(final Activity activity, ReactViewCreator topBarButtonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewCreator topBarBackgroundViewCreator, TopBarController topBarController, String id, Options initialOptions) {
+    public StackController(final Activity activity, ReactViewCreator topBarButtonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewController topBarBackgroundViewController, TopBarController topBarController, String id, Options initialOptions) {
         super(activity, id, initialOptions);
         this.topBarController = topBarController;
         animator = createAnimator();
         this.topBarButtonCreator = topBarButtonCreator;
         this.titleBarReactViewCreator = titleBarReactViewCreator;
-        this.topBarBackgroundViewCreator = topBarBackgroundViewCreator;
+        this.topBarBackgroundViewController = topBarBackgroundViewController;
     }
 
     public void applyOptions(Options options) {
     @NonNull
     @Override
     protected StackLayout createView() {
-        return new StackLayout(getActivity(), topBarButtonCreator, titleBarReactViewCreator, topBarBackgroundViewCreator, topBarController, this::sendOnNavigationButtonPressed, getId());
+        return new StackLayout(getActivity(), topBarButtonCreator, titleBarReactViewCreator, topBarBackgroundViewController, topBarController, this::sendOnNavigationButtonPressed, getId());
     }
 
     @NonNull

lib/android/app/src/main/java/com/reactnativenavigation/viewcontrollers/topbar/TopBarBackgroundViewController.java

+package com.reactnativenavigation.viewcontrollers.topbar;
+
+import android.app.Activity;
+
+import com.reactnativenavigation.parse.Options;
+import com.reactnativenavigation.utils.CompatUtils;
+import com.reactnativenavigation.viewcontrollers.ViewController;
+import com.reactnativenavigation.views.topbar.TopBarBackgroundView;
+import com.reactnativenavigation.views.topbar.TopBarBackgroundViewCreator;
+
+public class TopBarBackgroundViewController extends ViewController<TopBarBackgroundView> {
+
+    private TopBarBackgroundViewCreator viewCreator;
+    private String component;
+
+    public TopBarBackgroundViewController(Activity activity, TopBarBackgroundViewCreator viewCreator) {
+        super(activity, CompatUtils.generateViewId() + "", new Options());
+        this.viewCreator = viewCreator;
+    }
+
+    @Override
+    protected TopBarBackgroundView createView() {
+        return viewCreator.create(getActivity(), getId(), component);
+    }
+
+    @Override
+    public void onViewAppeared() {
+        super.onViewAppeared();
+        view.sendComponentStart();
+    }
+
+    @Override
+    public void onViewDisappear() {
+        view.sendComponentStop();
+        super.onViewDisappear();
+    }
+
+    @Override
+    public void sendOnNavigationButtonPressed(String buttonId) {
+
+    }
+
+    public void setComponent(String component) {
+        this.component = component;
+    }
+}

lib/android/app/src/main/java/com/reactnativenavigation/viewcontrollers/topbar/TopBarController.java

 import com.reactnativenavigation.views.StackLayout;
 import com.reactnativenavigation.views.titlebar.TitleBarReactViewCreator;
 import com.reactnativenavigation.views.topbar.TopBar;
-import com.reactnativenavigation.views.topbar.TopBarBackgroundViewCreator;
 
 
 public class TopBarController {
     private TopBar topBar;
 
-    public View createView(Context context, ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewCreator backgroundViewCreator, TopBarButtonController.OnClickListener topBarButtonClickListener, StackLayout stackLayout) {
+    public View createView(Context context, ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewController topBarBackgroundViewController, TopBarButtonController.OnClickListener topBarButtonClickListener, StackLayout stackLayout) {
         if (topBar == null) {
-            topBar = createTopBar(context, buttonCreator, titleBarReactViewCreator, backgroundViewCreator, topBarButtonClickListener, stackLayout);
+            topBar = createTopBar(context, buttonCreator, titleBarReactViewCreator, topBarBackgroundViewController, topBarButtonClickListener, stackLayout);
             topBar.setId(CompatUtils.generateViewId());
         }
         return topBar;
     }
 
-    protected TopBar createTopBar(Context context, ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewCreator backgroundViewCreator, TopBarButtonController.OnClickListener topBarButtonClickListener, StackLayout stackLayout) {
-        return new TopBar(context, buttonCreator, titleBarReactViewCreator, backgroundViewCreator, topBarButtonClickListener, stackLayout);
+    protected TopBar createTopBar(Context context, ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewController topBarBackgroundViewController, TopBarButtonController.OnClickListener topBarButtonClickListener, StackLayout stackLayout) {
+        return new TopBar(context, buttonCreator, titleBarReactViewCreator, topBarBackgroundViewController, topBarButtonClickListener, stackLayout);
     }
 
     public void clear() {

lib/android/app/src/main/java/com/reactnativenavigation/views/StackLayout.java

 import com.reactnativenavigation.presentation.OptionsPresenter;
 import com.reactnativenavigation.viewcontrollers.ReactViewCreator;
 import com.reactnativenavigation.viewcontrollers.TopBarButtonController;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.titlebar.TitleBarReactViewCreator;
-import com.reactnativenavigation.views.topbar.TopBarBackgroundViewCreator;
 
 import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
 import static android.view.ViewGroup.LayoutParams.WRAP_CONTENT;
     private String stackId;
     private final OptionsPresenter optionsPresenter;
 
-    public StackLayout(Context context, ReactViewCreator topBarButtonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewCreator topBarBackgroundViewCreator, TopBarController topBarController, TopBarButtonController.OnClickListener topBarButtonClickListener, String stackId) {
+    public StackLayout(Context context, ReactViewCreator topBarButtonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewController topBarBackgroundViewController, TopBarController topBarController, TopBarButtonController.OnClickListener topBarButtonClickListener, String stackId) {
         super(context);
         this.stackId = stackId;
-        createLayout(topBarButtonCreator, titleBarReactViewCreator, topBarBackgroundViewCreator, topBarController, topBarButtonClickListener);
+        createLayout(topBarButtonCreator, titleBarReactViewCreator, topBarBackgroundViewController, topBarController, topBarButtonClickListener);
         optionsPresenter = new OptionsPresenter(topBarController.getView());
         setContentDescription("StackLayout");
     }
 
-    private void createLayout(ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewCreator BackgroundViewCreator, TopBarController topBarController, TopBarButtonController.OnClickListener topBarButtonClickListener) {
-        addView(topBarController.createView(getContext(), buttonCreator, titleBarReactViewCreator, BackgroundViewCreator, topBarButtonClickListener, this), MATCH_PARENT, WRAP_CONTENT);
+    private void createLayout(ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewController topBarBackgroundViewController, TopBarController topBarController, TopBarButtonController.OnClickListener topBarButtonClickListener) {
+        addView(topBarController.createView(getContext(), buttonCreator, titleBarReactViewCreator, topBarBackgroundViewController, topBarButtonClickListener, this), MATCH_PARENT, WRAP_CONTENT);
     }
 
     public void applyChildOptions(Options options) {

lib/android/app/src/main/java/com/reactnativenavigation/views/topbar/TopBar.java

 package com.reactnativenavigation.views.topbar;
 
 import android.annotation.SuppressLint;
-import android.app.Activity;
 import android.content.Context;
 import android.graphics.Typeface;
 import android.support.annotation.RestrictTo;
 import com.reactnativenavigation.utils.CompatUtils;
 import com.reactnativenavigation.viewcontrollers.ReactViewCreator;
 import com.reactnativenavigation.viewcontrollers.TopBarButtonController;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.views.StackLayout;
-import com.reactnativenavigation.views.toptabs.TopTabs;
 import com.reactnativenavigation.views.titlebar.TitleBar;
 import com.reactnativenavigation.views.titlebar.TitleBarReactViewCreator;
+import com.reactnativenavigation.views.toptabs.TopTabs;
 
 import java.util.List;
 
     private TopTabs topTabs;
     private RelativeLayout root;
     private StackLayout parentView;
-    private TopBarBackgroundViewCreator topBarBackgroundViewCreator;
-    private TopBarBackgroundView backgroundView;
+    private TopBarBackgroundViewController topBarBackgroundViewController;
 
-    public TopBar(final Context context, ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewCreator topBarBackgroundViewCreator, TopBarButtonController.OnClickListener onClickListener, StackLayout parentView) {
+    public TopBar(final Context context, ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewController topBarBackgroundViewController, TopBarButtonController.OnClickListener onClickListener, StackLayout parentView) {
         super(context);
         collapsingBehavior = new TopBarCollapseBehavior(this);
-        this.topBarBackgroundViewCreator = topBarBackgroundViewCreator;
+        this.topBarBackgroundViewController = topBarBackgroundViewController;
         this.parentView = parentView;
         topTabs = new TopTabs(getContext());
         animator = new TopBarAnimator(this, parentView.getStackId());
 
     public void setBackgroundComponent(Text component) {
         if (component.hasValue()) {
-            backgroundView = topBarBackgroundViewCreator.create((Activity) getContext(), String.valueOf(CompatUtils.generateViewId()), component.get());
+            topBarBackgroundViewController.setComponent(component.get());
             RelativeLayout.LayoutParams lp = new RelativeLayout.LayoutParams(MATCH_PARENT, getHeight());
-            root.addView(backgroundView, 0, lp);
+            root.addView(topBarBackgroundViewController.getView(), 0, lp);
         }
     }
 
         titleBar.setRightButtons(rightButtons);
     }
 
-    @RestrictTo(RestrictTo.Scope.TESTS)
-    public TextView getTitleTextView() {
-        return titleBar.getTitleTextView();
-    }
-
     public void setBackgroundColor(Color color) {
         titleBar.setBackgroundColor(color);
     }
     }
 
     public void clear() {
-        if (backgroundView != null) {
-            backgroundView.destroy();
-            root.removeView(backgroundView);
-            backgroundView = null;
-        }
+        topBarBackgroundViewController.destroy();
         titleBar.clear();
     }
 
     public void setAnimator(TopBarAnimator animator) {
         this.animator = animator;
     }
+
+    @RestrictTo(RestrictTo.Scope.TESTS)
+    public TextView getTitleTextView() {
+        return titleBar.getTitleTextView();
+    }
 }

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/BottomTabsControllerTest.java

 import com.reactnativenavigation.utils.ImageLoader;
 import com.reactnativenavigation.utils.OptionHelper;
 import com.reactnativenavigation.viewcontrollers.bottomtabs.BottomTabsController;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.BottomTabs;
 import com.reactnativenavigation.views.ReactComponent;
     }
 
     private StackController createStack(String id) {
-        return new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), id, tabOptions);
+        return new StackController(activity,
+                new TopBarButtonCreatorMock(),
+                new TitleBarReactViewCreatorMock(),
+                new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()),
+                new TopBarController(),
+                id,
+                tabOptions
+        );
     }
 }

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/ComponentViewControllerTest.java

 import com.reactnativenavigation.mocks.TopBarBackgroundViewCreatorMock;
 import com.reactnativenavigation.mocks.TopBarButtonCreatorMock;
 import com.reactnativenavigation.parse.Options;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.StackLayout;
 
         super.beforeEach();
         Activity activity = newActivity();
         view = spy(new TestComponentLayout(activity, new TestReactView(activity)));
-        ParentController<StackLayout> parentController = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "stack", new Options());
+        ParentController<StackLayout> parentController = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), "stack", new Options());
         uut = new ComponentViewController(activity, "componentId1", "componentName", (activity1, componentId, componentName) -> view, new Options());
         uut.setParentController(parentController);
         parentController.ensureViewIsCreated();

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/FloatingActionButtonTest.java

 import com.reactnativenavigation.parse.FabOptions;
 import com.reactnativenavigation.parse.Options;
 import com.reactnativenavigation.parse.params.Text;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.Fab;
 import com.reactnativenavigation.views.FabMenu;
     public void beforeEach() {
         super.beforeEach();
         activity = newActivity();
-        stackController = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "stackController", new Options());
+        stackController = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), "stackController", new Options());
         Options options = getOptionsWithFab();
         childFab = new SimpleViewController(activity, "child1", options);
         childNoFab = new SimpleViewController(activity, "child2", new Options());

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/NavigatorTest.java

 import com.reactnativenavigation.utils.ImageLoader;
 import com.reactnativenavigation.utils.OptionHelper;
 import com.reactnativenavigation.viewcontrollers.bottomtabs.BottomTabsController;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 
 import org.junit.Test;
 
     @NonNull
     private StackController newStack() {
-        return new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(),
+        return new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(),
                 "stack" + CompatUtils.generateViewId(), tabOptions);
     }
 

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/OptionsApplyingTest.java

 import com.reactnativenavigation.parse.params.Fraction;
 import com.reactnativenavigation.parse.params.Text;
 import com.reactnativenavigation.utils.ViewUtils;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.topbar.TopBarBackgroundView;
 
                 (activity1, componentId, componentName) -> view,
                 initialNavigationOptions
         );
-        stackController = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "stack", new Options());
+        stackController = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), "stack", new Options());
         stackController.ensureViewIsCreated();
         uut.setParentController(stackController);
     }
     @Test
     public void initialOptionsAppliedOnAppear() {
         uut.options.topBarOptions.title.text = new Text("the title");
-        StackController stackController = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "stackId", new Options());
+        StackController stackController = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), "stackId", new Options());
         stackController.animatePush(uut, new MockPromise() {});
         assertThat(stackController.getTopBar().getTitle()).isEmpty();
 

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/ParentControllerTest.java

 import com.reactnativenavigation.mocks.TopBarButtonCreatorMock;
 import com.reactnativenavigation.parse.Options;
 import com.reactnativenavigation.parse.params.Text;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.ReactComponent;
 
     }
 
     private StackController createStack() {
-        return new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "stack", new Options());
+        return new StackController(
+                activity,
+                new TopBarButtonCreatorMock(),
+                new TitleBarReactViewCreatorMock(),
+                new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()),
+                new TopBarController(),
+                "stack",
+                new Options()
+        );
     }
 }

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/StackControllerTest.java

 import com.reactnativenavigation.parse.params.Bool;
 import com.reactnativenavigation.parse.params.Text;
 import com.reactnativenavigation.utils.ViewHelper;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.Component;
 import com.reactnativenavigation.views.ReactComponent;
     @Test
     public void pop_layoutHandlesChildWillDisappear() {
         final StackLayout[] stackLayout = new StackLayout[1];
-        uut = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "uut", new Options()) {
+        uut = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), "uut", new Options()) {
             @NonNull
             @Override
             protected StackLayout createView() {
     @Test
     public void mergeChildOptions_updatesViewWithNewOptions() {
         final StackLayout[] stackLayout = new StackLayout[1];
-        StackController uut = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "stack", new Options()) {
+        StackController uut = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), "stack", new Options()) {
             @NonNull
             @Override
             protected StackLayout createView() {
     @Test
     public void mergeChildOptions_updatesParentControllerWithNewOptions() {
         final StackLayout[] stackLayout = new StackLayout[1];
-        StackController uut = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "stack", new Options()) {
+        StackController uut = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), "stack", new Options()) {
             @NonNull
             @Override
             protected StackLayout createView() {
     private StackController createStackController(String id) {
         topBarController = spy(new TopBarController());
         return new StackController(activity,
-                new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(),
+                new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()),
                 topBarController, id, new Options()) {
             @Override
             NavigationAnimator createAnimator() {

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/TopBarButtonControllerTest.java

 import com.reactnativenavigation.parse.Options;
 import com.reactnativenavigation.parse.params.Button;
 import com.reactnativenavigation.parse.params.Text;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 
 import org.junit.Ignore;
 
         TopBarButtonCreatorMock buttonCreatorMock = new TopBarButtonCreatorMock();
         uut = spy(new TopBarButtonController(activity, button, buttonCreatorMock, (buttonId) -> {}));
-        stackController = spy(new StackController(activity, buttonCreatorMock, new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "stack", new Options()));
+        stackController = spy(new StackController(activity, buttonCreatorMock, new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), "stack", new Options()));
 
     }
 

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/TopBarControllerTest.java

 package com.reactnativenavigation.viewcontrollers;
 
+import android.app.Activity;
 import android.content.Context;
 import android.support.annotation.NonNull;
 
 import com.reactnativenavigation.mocks.TitleBarReactViewCreatorMock;
 import com.reactnativenavigation.mocks.TopBarBackgroundViewCreatorMock;
 import com.reactnativenavigation.mocks.TopBarButtonCreatorMock;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.StackLayout;
 import com.reactnativenavigation.views.titlebar.TitleBar;
 import com.reactnativenavigation.views.titlebar.TitleBarReactViewCreator;
 import com.reactnativenavigation.views.topbar.TopBar;
-import com.reactnativenavigation.views.topbar.TopBarBackgroundViewCreator;
 
 import org.junit.Test;
 import org.mockito.Mockito;
         uut = new TopBarController() {
             @NonNull
             @Override
-            protected TopBar createTopBar(Context context, ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewCreator backgroundViewCreator, TopBarButtonController.OnClickListener topBarButtonClickListener, StackLayout stackLayout) {
-                return new TopBar(context, buttonCreator, titleBarReactViewCreator, backgroundViewCreator, topBarButtonClickListener, stackLayout) {
+            protected TopBar createTopBar(Context context, ReactViewCreator buttonCreator, TitleBarReactViewCreator titleBarReactViewCreator, TopBarBackgroundViewController topBarBackgroundViewController, TopBarButtonController.OnClickListener topBarButtonClickListener, StackLayout stackLayout) {
+                return new TopBar(context, buttonCreator, titleBarReactViewCreator, topBarBackgroundViewController, topBarButtonClickListener, stackLayout) {
                     @Override
                     protected TitleBar createTitleBar(Context context, ReactViewCreator buttonCreator, TitleBarReactViewCreator reactViewCreator, TopBarButtonController.OnClickListener onClickListener) {
                         titleBar[0] = spy(super.createTitleBar(context, buttonCreator, reactViewCreator, onClickListener));
                 };
             }
         };
-        uut.createView(newActivity(), new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), buttonId -> { }, Mockito.mock(StackLayout.class));
+        Activity activity = newActivity();
+        uut.createView(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), buttonId -> { }, Mockito.mock(StackLayout.class));
         uut.clear();
         verify(titleBar[0], times(1)).clear();
     }

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/TopTabsViewControllerTest.java

 import com.reactnativenavigation.parse.Options;
 import com.reactnativenavigation.parse.params.Text;
 import com.reactnativenavigation.utils.ViewHelper;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.viewcontrollers.toptabs.TopTabsAdapter;
 import com.reactnativenavigation.viewcontrollers.toptabs.TopTabsController;
 
     @NonNull
     private StackController createStackController(String id) {
-        return new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), id, new Options());
+        return new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), id, new Options());
     }
 
     @NonNull

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/ViewControllerTest.java

 import com.reactnativenavigation.mocks.TopBarBackgroundViewCreatorMock;
 import com.reactnativenavigation.mocks.TopBarButtonCreatorMock;
 import com.reactnativenavigation.parse.Options;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 
 import org.assertj.android.api.Assertions;
     @Test
     public void holdsAReferenceToStackControllerOrNull() {
         assertThat(uut.getParentController()).isNull();
-        StackController nav = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), "stack", new Options());
+        StackController nav = new StackController(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()), new TopBarController(), "stack", new Options());
         nav.animatePush(uut, new MockPromise());
         assertThat(uut.getParentController()).isEqualTo(nav);
     }

lib/android/app/src/test/java/com/reactnativenavigation/views/TopBarBackgroundComponentTest.java

 import com.reactnativenavigation.parse.params.Text;
 import com.reactnativenavigation.utils.ViewUtils;
 import com.reactnativenavigation.viewcontrollers.TopBarButtonController;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.topbar.TopBar;
 import com.reactnativenavigation.views.topbar.TopBarBackgroundView;
 
 public class TopBarBackgroundComponentTest extends BaseTest {
     private TopBar uut;
-    private TopBarBackgroundView backgroundView;
+    private TopBarBackgroundViewController topBarBackgroundViewController;
 
     @SuppressWarnings("Convert2Lambda")
     @Override
                 Log.i("TopBarTest", "onPress: " + buttonId);
             }
         });
-        TopBarBackgroundViewCreatorMock backgroundViewCreator = new TopBarBackgroundViewCreatorMock() {
-            @Override
-            public TopBarBackgroundView create(Activity activity, String componentId, String componentName) {
-                backgroundView = spy(super.create(activity, componentId, componentName));
-                return backgroundView;
-            }
-        };
-        StackLayout parent = new StackLayout(newActivity(), new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), backgroundViewCreator, new TopBarController(), onClickListener, null);
-        uut = new TopBar(newActivity(), new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), backgroundViewCreator, onClickListener, parent);
+        Activity activity = newActivity();
+        topBarBackgroundViewController = spy(new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock()));
+        StackLayout parent = new StackLayout(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), topBarBackgroundViewController, new TopBarController(), onClickListener, null);
+        uut = new TopBar(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), topBarBackgroundViewController, onClickListener, parent);
         parent.addView(uut);
     }
 
     public void clear_componentIsDestroyed() {
         uut.setBackgroundComponent(new Text("someComponent"));
         uut.clear();
-        verify(backgroundView, times(1)).destroy();
-        assertThat(backgroundView.getParent()).isNull();
+        verify(topBarBackgroundViewController, times(1)).destroy();
     }
 }

lib/android/app/src/test/java/com/reactnativenavigation/views/TopBarTest.java

 package com.reactnativenavigation.views;
 
+import android.app.Activity;
 import android.util.Log;
 import android.view.MenuItem;
 
 import com.reactnativenavigation.parse.params.Text;
 import com.reactnativenavigation.utils.TitleBarHelper;
 import com.reactnativenavigation.viewcontrollers.TopBarButtonController;
+import com.reactnativenavigation.viewcontrollers.topbar.TopBarBackgroundViewController;
 import com.reactnativenavigation.viewcontrollers.topbar.TopBarController;
 import com.reactnativenavigation.views.topbar.TopBar;
 
                 Log.i("TopBarTest", "onPress: " + buttonId);
             }
         });
-        StackLayout parent = new StackLayout(newActivity(), new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), new TopBarController(), this.onClickListener, null);
-        uut = new TopBar(newActivity(), new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), new TopBarBackgroundViewCreatorMock(), this.onClickListener, parent);
+        Activity activity = newActivity();
+        TopBarBackgroundViewController topBarBackgroundViewController = new TopBarBackgroundViewController(activity, new TopBarBackgroundViewCreatorMock());
+        StackLayout parent = new StackLayout(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), topBarBackgroundViewController, new TopBarController(), this.onClickListener, null);
+        uut = new TopBar(activity, new TopBarButtonCreatorMock(), new TitleBarReactViewCreatorMock(), topBarBackgroundViewController, this.onClickListener, parent);
         animator = spy(new TopBarAnimator(uut));
         uut.setAnimator(animator);
         leftButton = createLeftButton();

playground/src/screens/TopBarBackground.js

     this.dots = new Array(55).fill('').map((ignored, i) => <View key={'dot' + i} style={styles.dot}/>);
   }
 
+  componentDidAppear() {
+    console.log('RNN', 'TBB.componentDidAppear');
+  }
+
+  componentDidDisappear() {
+    console.log('RNN', `TBB.componentDidDisappear`);
+  }
+
+  componentDidMount() {
+    console.log('RNN', `TBB.componentDidMount`);
+  }
+
+  componentWillUnmount() {
+    console.log('RNN', `TBB.componentWillUnmount`);
+  }
+
   render() {
     return (
       <View style={styles.container}>