[MM-17016] Ensure Flatlist is mounted prior to calling scrollToIndex (#2977)

* Ensure Flatlist is mounted prior to calling scrollToIndex * Address review comment
2019-07-16 06:07:59 -07:00 · 2019-07-16 06:07:59 -07:00 · b98812f84f
commit b98812f84f
parent 71f96fc1cf
1 changed files with 2 additions and 1 deletions
--- a/app/components/post_list/post_list.js
+++ b/app/components/post_list/post_list.js
@ -292,7 +292,8 @@ export default class PostList extends PureComponent {
            width > 0 &&
            height > 0 &&
            this.props.initialIndex > 0 &&
-            !this.hasDoneInitialScroll
+            !this.hasDoneInitialScroll &&
+            this.flatListRef?.current
        ) {
            requestAnimationFrame(() => {
                this.flatListRef.current.scrollToIndex({