Flutter表情符号管理插件flutter_emoji_suite的使用

flutter_emoji_suite 是一个用于管理和显示表情符号的 Flutter 插件。它支持在 Android 和 iOS 平台上使用。

完整示例代码

以下是一个完整的示例代码，展示了如何使用 flutter_emoji_suite 插件来管理表情符号。

import 'package:flutter/material.dart';
import 'package:flutter_emoji_suite/flutter_emoji_suite.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Emoji Suite Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: FlutterEmojiSuiteDemo(),
    );
  }
}

class FlutterEmojiSuiteDemo extends StatefulWidget {
  @override
  _FlutterEmojiSuiteDemoState createState() => _FlutterEmojiSuiteDemoState();
}

class _FlutterEmojiSuiteDemoState extends State<FlutterEmojiSuiteDemo> {
  TextEditingController controller = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter Emoji Suite Demo'),
      ),
      body: Container(
        child: Column(
          children: [
            // 文本输入框
            TextField(
              controller: controller,
            ),
            // 显示去除表情后的文本
            Text('${emojiParser.unemojify(controller.text)}'),
            // 显示将去除的表情重新添加回文本
            Text('${emojiParser.emojify(emojiParser.unemojify(controller.text))}'),
            // 表情选择器
            Expanded(
              child: EmojiPicker(
                emojiPickObserver: (dynamic emoji) {
                  setState(() {
                    controller.text = '${controller.text}$emoji';
                  });
                },
                emojiParser: emojiParser,
              ),
            ),
          ],
        ),
      ),
    );
  }
}

// 初始化自定义表情解析器
EmojiParser emojiParser = EmojiParser(customEmoji: '{"开心":"😀","呲牙":"😁","笑哭":"😂"}');

代码解释

1. 导入必要的库

   import 'package:flutter/material.dart';
   import 'package:flutter_emoji_suite/flutter_emoji_suite.dart';
   

2. 初始化应用

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

3. 创建应用入口

   class MyApp extends StatelessWidget {
     @override
     Widget build(BuildContext context) {
       return MaterialApp(
         title: 'Flutter Emoji Suite Demo',
         theme: ThemeData(
           primarySwatch: Colors.blue,
           visualDensity: VisualDensity.adaptivePlatformDensity,
         ),
         home: FlutterEmojiSuiteDemo(),
       );
     }
   }
   

4. 创建主页面

   class FlutterEmojiSuiteDemo extends StatefulWidget {
     @override
     _FlutterEmojiSuiteDemoState createState() => _FlutterEmojiSuiteDemoState();
   }
   

5. 实现页面状态

   class _FlutterEmojiSuiteDemoState extends State<FlutterEmojiSuiteDemo> {
     TextEditingController controller = TextEditingController();
   
     @override
     Widget build(BuildContext context) {
       return Scaffold(
         appBar: AppBar(
           title: Text('Flutter Emoji Suite Demo'),
         ),
         body: Container(
           child: Column(
             children: [
               // 文本输入框
               TextField(
                 controller: controller,
               ),
               // 显示去除表情后的文本
               Text('${emojiParser.unemojify(controller.text)}'),
               // 显示将去除的表情重新添加回文本
               Text('${emojiParser.emojify(emojiParser.unemojify(controller.text))}'),
               // 表情选择器
               Expanded(
                 child: EmojiPicker(
                   emojiPickObserver: (dynamic emoji) {
                     setState(() {
                       controller.text = '${controller.text}$emoji';
                     });
                   },
                   emojiParser: emojiParser,
                 ),
               ),
             ],
           ),
         ),
       );
     }
   }
   

6. 初始化自定义表情解析器

   EmojiParser emojiParser = EmojiParser(customEmoji: '{"开心":"😀","呲牙":"😁","笑哭":"😂"}');