CollapsingTopTabs params are nullable

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

 
     public CollapsingTopBarParams parse() {
         if (!validateParams()) {
-            return new CollapsingTopBarParams();
+            return null;
         }
         CollapsingTopBarParams result = new CollapsingTopBarParams();
         result.imageUri = params.getString("collapsingToolBarImage", null);

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

     }
 
     public boolean didInterceptTouchEvent(MotionEvent ev) {
-            return listener.onTouch(ev);
+        return listener.onTouch(ev);
     }
 
     @Override