Flutter动画进度按钮插件animate_progress_button的使用

Flutter动画进度按钮插件animate_progress_button的使用

animate_progress_button 是一个用于在 Flutter 应用中创建具有动画效果的进度按钮的插件。通过该插件，您可以轻松地为按钮添加加载状态、成功状态和失败状态，并且可以自定义这些状态下的文本和图标。

使用步骤

1. 添加依赖 在您的 pubspec.yaml 文件中添加 animate_progress_button 依赖项：

   dependencies:
     animate_progress_button: ^0.0.1
   

2. 导入包 在需要使用进度按钮的 Dart 文件中导入 animate_progress_button 包：

   import 'package:animate_progress_button/animate_progress_button.dart';
   

3. 创建进度按钮 使用 ProgressButton.icon 创建一个带有图标的进度按钮，或者使用 ProgressButton.text 创建一个仅有文本的进度按钮。

完整示例代码

import 'dart:async';
import 'dart:math';

import 'package:flutter/material.dart';
import 'package:animate_progress_button/animate_progress_button.dart';
import 'package:animate_progress_button/icon_button.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  // 这个小部件是你的应用的根组件。
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: '进度按钮示例',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: ProgressButtonHomePage(title: '进度按钮'),
    );
  }
}

class ProgressButtonHomePage extends StatefulWidget {
  ProgressButtonHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  [@override](/user/override)
  _ProgressButtonHomePageState createState() => _ProgressButtonHomePageState();
}

class _ProgressButtonHomePageState extends State<ProgressButtonHomePage> {
  ButtonState stateOnlyText = ButtonState.idle;
  ButtonState stateTextWithIcon = ButtonState.idle;
  ButtonState stateTextWithIconMinWidthState = ButtonState.idle;

  Widget buildTextWithIcon() {
    return ProgressButton.icon(
      iconedButtons: {
        ButtonState.idle: IconedButton(
          text: "登录",
          color: Color.fromRGBO(84, 157, 255, 1),
          icon: Icon(Icons.send, color: Colors.white),
        ),
        ButtonState.loading: IconedButton(
          text: "加载中",
          color: Color.fromRGBO(84, 157, 255, 1),
        ),
        ButtonState.fail: IconedButton(
          text: "失败",
          color: Colors.red,
        ),
        ButtonState.success: IconedButton(
          text: "",
          icon: Icon(Icons.check_circle, color: Colors.white),
          color: Color.fromRGBO(84, 157, 255, 1),
        ),
      },
      onPressed: onPressedIconWithText,
      state: stateTextWithIcon,
    );
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            // 可以在这里添加其他类型的按钮
            Container(
              height: 32,
            ),
            buildTextWithIcon(),
            Container(
              height: 32,
            ),
            // 可以在这里添加其他类型的按钮
          ],
        ),
      ),
    );
  }

  void onPressedCustomButton() {
    setState(() {
      switch (stateOnlyText) {
        case ButtonState.idle:
          stateOnlyText = ButtonState.loading;
          break;
        case ButtonState.loading:
          stateOnlyText = ButtonState.fail;
          break;
        case ButtonState.success:
          stateOnlyText = ButtonState.idle;
          break;
        case ButtonState.fail:
          stateOnlyText = ButtonState.success;
          break;
      }
    });
  }

  void onPressedIconWithText() {
    switch (stateTextWithIcon) {
      case ButtonState.idle:
        stateTextWithIcon = ButtonState.loading;
        Future.delayed(Duration(seconds: 1), () {
          setState(() {
            stateTextWithIcon = Random.secure().nextBool()
                ? ButtonState.success
                : ButtonState.fail;
          });
        });
        break;
      case ButtonState.loading:
        break;
      case ButtonState.success:
        stateTextWithIcon = ButtonState.idle;
        break;
      case ButtonState.fail:
        stateTextWithIcon = ButtonState.idle;
        break;
    }
    setState(() {
      stateTextWithIcon = stateTextWithIcon;
    });
  }

  void onPressedIconWithMinWidthStateText() {
    switch (stateTextWithIcon) {
      case ButtonState.idle:
        stateTextWithIconMinWidthState = ButtonState.loading;
        Future.delayed(Duration(seconds: 1), () {
          setState(() {
            stateTextWithIconMinWidthState = Random.secure().nextBool()
                ? ButtonState.success
                : ButtonState.fail;
          });
        });
        break;
      case ButtonState.loading:
        break;
      case ButtonState.success:
        stateTextWithIconMinWidthState = ButtonState.idle;
        break;
      case ButtonState.fail:
        stateTextWithIconMinWidthState = ButtonState.idle;
        break;
    }
    setState(() {
      stateTextWithIconMinWidthState = stateTextWithIconMinWidthState;
    });
  }
}