Apologize for the lack of updates as I do not have the bandwidth to work on this. But please check out this project https://github.com/flutterchina/azlistview if you need an A-Z list view that have more updates.
Alphabet List Scroll View
A customizable listview with A-Z side scrollbar to fast jump to the item of the selected character.
Quick scroll through list via dragging through alphabets.
API
name
type
default
description
strList
List
-
List of Strings
itemBuilder
itemBuilder(context, index)
-
itemBuilder similar to itemBuilder in ListView.builder
highlightTextStyle
bool
false
highlight the focused pin box.
normalTextStyle
Color
Colors.black
Set color of the focused pin box.
showPreview
bool
true
show preview on screen
keyboardUsage
bool
true
The alphabet list will be wrapped in scrollview.
indexedHeight
double Function(int)
query the height of widget with index
headerWidgetList
List
headers
AlphabetScrollListHeader
name
type
default
description
widgetList
List
[]
icon
Icon
Icon shows in the side alphabet list and the preview