Cast existing variable (#213)

RecyclerView.md

@@ -50,8 +50,7 @@ or for the attributes for the children of the `FlexboxLayoutManager` you can do
 mImageView.setImageDrawable(drawable);
 ViewGroup.LayoutParams lp = mImageView.getLayoutParams();
 if (lp instanceof FlexboxLayoutManager.LayoutParams) {
-    FlexboxLayoutManager.LayoutParams flexboxLp = (FlexboxLayoutManager.LayoutParams)
-            mImageView.getLayoutParams();
+    FlexboxLayoutManager.LayoutParams flexboxLp = (FlexboxLayoutManager.LayoutParams) lp;
     flexboxLp.setFlexGrow(1.0f);
     flexboxLp.setAlignSelf(AlignSelf.FLEX_END);
 }

demo-cat-gallery/src/main/java/com/google/android/flexbox/apps/catgallery/CatViewHolder.java

@@ -40,8 +40,7 @@ class CatViewHolder extends RecyclerView.ViewHolder {
         mImageView.setImageDrawable(drawable);
         ViewGroup.LayoutParams lp = mImageView.getLayoutParams();
         if (lp instanceof FlexboxLayoutManager.LayoutParams) {
-            FlexboxLayoutManager.LayoutParams flexboxLp = (FlexboxLayoutManager.LayoutParams)
-                    mImageView.getLayoutParams();
+            FlexboxLayoutManager.LayoutParams flexboxLp = (FlexboxLayoutManager.LayoutParams) lp;
             flexboxLp.setFlexGrow(1.0f);
         }
     }