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GitHub 代码仓PramodJoshi/toggle_switch

切换开关

一个简单的切换开关小部件，用于 Flutter。

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切换开关 项目封面
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119
复刻
68
最近推送（UTC）
2024年8月3日
项目状态
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原始 README

以下为英文项目原文快照，最新内容请访问 GitHub。

Toggle Switch

A simple toggle switch widget. It can be fully customized with desired icons, width, colors, text, corner radius, animation etc. It also maintains selection state.

Getting Started

In the pubspec.yaml of your flutter project, add the following dependency:

dependencies:
  ...
  toggle_switch: ^2.3.0

Import it:

import 'package:toggle_switch/toggle_switch.dart';

Usage Examples

Basic toggle switch
// Here, default theme colors are used for activeBgColor, activeFgColor, inactiveBgColor and inactiveFgColor
ToggleSwitch(
  initialLabelIndex: 0,
  totalSwitches: 3,
  labels: ['America', 'Canada', 'Mexico'],
  onToggle: (index) {
    print('switched to: $index');
  },
),

Basic toggle switch

Basic toggle switch with custom height and font size
ToggleSwitch(
  minWidth: 90.0,
  minHeight: 90.0,
  fontSize: 16.0,
  initialLabelIndex: 1,
  activeBgColor: [Colors.green],
  activeFgColor: Colors.white,
  inactiveBgColor: Colors.grey,
  inactiveFgColor: Colors.grey[900],
  totalSwitches: 3,
  labels: ['Tall', 'Grande', 'Venti'],
  onToggle: (index) {
    print('switched to: $index');
  },
),

Basic toggle switch with custom height and font size

With text or icon and custom widths
ToggleSwitch(
  customWidths: [90.0, 50.0],
  cornerRadius: 20.0,
  activeBgColors: [[Colors.cyan], [Colors.redAccent]],
  activeFgColor: Colors.white,
  inactiveBgColor: Colors.grey,
  inactiveFgColor: Colors.white,
  totalSwitches: 2,
  labels: ['YES', ''],
  icons: [null, FontAwesomeIcons.times],
  onToggle: (index) {
    print('switched to: $index');
  },
),

With text or icon and custom widths

With icons, text and different active background colors
ToggleSwitch(
  minWidth: 90.0,
  initialLabelIndex: 1,
  cornerRadius: 20.0,
  activeFgColor: Colors.white,
  inactiveBgColor: Colors.grey,
  inactiveFgColor: Colors.white,
  totalSwitches: 2,
  labels: ['Male', 'Female'],
  icons: [FontAwesomeIcons.mars, FontAwesomeIcons.venus],
  activeBgColors: [[Colors.blue],[Colors.pink]],
  onToggle: (index) {
    print('switched to: $index');
  },
),

With icons, text and different active background colors

With border color, border width, icons, custom height and different active background colors
ToggleSwitch(
  minWidth: 90.0,
  minHeight: 70.0,
  initialLabelIndex: 2,
  cornerRadius: 20.0,
  activeFgColor: Colors.white,
  inactiveBgColor: Colors.grey,
  inactiveFgColor: Colors.white,
  totalSwitches: 3,
  icons: [
    FontAwesomeIcons.mars,
    FontAwesomeIcons.venus,
    FontAwesomeIcons.transgender
  ],
  iconSize: 30.0,
  borderWidth: 2.0,
  borderColor: [Colors.blueGrey],
  activeBgColors: [[Colors.blue], [Colors.pink], [Colors.purple]],
  onToggle: (index) {
    print('switched to: $index');
  },
),

With border color, border width, icons, custom height and different active background colors

With gradient border color, divider color and gradient active background colors
ToggleSwitch(
  minWidth: 90.0,
  minHeight: 70.0,
  initialLabelIndex: 0,
  cornerRadius: 20.0,
  activeFgColor: Colors.white,
  inactiveBgColor: Colors.grey,
  inactiveFgColor: Colors.white,
  totalSwitches: 3,
  icons: [
    FontAwesomeIcons.facebook,
    FontAwesomeIcons.twitter,
    FontAwesomeIcons.instagram
  ],
  iconSize: 30.0,
  borderColor: [Color(0xff3b5998), Color(0xff8b9dc3), Color(0xff00aeff), Color(0xff0077f2), Color(0xff962fbf), Color(0xff4f5bd5)],
  dividerColor: Colors.blueGrey,
  activeBgColors: [[Color(0xff3b5998), Color(0xff8b9dc3)], [Color(0xff00aeff), Color(0xff0077f2)], [Color(0xfffeda75), Color(0xfffa7e1e), Color(0xffd62976), Color(0xff962fbf), Color(0xff4f5bd5)]],
  onToggle: (index) {
    print('switched to: $index');
  },
),

With gradient border color, divider color and gradient active background colors

With bounceInOut animation
ToggleSwitch(
  minWidth: 90.0,
  minHeight: 70.0,
  initialLabelIndex: 0,
  cornerRadius: 20.0,
  activeFgColor: Colors.white,
  inactiveBgColor: Colors.grey,
  inactiveFgColor: Colors.white,
  totalSwitches: 2,
  icons: [
    FontAwesomeIcons.lightbulb,
    FontAwesomeIcons.solidLightbulb,
  ],
  iconSize: 30.0,
  activeBgColors: [[Colors.black45, Colors.black26], [Colors.yellow, Colors.orange]],
  animate: true, // with just animate set to true, default curve = Curves.easeIn
  curve: Curves.bounceInOut, // animate must be set to true when using custom curve
  onToggle: (index) {
    print('switched to: $index');
  },
),

With bounceInOut animation

With radius style
ToggleSwitch(
  minWidth: 90.0,
  cornerRadius: 20.0,
  activeBgColors: [[Colors.green[800]!], [Colors.red[800]!]],
  activeFgColor: Colors.white,
  inactiveBgColor: Colors.grey,
  inactiveFgColor: Colors.white,
  initialLabelIndex: 1,
  totalSwitches: 2,
  labels: ['True', 'False'],
  radiusStyle: true,
  onToggle: (index) {
    print('switched to: $index');
  },
),

With radius style

With custom text styles, null initial label, double tap to de-activate
ToggleSwitch(
  minWidth: 90.0,
  cornerRadius: 20.0,
  inactiveFgColor: Colors.white,
  initialLabelIndex: null,
  doubleTapDisable: true, // re-tap active widget to de-activate
  totalSwitches: 3,
  labels: ['Normal', 'Bold', 'Italic'],
  customTextStyles: [
    null,
    TextStyle(
        color: Colors.brown,
        fontSize: 18.0,
        fontWeight: FontWeight.w900),
    TextStyle(
        color: Colors.black,
        fontSize: 16.0,
        fontStyle: FontStyle.italic)
  ],
  onToggle: (index) {
    print('switched to: $index');
  },
),

With custom text styles, null initial label, double tap to de-activate

With custom icons
ToggleSwitch(
  minWidth: 90.0,
  minHeight: 90.0,
  cornerRadius: 20.0,
  activeBgColors: [
    [Color(0xfffdbb0a)],
    [Colors.black54],
    [Colors.white54]
  ],
  inactiveFgColor: Colors.white,
  initialLabelIndex: 2,
  totalSwitches: 3,
  customIcons: [
    Icon(
      FontAwesomeIcons.ccVisa,
      color: Color(0xff1a1f71),
      size: 55.0,
    ),
    Icon(
      FontAwesomeIcons.ccMastercard,
      color: Color(0xffF79E1B),
      size: 55.0,
    ),
    Icon(
      FontAwesomeIcons.ccAmex,
      color: Color(0xff27AEE3),
      size: 55.0,
    )
  ],
  onToggle: (index) {
    print('switched to: $index');
  },
),

With custom icons

Vertical toggle switch with active border
ToggleSwitch(
  activeBorders: [
    Border.all(
      color: Colors.purple,
      width: 3.0,
    ),
    Border.all(
      color: Colors.yellow.shade700,
      width: 3.0,
    ),
    Border.all(
      color: Colors.deepOrangeAccent,
      width: 3.0,
    ),
    Border.all(
      color: Colors.blue.shade500,
      width: 3.0,
    ),
  ],
  activeFgColor: Colors.black54,
  isVertical: true,
  minWidth: 150.0,
  radiusStyle: true,
  cornerRadius: 20.0,
  initialLabelIndex: 2,
  activeBgColors: [
    [Colors.purpleAccent],
    [Colors.yellow],
    [Colors.orange],
    [Colors.lightBlueAccent]
  ],
  labels: ['Spring', 'Summer', 'Fall', 'Winter'],
  onToggle: (index) {
    print('switched to: $index');
  },
),

Vertical toggle switch with active border

Custom widths greater than device width
SingleChildScrollView(
  scrollDirection: Axis.horizontal,
  child: Scrollbar(
    child: Padding(
      padding: const EdgeInsets.symmetric(horizontal: 10.0),
      child: ToggleSwitch(
        customWidths: [300.0, 100.0, 100.0],
        cornerRadius: 20.0,
        activeBgColors: [
          [Colors.green],
          [Colors.redAccent],
          [Colors.blue]
        ],
        activeFgColor: Colors.white,
        inactiveBgColor: Colors.grey,
        inactiveFgColor: Colors.white,
        labels: ['Yes, the statement above is true', 'False', 'Other'],
        onToggle: (index) {
          print('switched to: $index');
        },
      ),
    ),
  ),
),

Custom widths greater than device width

Multi-line text with custom text style inheriting activeFgColor and inactiveFgColor
ToggleSwitch(
  initialLabelIndex: 0,
  minHeight: 100.0,
  minWidth: 100.0,
  activeBgColor: [Colors.blueAccent.shade200],
  activeFgColor: Colors.yellow,
  customTextStyles: [
    TextStyle(
      fontSize: 15.0
    )
  ],
  multiLineText: true,
  centerText: true,
  totalSwitches: 2,
  labels: ['This is multi-line text.', 'One line'],
  onToggle: (index) {
    print('switched to: $index');
  },
),

Multi-line text with custom text style inheriting activeFgColor and inactiveFgColor

Cancel toggle
ToggleSwitch(
  initialLabelIndex: 0,
  inactiveBgColor: Colors.black54,
  activeBgColor: [Colors.black],
  totalSwitches: 3,
  minHeight: 80.0,
  minWidth: 80.0,
  customIcons: [
    Icon(
      FontAwesomeIcons.bitcoin,
      color: Color(0xFFF2A900),
      size: 50.0,
    ),
    Icon(
      FontAwesomeIcons.ethereum,
      color: Color(0xFF5ca6ce),
      size: 50.0,
    ),
    Icon(
      FontAwesomeIcons.dollarSign,
      color: Colors.green.shade700,
      size: 50.0,
    )
  ],
  onToggle: (index) {
    print('switched to: $index');
  },
  cancelToggle: (index) async {
    String selection = index == 0
        ? 'Bitcoin'
        : index == 1
            ? 'Ethereum'
            : 'Fiat';
    return await showDialog(
      context: context,
      builder: (dialogContext) => AlertDialog(
        content: Text("Select $selection?"),
        actions: [
          TextButton(
              child: Text("No",
                  style: TextStyle(color: Colors.red)),
              onPressed: () {
                Navigator.pop(dialogContext, true);
              }),
          TextButton(
              child: Text("Yes",
                  style: TextStyle(color: Colors.black)),
              onPressed: () {
                Navigator.pop(dialogContext, false);
              })
        ],
      ),
    );
  },
),

Cancel toggle

Custom widgets
ToggleSwitch(
  initialLabelIndex: 0,
  minHeight: 75.0,
  minWidth: double.maxFinite,
  activeBgColor: [Colors.blue.shade50],
  inactiveBgColor: Colors.white,
  dividerColor: Colors.blue,
  borderColor: [Colors.blue],
  borderWidth: 1.0,
  customWidgets: [
    // Overrides default widgets, foreground colors
    Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Icon(
          FontAwesomeIcons.star,
        ),
        const SizedBox(width: 10.0),
        Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(
              'Free',
              style: TextStyle(
                fontWeight: FontWeight.bold,
              ),
              maxLines: 1,
              overflow: TextOverflow.ellipsis,
            ),
            Text(
              '\$0.00',
              maxLines: 1,
              overflow: TextOverflow.ellipsis,
            ),
          ],
        ),
      ],
    ),
    Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Icon(
          FontAwesomeIcons.solidStar,
          color: Color(0xffC0C0C0),
        ),
        const SizedBox(width: 10.0),
        Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(
              'Standard',
              style: TextStyle(
                fontWeight: FontWeight.bold,
              ),
              maxLines: 1,
              overflow: TextOverflow.ellipsis,
            ),
            Text(
              '\$4.99',
              maxLines: 1,
              overflow: TextOverflow.ellipsis,
            ),
          ],
        ),
      ],
    ),
    Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        Icon(
          FontAwesomeIcons.solidStar,
          color: Color(0xffFFD700),
        ),
        const SizedBox(width: 10.0),
        Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            Text(
              'Pro',
              style: TextStyle(
                fontWeight: FontWeight.bold,
              ),
              maxLines: 1,
              overflow: TextOverflow.ellipsis,
            ),
            Text(
              '\$9.99',
              maxLines: 1,
              overflow: TextOverflow.ellipsis,
            ),
          ],
        ),
      ],
    ),
  ],
  onToggle: (index) {
    print('switched to: $index');
  },
),

Custom widgets

TextDirection.rtl and corner radius
// When ToggleSwitch is used with Directionality widget and textDirection is set to TextDirection.rtl (right-to-left), 
// switches are displayed right to left along with their respective index values. In this case, corner radius of switches aren't set correctly. 
// To fix this, please use textDirectionRTL parameter and set it to true as shown in the example below. 
Directionality(
  textDirection: TextDirection.rtl,
  child: ToggleSwitch(
    initialLabelIndex: 0,
    cornerRadius: 12.0,
    textDirectionRTL: true,
    activeFgColor: Colors.white,
    totalSwitches: 2,
    labels: ['left', 'right'],
    onToggle: (index) {
      print('switched to: $index');
    },
  ),
),
setState() inside onToggle

Example code with explanation

Code Contributors

Pramod Joshi GitHub avatar
GitHub 作者

Pramod Joshi ↗

University of IllinoisChampaign, IL
语言DartSwiftKotlinObjective-C

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使用的依赖

依赖清单 2 项

  • flutter{"sdk":"flutter"}
  • flutter_test开发依赖{"sdk":"flutter"}

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