Pass header height as style param from Js

consider changing this later on

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

@@ -7,6 +7,7 @@ import com.reactnativenavigation.views.collapsingToolbar.behaviours.CollapseBeha
 public class CollapsingTopBarParams {
     public @Nullable String imageUri;
     public @Nullable String reactViewId;
+    public int reactViewHeight;
     public StyleParams.Color scrimColor;
     public CollapseBehaviour collapseBehaviour;
 

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

@@ -28,6 +28,7 @@ class CollapsingTopBarParamsParser extends Parser {
         CollapsingTopBarParams result = new CollapsingTopBarParams();
         result.imageUri = params.getString("collapsingToolBarImage", null);
         result.reactViewId = params.getString("collapsingToolBarComponent", null);
+        result.reactViewHeight = params.getInt("collapsingToolBarComponentHeight");
         result.scrimColor = getColor(params, "collapsingToolBarCollapsedColor", new StyleParams.Color(Color.WHITE));
         result.collapseBehaviour = getCollapseBehaviour();
         return result;

android/app/src/main/java/com/reactnativenavigation/views/collapsingToolbar/CollapsingTopBar.java

@@ -14,12 +14,13 @@ import com.reactnativenavigation.views.TopBar;
 
 public class CollapsingTopBar extends TopBar implements CollapsingView {
     private CollapsingTopBarBackground collapsingTopBarBackground;
-    private CollapsingTopBarReactView headerView;
+    private CollapsingTopBarReactView header;
     private ScrollListener scrollListener;
     private float finalCollapsedTranslation;
     private CollapsingTopBarParams params;
     private final ViewCollapser viewCollapser;
     private final int topBarHeight;
+    private String title;
 
     public CollapsingTopBar(Context context, final CollapsingTopBarParams params) {
         super(context);
@@ -48,6 +49,15 @@ public class CollapsingTopBar extends TopBar implements CollapsingView {
         this.scrollListener = scrollListener;
     }
 
+    @Override
+    public void setTitle(String title) {
+        if (params.hasReactView()) {
+            this.title = title;
+        } else {
+            super.setTitle(title);
+        }
+    }
+
     private void createBackgroundImage(CollapsingTopBarParams params) {
         if (params.hasBackgroundImage()) {
             collapsingTopBarBackground = new CollapsingTopBarBackground(getContext(), params);
@@ -58,11 +68,11 @@ public class CollapsingTopBar extends TopBar implements CollapsingView {
 
     private void createReactView(CollapsingTopBarParams params) {
         if (params.hasReactView()) {
-            headerView = new CollapsingTopBarReactView(getContext(),
+            header = new CollapsingTopBarReactView(getContext(),
                     params.reactViewId,
                     new NavigationParams(Bundle.EMPTY));
-            LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, (int) ViewUtils.convertDpToPixel(400));
-            titleBarAndContextualMenuContainer.addView(headerView, lp);
+            LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, (int) ViewUtils.convertDpToPixel(params.reactViewHeight));
+            titleBarAndContextualMenuContainer.addView(header, lp);
         }
     }
 

src/deprecated/platformSpecificDeprecated.android.js

@@ -127,6 +127,7 @@ function convertStyleParams(originalStyleObject) {
     topBarElevationShadowEnabled: originalStyleObject.topBarElevationShadowEnabled,
     collapsingToolBarImage: originalStyleObject.collapsingToolBarImage,
     collapsingToolBarComponent: originalStyleObject.collapsingToolBarComponent,
+    collapsingToolBarComponentHeight: originalStyleObject.collapsingToolBarComponentHeight,
     collapsingToolBarCollapsedColor: processColor(originalStyleObject.collapsingToolBarCollapsedColor),
     titleBarHidden: originalStyleObject.navBarHidden,
     titleBarHideOnScroll: originalStyleObject.navBarHideOnScroll,