A flutter library provide a simple roulette widget which usually used for lottery

Overview

This is a library provide a simple roulette widget which usually used for lottery.

Features

  • Quickly build roulettes

  • Build roulettes with different parts depends on the weight

  • Easily control the roll animation and settle position

  • There are two types of roulette provided by this package:

    • Uniform roulette without text: Uniform with no text

    • Weight roulette with text: Weight based with text

Getting started

Usage

Build a Roulette widget

First, you need to create a RouletteController instance.

RouletteController(
  group: RouletteGroup([
    RouletteUnit.noText(color: Colors.red),
    RouletteUnit.noText(color: Colors.green),
    // ...other units
  ]),
  vsync: this // provide a TickerProvider here
);

Once you have a controller, you could add a Roulette widget into your widget tree:

@override
Widget build(BuildContext context) {
  return Roulette(
    controller: controller, // provide your controller here
    style: RouletteStyle(
      // config the roulette's appearance here
    ),
  );
}

Run the Roulette

Use roll method to run the roulette where you need to.

ElevatedButton(
  onPressed: () => controller.rollTo(2), // provide the index you want to settle
  child: const Text('Roll!'),
);

You could await the rollTo method's finish and then make some other actions.

The rollTo method provides many options for you to control the rolling behavior. Please check the document for more information.

For detailed usage sample, please check the example.

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Comments
  • [fix] draw full-width chars problem

    [fix] draw full-width chars problem

    I found the following problem. スクリーンショット 2022-05-30 23 23 52

    Half-width characters (such as "123") are painted correctly, but full-width ones(such as "123", "あいう") are painted incorrectly(not centering).

    I have solved this problem with this diff. Like this: スクリーンショット 2022-05-30 23 23 17

    If you need it, please refer to it.

    opened by SeeLog 4
  • Separate tests to multiple files to run on different os

    Separate tests to multiple files to run on different os

    Golden tests must run on the os which generates the golden files. The golden files was generated on windows 11 which is not supported by Github CI. So I re-generated this files on macOS and updated the ci configuration.

    opened by f-qiaolei 0
  • Asking for additional feature development: combine gesturedetector in roulette_paint.dart file

    Asking for additional feature development: combine gesturedetector in roulette_paint.dart file

    Hello developers, thanks for your roulette package.

    Looking for some way to include either text field or gesture detect widget(or showdialog) in each section of the roulette when clicked.

    Since I am very new to flutter and dart, have an idea that some how need to manipulate _drawSections function in roulette_paint.dart file.

    I spent a week of research in create a widget in function, but got no feasible solution.

    Asking for your help sincerely.

    Hope this open project(package) still in progress :)

    opened by hogyun3709 3
Releases(0.1.2)
  • 0.1.2(Jun 25, 2022)

    What's Changed

    • Flutter SDK version update by @do9core in https://github.com/do9core/roulette/pull/12
    • Fix API document & Update README, Changelog and the example by @do9core in https://github.com/do9core/roulette/pull/13

    Full Changelog: https://github.com/do9core/roulette/compare/0.1.1...0.1.2

    Source code(tar.gz)
    Source code(zip)
  • 0.1.1(May 31, 2022)

    What's Changed

    • Introduce fvm support by @do9core in https://github.com/do9core/roulette/pull/8
    • [fix] draw full-width chars problem by @SeeLog in https://github.com/do9core/roulette/pull/10

    New Contributors

    • @SeeLog made their first contribution in https://github.com/do9core/roulette/pull/10

    Full Changelog: https://github.com/do9core/roulette/compare/0.1.0...0.1.1

    Source code(tar.gz)
    Source code(zip)
  • 0.1.0+1(Jan 15, 2022)

  • 0.1.0(Jan 11, 2022)

    First release on Github 🎉 Please check the change log for more information.

    What's Changed

    • Separate tests to multiple files to run on different os by @f-qiaolei in https://github.com/do9core/roulette/pull/4
    • Add CI check and test action by @do9core in https://github.com/do9core/roulette/pull/2
    • Remove the unused constructor parameter on RouletteController by @do9core in https://github.com/do9core/roulette/pull/1
    • Create publish ci task by @do9core in https://github.com/do9core/roulette/pull/6
    • Update publish.yml by @do9core in https://github.com/do9core/roulette/pull/7

    Full Changelog: https://github.com/do9core/roulette/commits/0.1.0

    Source code(tar.gz)
    Source code(zip)
Owner
Android Developer.
null
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