dencend_toast 0.0.1

dencend_toast: ^0.0.1 copied to clipboard

example/lib/main.dart

import 'package:dencend_toast/dencend_toast.dart';
import 'package:dencend_toast/toast_style.dart';
import 'package:dencend_toast/toast_types.dart';
import 'package:flutter/material.dart';
import 'dart:async';

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

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';

  @override
  void initState() {
    super.initState();
    initPlatformState();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion = 'Unknown platform version';
    } catch (e) {
      platformVersion = 'Failed to get platform version: $e';
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('DencendToast 示例应用'),
          backgroundColor: Colors.blue,
        ),
        backgroundColor: Colors.grey[100],
        body: SingleChildScrollView(
          child: Center(
            child: Padding(
              padding: const EdgeInsets.all(16.0),
              child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                children: [
                  const Text(
                    'DencendToast 功能演示',
                    style: TextStyle(
                      fontSize: 24,
                      fontWeight: FontWeight.bold,
                    ),
                  ),
                  const SizedBox(height: 20),
                  Text(
                    '运行平台: $_platformVersion',
                    style: TextStyle(
                      fontSize: 16,
                      color: Colors.grey[600],
                    ),
                  ),
                  const SizedBox(height: 40),

                  // 基本Toast演示
                  _buildSection(
                    title: '基本Toast演示',
                    children: [
                      _buildButton(
                        text: '显示短时Toast',
                        onPressed: () => _showToast(Duration(seconds: 1)),
                        color: Colors.blue,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '显示长时Toast',
                        onPressed: () => _showToast(Duration(seconds: 5)),
                        color: Colors.green,
                      ),
                    ],
                  ),
                  const SizedBox(height: 20),

                  // 顶部Toast演示
                  _buildSection(
                    title: '顶部Toast演示',
                    children: [
                      _buildButton(
                        text: '顶部居中',
                        onPressed: () => _showPositionedToast(DencendToastGravity.top),
                        color: Colors.orange,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '左上角',
                        onPressed: () => _showPositionedToast(DencendToastGravity.topLeft),
                        color: Colors.blue,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '右上角',
                        onPressed: () => _showPositionedToast(DencendToastGravity.topRight),
                        color: Colors.green,
                      ),
                    ],
                  ),
                  const SizedBox(height: 20),
                  
                  // 中部Toast演示
                  _buildSection(
                    title: '中部Toast演示',
                    children: [
                      _buildButton(
                        text: '屏幕中心',
                        onPressed: () => _showPositionedToast(DencendToastGravity.center),
                        color: Colors.purple,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '左侧中央',
                        onPressed: () => _showPositionedToast(DencendToastGravity.centerLeft),
                        color: Colors.teal,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '右侧中央',
                        onPressed: () => _showPositionedToast(DencendToastGravity.centerRight),
                        color: Colors.indigo,
                      ),
                    ],
                  ),
                  const SizedBox(height: 20),
                  
                  // 底部Toast演示
                  _buildSection(
                    title: '底部Toast演示',
                    children: [
                      _buildButton(
                        text: '底部居中',
                        onPressed: () => _showPositionedToast(DencendToastGravity.bottom),
                        color: Colors.red,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '左下角',
                        onPressed: () => _showPositionedToast(DencendToastGravity.bottomLeft),
                        color: Colors.yellow,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '右下角',
                        onPressed: () => _showPositionedToast(DencendToastGravity.bottomRight),
                        color: Colors.pink,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '键盘上方',
                        onPressed: () => _showPositionedToast(DencendToastGravity.snackbar),
                        color: Colors.brown,
                      ),
                    ],
                  ),
                  const SizedBox(height: 20),
                  
                  // 特殊位置演示
                  _buildSection(
                    title: '特殊位置演示',
                    children: [
                      _buildButton(
                        text: '无特定位置',
                        onPressed: () => _showPositionedToast(DencendToastGravity.none),
                        color: Colors.grey,
                      ),
                    ],
                  ),
                  const SizedBox(height: 20),

                  // 自定义样式演示
                  _buildSection(
                    title: '自定义样式演示',
                    children: [
                      _buildButton(
                        text: '自定义颜色Toast',
                        onPressed: _showCustomColorToast,
                        color: Colors.teal,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '自定义大小Toast',
                        onPressed: _showCustomSizeToast,
                        color: Colors.indigo,
                      ),
                    ],
                  ),
                  const SizedBox(height: 20),

                  // 带图标演示
                  _buildSection(
                    title: '带图标Toast演示',
                    children: [
                      _buildButton(
                        text: '成功Toast',
                        onPressed: () => _showIconToast('成功操作', 'success'),
                        color: Colors.green,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '错误Toast',
                        onPressed: () => _showIconToast('操作失败', 'error'),
                        color: Colors.red,
                      ),
                    ],
                  ),
                  const SizedBox(height: 20),
                  
                  // 自定义图标位置演示
                  _buildSection(
                    title: '自定义图标位置演示',
                    children: [
                      _buildButton(
                        text: '左图标',
                        onPressed: () => _showIconPositionToast(ToastIconPosition.left),
                        color: Colors.blue,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '右图图标',
                        onPressed: () => _showIconPositionToast(ToastIconPosition.right),
                        color: Colors.purple,
                      ),
                    ],
                  ),
                  const SizedBox(height: 20),
                  
                  // 自定义图标样式演示
                  _buildSection(
                    title: '自定义图标样式演示',
                    children: [
                      _buildButton(
                        text: '大图图标',
                        onPressed: () => _showIconStyleToast(32.0),
                        color: Colors.orange,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '彩色图标',
                        onPressed: () => _showIconColorToast(),
                        color: Colors.teal,
                      ),
                    ],
                  ),
                  const SizedBox(height: 20),

                  // 控制演示
                  _buildSection(
                    title: 'Toast控制演示',
                    children: [
                      _buildButton(
                        text: '显示Toast',
                        onPressed: _showControlledToast,
                        color: Colors.blue,
                      ),
                      const SizedBox(width: 16),
                      _buildButton(
                        text: '取消Toast',
                        onPressed: _cancelToast,
                        color: Colors.grey,
                      ),
                    ],
                  ),
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }

  // 构建一个节标题
  Widget _buildSection({required String title, required List<Widget> children}) {
    return Container(
      width: double.infinity,
      padding: const EdgeInsets.all(16.0),
      margin: const EdgeInsets.only(bottom: 16.0),
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8.0),
        boxShadow: [
          BoxShadow(
            color: Colors.grey.withAlpha(51), // 0.2 opacity
            spreadRadius: 2,
            blurRadius: 5,
            offset: const Offset(0, 3),
          ),
        ],
      ),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Text(
            title,
            style: TextStyle(
              fontSize: 18,
              fontWeight: FontWeight.bold,
              color: Colors.grey[800],
            ),
          ),
          const SizedBox(height: 12),
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceAround,
            children: children,
          ),
        ],
      ),
    );
  }

  // 构建一个按钮
  Widget _buildButton({
    required String text,
    required VoidCallback onPressed,
    required Color color,
  }) {
    return Expanded(
      child: ElevatedButton(
        onPressed: onPressed,
        style: ElevatedButton.styleFrom(
          backgroundColor: color,
          padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 12.0),
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(8.0),
          ),
        ),
        child: Text(
          text,
          style: const TextStyle(
            color: Colors.white,
            fontWeight: FontWeight.w500,
          ),
        ),
      ),
    );
  }

  // 显示基本Toast
  void _showToast(Duration duration) {
    // 确定时长文本
    final String durationText = duration.inSeconds < 2 ? "短" : "长";
    
    DencendToast.showToast(
      msg: '这是一个${durationText}时间的Toast',
      toastDuration: duration,
    );
  }

  // 显示带位置的Toast
  void _showPositionedToast(DencendToastGravity gravity) {
    String positionText = '';
    switch (gravity) {
      case DencendToastGravity.top:
        positionText = '顶部居中';
        break;
      case DencendToastGravity.center:
        positionText = '屏幕中心';
        break;
      case DencendToastGravity.bottom:
        positionText = '底部居中';
        break;
      case DencendToastGravity.topLeft:
        positionText = '左上角';
        break;
      case DencendToastGravity.topRight:
        positionText = '右上角';
        break;
      case DencendToastGravity.bottomLeft:
        positionText = '左下角';
        break;
      case DencendToastGravity.bottomRight:
        positionText = '右下角';
        break;
      case DencendToastGravity.centerLeft:
        positionText = '左侧中央';
        break;
      case DencendToastGravity.centerRight:
        positionText = '右侧中央';
        break;
      case DencendToastGravity.snackbar:
        positionText = '键盘上方';
        break;
      case DencendToastGravity.none:
        positionText = '无特定位置';
        break;
      default:
        positionText = '未知';
    }

    DencendToast.showToast(
      msg: '这是一个显示在$positionText的Toast',
      gravity: gravity,
      style: ToastStyle(
        borderRadius: 12.0,
        fontSize: 11.0,
      ),
    );
  }

  // 显示自定义颜色的Toast
  void _showCustomColorToast() {
    DencendToast.showToast(
      msg: '这是一个自定义颜色的Toast',
      style: ToastStyle(
        backgroundColor: Colors.teal,
        textColor: Colors.white,
      ),
    );
  }

  // 显示自定义大小的Toast
  void _showCustomSizeToast() {
    DencendToast.showToast(
      msg: '这是一个自定义大小的Toast',
      style: ToastStyle(
        fontSize: 20.0,
      ),
    );
  }

  // 显示带图标的Toast
  void _showIconToast(String message, String type) {
    // 使用Unicode图标
    String icon = '📝'; // 默认图标
    Color backgroundColor = Colors.blue;
    Color textColor = Colors.white;
    
    // 根据类型设置不同的图标和颜色
    switch (type) {
      case 'success':
        icon = '✅';
        backgroundColor = Colors.green;
        break;
      case 'error':
        icon = '❌';
        backgroundColor = Colors.red;
        break;
      case 'warning':
        icon = '⚠️';
        backgroundColor = Colors.orange;
        break;
      case 'info':
        icon = 'ℹ️';
        backgroundColor = Colors.blue;
        break;
      default:
        icon = '📝';
        backgroundColor = Colors.grey;
    }
    
    DencendToast.showToast(
      msg: message,
      style: ToastStyle(
        backgroundColor: backgroundColor,
        textColor: textColor,
        fontSize: 12,
        iconAsset: icon,
        iconSize: 24.0,
        iconColor: textColor,
        iconPosition: ToastIconPosition.left,
        iconSpacing: 8.0,
        borderRadius: 12.0,
      ),
    );
  }

  // 显示不同图标位置的Toast
  void _showIconPositionToast(ToastIconPosition position) {
    String positionText = position == ToastIconPosition.left ? '左侧' : '右侧';
    
    DencendToast.showToast(
      msg: '这是一个图标在$positionText的Toast',
      style: ToastStyle(
        iconAsset: '📍',
        iconSize: 24.0,
        iconPosition: position,
        iconSpacing: 12.0,
        backgroundColor: Colors.blue,
                fontSize: 12,

        textColor: Colors.white,
        borderRadius: 12.0,
      ),
    );
  }

  // 显示不同图标大小的Toast
  void _showIconStyleToast(double iconSize) {
    DencendToast.showToast(
      msg: '这是一个图标大小为${iconSize.toInt()}px的Toast',
      style: ToastStyle(
        iconAsset: '🔍',
        iconSize: iconSize,
        iconPosition: ToastIconPosition.left,
        backgroundColor: Colors.orange,
        textColor: Colors.white,
        borderRadius: 12.0,
      ),
    );
  }

  // 显示彩色图标的Toast
  void _showIconColorToast() {
    DencendToast.showToast(
      msg: '这是一个彩色图标的Toast',
      style: ToastStyle(
        iconAsset: '🎨',
        iconSize: 28.0,
        iconColor: Colors.yellow,
        iconPosition: ToastIconPosition.left,
        iconSpacing: 12.0,
        backgroundColor: Colors.teal,
        textColor: Colors.white,
        borderRadius: 12.0,
      ),
    );
  }

  // 显示可控Toast
  void _showControlledToast() {
    DencendToast.showToast(
      msg: '这是一个可以手动取消的Toast',
      toastDuration: Duration(seconds: 5), // 长时长，对应原来的ToastLength.long
    );
  }

  // 取消Toast
  void _cancelToast() {
    DencendToast.cancel();
    _showMessage('Toast已取消');
  }

  // 显示消息（使用Flutter的Toast来避免循环）
  void _showMessage(String message) {
    ScaffoldMessenger.of(context).showSnackBar(
      SnackBar(
        content: Text(message),
        duration: const Duration(seconds: 1),
      ),
    );
  }
}