scrollToBottom () {
  let listView = this.$refs.messagesscroll

  setTimeout(() => {
    if (listView &&
        listView.nativeView &&
        listView.nativeView.ios) {
        listView.nativeView.ios.scrollToRowAtIndexPathAtScrollPositionAnimated(NSIndexPath.indexPathForItemInSection(listView.nativeView.items.length - 1, 0),
        UITableViewScrollPosition.Bottom,
        true)
    }
  }, 10)
},