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Description:

roller list

roller_list package #
This widget is a list of values distributed in a circle. The main rules of the list are: a user could scroll it in one direction endlessly, list values are limited and repeated in the same order over and over again.
Possible usage scheme:
-time selection
-piano notes selection
-choice of any limited number of items, where it is not important what should go first and what should go last.
Example #
You can check Flutter for web build here
Or see how it looks like on iphone:

How to use #
In the dependencies: section of your pubspec.yaml, add the following line:
roller_list: <latest version>
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Then import this class:
import 'package:roller_list/roller_list.dart';
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And add your list like this (with only programmatical scroll):
RollerList(
items: slots,
enabled: false,
key: leftRoller,
)
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Or like this (with enabled scroll):
RollerList(
items: months,
onSelectedIndexChanged: _changeMonths,
initialIndex: 1,
)
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where months is a list of widgets:
static const MONTHS = {
"January": 31,
"February": 29,
"March": 31,
"April": 30,
"May": 31,
"June": 30,
"July": 31,
"August": 31,
"September": 30,
"October": 31,
"November": 30,
"December": 31
};

final List<Widget> months = MONTHS.keys
.map((month) => Padding(
padding: EdgeInsets.all(12.0),
child: Text(
month,
textScaleFactor: 1.3,
textAlign: TextAlign.center,
),
))
.toList();
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and _changeMonths will show the selection result somewhere in the widget tree:
void _changeMonths(int value) {
setState(() {
selectedMonth = MONTHS.keys.toList()[value];
});
}
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