SectionList misses scrollTo* methods

I’m planning to switch from ListView to SectionList, but find that I can’t perform any scrollTo* methods, they are defined in VirtualizedList but not in VirtualizedSectionList. At least scrollToOffset should be implemented.

I’d like to send a PR, but I’m afraid to break the docs, and I don’t know whether should we implement scrollToIndex and scrollToItem as they are different from FlatList

Perhaps a new method scrollToSection could be added too, it’s a common use case in a contact list

@sahrens

[steobrien]

[Update 2018-04-13: this workaround apparently works on iOS, but not Android]

A workaround in the absence of these methods is to work back to the VirtualizedList and directly access them there. This requires using underscored, undocumented methods and so should only be used in a pinch.

For example:

//…

componentDidMount() {
  this.refs.list._wrapperListRef._listRef.scrollToOffset({offset: 0})
}

//…

<SectionList ref="list" {…otherProps} />

//…

[RUIFERNANDE5]

@sahrens Version 0.45 is already up and scrollToLocation is documented, but I can’t really find an example. Would be awesome if you could give me a hint how can I get the index in renderSectionHeader and scroll to that section index?

Thanks in advance EDIT:

I was able to use it:

scrollView.scrollToLocation({
         animated: true,
         sectionIndex: 3,
         itemIndex: 0,
         viewOffset: 28 // height of section header
})