Pass collapsingToolBarComponent param from Java

android/app/src/main/java/com/reactnativenavigation/params/CollapsingTopBarParams.java

 
 public class CollapsingTopBarParams {
     public @Nullable String imageUri;
+    public @Nullable String reactViewId;
     public StyleParams.Color scrimColor;
     public CollapseBehaviour collapseBehaviour;
 
     public boolean hasBackgroundImage() {
         return imageUri != null;
     }
+
+    public boolean hasReactView() {
+        return reactViewId != null;
+    }
 }

android/app/src/main/java/com/reactnativenavigation/params/parsers/CollapsingTopBarParamsParser.java

     }
 
     public CollapsingTopBarParams parse() {
-        if (!hasBackgroundImage() && !titleBarHideOnScroll) {
+        if (!validateParams()) {
             return null;
         }
-
         CollapsingTopBarParams result = new CollapsingTopBarParams();
-        if (hasBackgroundImage()) {
-            result.imageUri = params.getString("collapsingToolBarImage");
-        }
+        result.imageUri = params.getString("collapsingToolBarImage", null);
+        result.reactViewId = params.getString("collapsingToolBarComponent", null);
         result.scrimColor = getColor(params, "collapsingToolBarCollapsedColor", new StyleParams.Color(Color.WHITE));
         result.collapseBehaviour = getCollapseBehaviour();
         return result;
     }
 
+    private boolean validateParams() {
+        return titleBarHideOnScroll || hasImageOrReactView();
+    }
+
+    private boolean hasImageOrReactView() {
+        return hasBackgroundImage() || hasReactView();
+    }
+
     private CollapseBehaviour getCollapseBehaviour() {
         if (hasBackgroundImage()) {
             return new CollapseTopBarBehaviour();
     private boolean hasBackgroundImage() {
         return params.containsKey("collapsingToolBarImage");
     }
+
+    private boolean hasReactView() {
+        return params.containsKey("collapsingToolBarComponent");
+    }
 }

src/deprecated/platformSpecificDeprecated.android.js

     topBarTranslucent: originalStyleObject.navBarTranslucent,
     topBarElevationShadowEnabled: originalStyleObject.topBarElevationShadowEnabled,
     collapsingToolBarImage: originalStyleObject.collapsingToolBarImage,
+    collapsingToolBarComponent: originalStyleObject.collapsingToolBarComponent,
     collapsingToolBarCollapsedColor: processColor(originalStyleObject.collapsingToolBarCollapsedColor),
     titleBarHidden: originalStyleObject.navBarHidden,
     titleBarHideOnScroll: originalStyleObject.navBarHideOnScroll,