radial_slider 0.0.2

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  • Changelog
  • Example
  • Installing
  • 54

radial_slider #

A radial slider widget.

Getting Started #

For help getting started with Flutter, view our online documentation.

For help on editing package code, view the documentation.

[0.0.1] - TODO: Add release date.

  • TODO: Describe initial release.

example/main.dart

import 'dart:math';
import 'package:flutter/material.dart';
import 'package:radial_slider/radial_slider.dart';

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Flutter Demo',
      theme: new ThemeData(
        primarySwatch: Colors.blue,
        accentColor: Colors.red,
        brightness: Brightness.light,
      ),
      home: Scaffold(
          appBar: AppBar(
            title: Text('Flutter Demo')
          ),
          body: AppBody(),
      )
    );
  }
}

const double START_ANGLE = - pi / 2;

class AppBody extends StatefulWidget {
  @override
  _AppBodyState createState() => _AppBodyState();
}

class _AppBodyState extends State<AppBody> {
  double angle = START_ANGLE;

  @override
  Widget build(BuildContext context) {
    return Column(
      children: <Widget>[
        Container(
          height: 60.0,
          child: Center(child: Text('Angle: ${angle.toStringAsFixed(2)}'))
        ),
        Expanded(
          flex: 1,
          child: RadialSlider(
            color: Colors.yellow,
            backgroundColor: Colors.blue,
            backgroundGradient: null,
            radius: 120.0,
            initialAngle: angle,
            maxAngle: pi * 2 - START_ANGLE,
            onChange: (a) {
              setState(() {
                angle = a;
              });
            },
            onChanging: (a) {
              setState(() {
                angle = a;
              });
            },
          ),
        ),
        SizedBox(
          height: 30.0,
        )
      ],
    );
  }
}

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:


dependencies:
  radial_slider: ^0.0.2

2. Install it

You can install packages from the command line:

with Flutter:


$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:


import 'package:radial_slider/radial_slider.dart';
  
Popularity:
Describes how popular the package is relative to other packages. [more]
30
Health:
Code health derived from static analysis. [more]
100
Maintenance:
Reflects how tidy and up-to-date the package is. [more]
46
Overall:
Weighted score of the above. [more]
54
Learn more about scoring.

We analyzed this package on Dec 13, 2019, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.6.1
  • pana: 0.13.1+4
  • Flutter: 1.12.13+hotfix.2

Health suggestions

Fix lib/src/radial_slider.dart. (-0.50 points)

Analysis of lib/src/radial_slider.dart reported 1 hint:

line 4 col 7: This class (or a class which this class inherits from) is marked as '@immutable', but one or more of its instance fields are not final: RadialSlider.radius, RadialSlider.minAngle, RadialSlider.maxAngle, RadialSlider.initialAngle, RadialSlider.background, RadialSlider.color, RadialSlider.backgroundColor, RadialSlider.backgroundGradient, RadialSlider.onChange, RadialSlider.onChanging

Maintenance suggestions

Package is getting outdated. (-24.11 points)

The package was last published 64 weeks ago.

The package description is too short. (-20 points)

Add more detail to the description field of pubspec.yaml. Use 60 to 180 characters to describe the package, what it does, and its target use case.

Package is pre-v0.1 release. (-10 points)

While nothing is inherently wrong with versions of 0.0.*, it might mean that the author is still experimenting with the general direction of the API.

Dependencies

Package Constraint Resolved Available
Direct dependencies
Dart SDK >=1.19.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.11 1.14.12
meta 1.1.8
sky_engine 0.0.99
typed_data 1.1.6
vector_math 2.0.8
Dev dependencies
flutter_test