【HarmonyOS】RN_of_HarmonyOS实战项目_富文本编辑器

lbb 小魔仙2026-02-20 21:19

【HarmonyOS】RN of HarmonyOS实战项目：TextInput富文本编辑器实现


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  • [【HarmonyOS】RN of HarmonyOS实战项目：TextInput富文本编辑器实现](#【HarmonyOS】RN of HarmonyOS实战项目：TextInput富文本编辑器实现)
    • 一、项目背景
    • 二、技术架构
      • [2.1 架构设计](#2.1 架构设计)
      • [2.2 数据结构设计](#2.2 数据结构设计)
    • 三、核心实现代码
      • [3.1 富文本编辑器核心组件](#3.1 富文本编辑器核心组件)
      • [3.2 @提及功能实现](#3.2 @提及功能实现)
      • [3.3 话题标签检测器](#3.3 话题标签检测器)
      • [3.4 使用示例](#3.4 使用示例)
    • 四、HarmonyOS平台优化
      • [4.1 键盘避让优化](#4.1 键盘避让优化)
      • [4.2 性能优化策略](#4.2 性能优化策略)
    • 五、总结

项目概述：本文详细介绍在HarmonyOS平台上使用React Native实现功能完整的富文本编辑器，涵盖文本格式化、表情插入、@提及、话题标签等社交应用常见功能，提供从架构设计到工程实践的完整解决方案。

欢迎加入开源鸿蒙跨平台社区： https://openharmonycrossplatform.csdn.net

一、项目背景

在现代社交应用中，富文本编辑器是核心功能之一。用户需要支持多种格式的文本编辑体验，包括粗体、斜体、颜色、表情、@用户、话题标签等。在HarmonyOS平台上实现这些功能需要考虑：

  • 文本格式化：支持多种内联样式（粗体、斜体、颜色、字体大小等）
  • 特殊内容插入：表情符号、@提及、话题标签、链接等
  • 光标管理：在格式化内容间正确导航和选择
  • 性能优化：大量文本时的流畅编辑体验
  • 平台适配：HarmonyOS特有的输入法和键盘行为

二、技术架构

2.1 架构设计

用户输入层
输入处理器
文本解析引擎
格式标记器
渲染引擎
React Native Text组件
命令队列
历史记录管理器
撤销/重做功能

2.2 数据结构设计

typescript 复制代码 
/**
 * 富文本片段类型定义
 */
type TextFragmentType =
  | 'text'          // 普通文本
  | 'bold'          // 粗体
  | 'italic'        // 斜体
  | 'code'          // 代码
  | 'mention'       // @提及
  | 'hashtag'       // 话题标签
  | 'link'          // 链接
  | 'emoji';        // 表情

/**
 * 富文本片段接口
 */
interface TextFragment {
  type: TextFragmentType;
  content: string;
  styles?: TextStyle;
  metadata?: {
    userId?: string;      // 用于@提及
    url?: string;         // 用于链接
    color?: string;       // 自定义颜色
    size?: number;        // 字体大小
  };
}

/**
 * 富文本编辑器状态
 */
interface RichTextState {
  fragments: TextFragment[];
  selection: {
    start: number;
    end: number;
  };
  history: {
    past: TextFragment[][];
    present: TextFragment[];
    future: TextFragment[][];
  };
}

三、核心实现代码

3.1 富文本编辑器核心组件

typescript 复制代码 
/**
 * 富文本编辑器组件
 * 支持多种格式化和特殊内容插入
 *
 * @platform HarmonyOS 2.0+
 * @react-native 0.72+
 */
import React, { useState, useRef, useCallback, useEffect, useMemo } from 'react';
import {
  View,
  Text,
  TextInput,
  StyleSheet,
  TouchableOpacity,
  ScrollView,
  KeyboardAvoidingView,
  Platform,
  LayoutChangeEvent,
} from 'react-native';

interface RichTextEditorProps {
  placeholder?: string;
  maxLength?: number;
  minHeight?: number;
  maxHeight?: number;
  onTextChange?: (fragments: TextFragment[]) => void;
  onSubmit?: (fragments: TextFragment[]) => void;
  enableMention?: boolean;
  enableHashtag?: boolean;
  enableEmoji?: boolean;
}

export const RichTextEditor: React.FC<RichTextEditorProps> = ({
  placeholder = '输入内容...',
  maxLength = 5000,
  minHeight = 100,
  maxHeight = 200,
  onTextChange,
  onSubmit,
  enableMention = true,
  enableHashtag = true,
  enableEmoji = true,
}) => {
  const [fragments, setFragments] = useState<TextFragment[]>([
    { type: 'text', content: '' }
  ]);
  const [currentStyle, setCurrentStyle] = useState<Partial<TextStyle>>({});
  const [height, setHeight] = useState(minHeight);
  const [isFormatting, setIsFormatting] = useState(false);

  const inputRef = useRef<TextInput>(null);
  const selectionRef = useRef({ start: 0, end: 0 });

  /**
   * 计算当前字符位置（考虑格式化标签）
   */
  const getCursorPosition = useCallback((
    frags: TextFragment[],
    position: number
  ): { fragmentIndex: number; offset: number } => {
    let currentPos = 0;

    for (let i = 0; i < frags.length; i++) {
      const fragment = frags[i];
      const fragmentLength = fragment.content.length;

      if (currentPos + fragmentLength >= position) {
        return { fragmentIndex: i, offset: position - currentPos };
      }

      currentPos += fragmentLength;
    }

    return { fragmentIndex: frags.length - 1, offset: 0 };
  }, []);

  /**
   * 应用格式到选中文本
   */
  const applyFormat = useCallback((
    type: TextFragmentType,
    metadata?: any
  ) => {
    const { start, end } = selectionRef.current;

    if (start === end) {
      // 没有选中文本，仅切换当前格式状态
      setCurrentStyle(prev => ({
        ...prev,
        [type === 'bold' ? 'fontWeight' : type === 'italic' ? 'fontStyle' : type]:
          type === 'bold' ? (prev.fontWeight === 'bold' ? 'normal' : 'bold') :
          type === 'italic' ? (prev.fontStyle === 'italic' ? 'normal' : 'italic') :
          prev[type as keyof TextStyle],
      }));
      return;
    }

    setFragments(prev => {
      const newFragments = [...prev];
      const { fragmentIndex, offset } = getCursorPosition(newFragments, start);

      // 处理跨片段的格式化
      let currentPos = 0;
      let selectionStart = start;
      let selectionEnd = end;

      const result: TextFragment[] = [];

      for (let i = 0; i < newFragments.length; i++) {
        const fragment = newFragments[i];
        const fragStart = currentPos;
        const fragEnd = currentPos + fragment.content.length;

        if (fragEnd <= selectionStart || fragStart >= selectionEnd) {
          // 不在选择范围内，保持原样
          result.push(fragment);
        } else {
          // 在选择范围内，需要分割
          const before = fragment.content.slice(
            0,
            Math.max(0, selectionStart - fragStart)
          );
          const middle = fragment.content.slice(
            Math.max(0, selectionStart - fragStart),
            Math.min(fragment.content.length, selectionEnd - fragStart)
          );
          const after = fragment.content.slice(
            Math.min(fragment.content.length, selectionEnd - fragStart)
          );

          if (before) {
            result.push({ ...fragment, content: before });
          }

          if (middle) {
            result.push({
              type,
              content: middle,
              styles: type === 'bold' ? { fontWeight: 'bold' as const } :
                     type === 'italic' ? { fontStyle: 'italic' as const } :
                     type === 'code' ? { fontFamily: 'monospace' } :
                     fragment.styles,
              metadata,
            });
          }

          if (after) {
            result.push({ ...fragment, content: after });
          }
        }

        currentPos = fragEnd;
      }

      // 合并相邻的相同类型片段
      const merged = result.reduce((acc, frag) => {
        const last = acc[acc.length - 1];

        if (
          last &&
          last.type === frag.type &&
          JSON.stringify(last.styles) === JSON.stringify(frag.styles) &&
          JSON.stringify(last.metadata) === JSON.stringify(frag.metadata)
        ) {
          last.content += frag.content;
        } else {
          acc.push({ ...frag });
        }

        return acc;
      }, [] as TextFragment[]);

      return merged;
    });

    setIsFormatting(true);
    setTimeout(() => setIsFormatting(false), 100);
  }, [getCursorPosition]);

  /**
   * 插入特殊内容
   */
  const insertContent = useCallback((
    type: 'mention' | 'hashtag' | 'emoji' | 'link',
    content: string,
    metadata?: any
  ) => {
    const { start, end } = selectionRef.current;

    setFragments(prev => {
      const { fragmentIndex, offset } = getCursorPosition(prev, start);

      const newFragments = [...prev];
      const targetFragment = newFragments[fragmentIndex];

      // 分割当前片段
      const before = targetFragment.content.slice(0, offset);
      const after = targetFragment.content.slice(offset);

      // 创建新片段数组
      const result: TextFragment[] = [];

      if (before) {
        result.push({ ...targetFragment, content: before });
      }

      result.push({
        type,
        content,
        styles: type === 'link' ? { color: '#007AFF', textDecorationLine: 'underline' } :
               type === 'mention' ? { color: '#007AFF', fontWeight: '600' } :
               type === 'hashtag' ? { color: '#007AFF' } :
               {},
        metadata,
      });

      if (after) {
        result.push({ ...targetFragment, content: after });
      }

      // 插入到原位置
      newFragments.splice(fragmentIndex, 1, ...result);

      return newFragments;
    });

    // 重新聚焦输入框
    setTimeout(() => {
      inputRef.current?.focus();
    }, 100);
  }, [getCursorPosition]);

  /**
   * 处理文本变化
   */
  const handleTextChange = useCallback((text: string) => {
    // 简化处理：将整个文本作为一个文本片段
    // 实际项目中需要更复杂的处理来保持格式
    setFragments([{ type: 'text', content: text }]);
    onTextChange?.([{ type: 'text', content: text }]);
  }, [onTextChange]);

  /**
   * 处理光标位置变化
   */
  const handleSelectionChange = useCallback((event: any) => {
    selectionRef.current = event.nativeEvent.selection;
  }, []);

  /**
   * 渲染格式化工具栏
   */
  const renderToolbar = () => {
    return (
      <ScrollView
        horizontal
        showsHorizontalScrollIndicator={false}
        style={styles.toolbar}
        contentContainerStyle={styles.toolbarContent}
      >
        <ToolbarButton
          icon="B"
          label="粗体"
          onPress={() => applyFormat('bold')}
          isActive={currentStyle.fontWeight === 'bold'}
        />
        <ToolbarButton
          icon="I"
          label="斜体"
          onPress={() => applyFormat('italic')}
          isActive={currentStyle.fontStyle === 'italic'}
        />
        <ToolbarButton
          icon="#"
          label="代码"
          onPress={() => applyFormat('code')}
        />
        {enableMention && (
          <ToolbarButton
            icon="@"
            label="提及"
            onPress={() => {
              // 触发用户选择器
              insertContent('mention', '@用户名', { userId: '123' });
            }}
          />
        )}
        {enableHashtag && (
          <ToolbarButton
            icon="#"
            label="话题"
            onPress={() => {
              insertContent('hashtag', '#话题');
            }}
          />
        )}
        {enableEmoji && (
          <ToolbarButton
            icon="😊"
            label="表情"
            onPress={() => {
              insertContent('emoji', '😊');
            }}
          />
        )}
        <ToolbarButton
          icon="🔗"
          label="链接"
          onPress={() => {
            const url = 'https://example.com';
            insertContent('link', '链接文本', { url });
          }}
        />
      </ScrollView>
    );
  };

  /**
   * 获取显示文本
   */
  const displayText = useMemo(() => {
    return fragments.map(f => f.content).join('');
  }, [fragments]);

  /**
   * 渲染预览
   */
  const renderPreview = () => {
    return (
      <View style={styles.previewContainer}>
        <Text style={styles.previewLabel}>预览：</Text>
        <View style={styles.previewContent}>
          {fragments.map((fragment, index) => (
            <Text
              key={index}
              style={fragment.styles}
              onPress={() => {
                if (fragment.type === 'link' && fragment.metadata?.url) {
                  // 处理链接点击
                  console.log('Open link:', fragment.metadata.url);
                }
              }}
            >
              {fragment.content}
            </Text>
          ))}
        </View>
      </View>
    );
  };

  return (
    <KeyboardAvoidingView
      style={styles.container}
      keyboardVerticalOffset={Platform.OS === 'ios' ? 100 : 0}
      behavior="padding"
    >
      <View style={[styles.editorContainer, { minHeight, maxHeight }]}>
        <TextInput
          ref={inputRef}
          style={[styles.input, { height }]}
          value={displayText}
          onChangeText={handleTextChange}
          onSelectionChange={handleSelectionChange}
          placeholder={placeholder}
          placeholderTextColor="#999"
          multiline
          textAlignVertical="top"
          onContentSizeChange={(event) => {
            const newHeight = Math.min(
              Math.max(event.nativeEvent.contentSize.height, minHeight),
              maxHeight
            );
            setHeight(newHeight);
          }}
          maxLength={maxLength}
        />
      </View>

      {renderToolbar()}

      {renderPreview()}

      <View style={styles.footer}>
        <Text style={styles.charCount}>
          {displayText.length} / {maxLength}
        </Text>
        <TouchableOpacity
          style={styles.submitButton}
          onPress={() => onSubmit?.(fragments)}
        >
          <Text style={styles.submitButtonText}>发送</Text>
        </TouchableOpacity>
      </View>
    </KeyboardAvoidingView>
  );
};

/**
 * 工具栏按钮组件
 */
interface ToolbarButtonProps {
  icon: string;
  label: string;
  onPress: () => void;
  isActive?: boolean;
}

const ToolbarButton: React.FC<ToolbarButtonProps> = ({
  icon,
  label,
  onPress,
  isActive = false,
}) => {
  return (
    <TouchableOpacity
      style={[styles.toolbarButton, isActive && styles.toolbarButtonActive]}
      onPress={onPress}
      activeOpacity={0.6}
    >
      <Text style={[styles.toolbarButtonIcon, isActive && styles.toolbarButtonIconActive]}>
        {icon}
      </Text>
      <Text style={styles.toolbarButtonLabel}>{label}</Text>
    </TouchableOpacity>
  );
};

const styles = StyleSheet.create({
  container: {
    backgroundColor: '#fff',
    borderRadius: 12,
    overflow: 'hidden',
  },
  editorContainer: {
    paddingHorizontal: 16,
    paddingTop: 12,
  },
  input: {
    fontSize: 16,
    lineHeight: 24,
    color: '#333',
  },
  toolbar: {
    borderTopWidth: 1,
    borderTopColor: '#E5E5E5',
    borderBottomWidth: 1,
    borderBottomColor: '#E5E5E5',
  },
  toolbarContent: {
    paddingHorizontal: 12,
    paddingVertical: 8,
    gap: 8,
  },
  toolbarButton: {
    paddingHorizontal: 12,
    paddingVertical: 8,
    borderRadius: 8,
    backgroundColor: '#F5F5F5',
    flexDirection: 'row',
    alignItems: 'center',
    gap: 4,
  },
  toolbarButtonActive: {
    backgroundColor: '#007AFF',
  },
  toolbarButtonIcon: {
    fontSize: 16,
    fontWeight: 'bold',
    color: '#666',
  },
  toolbarButtonIconActive: {
    color: '#fff',
  },
  toolbarButtonLabel: {
    fontSize: 12,
    color: '#666',
  },
  previewContainer: {
    padding: 16,
    borderTopWidth: 1,
    borderTopColor: '#E5E5E5',
    backgroundColor: '#FAFAFA',
  },
  previewLabel: {
    fontSize: 12,
    color: '#999',
    marginBottom: 8,
  },
  previewContent: {
    flexDirection: 'row',
    flexWrap: 'wrap',
    gap: 2,
  },
  footer: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    alignItems: 'center',
    paddingHorizontal: 16,
    paddingVertical: 12,
    borderTopWidth: 1,
    borderTopColor: '#E5E5E5',
  },
  charCount: {
    fontSize: 13,
    color: '#999',
  },
  submitButton: {
    backgroundColor: '#007AFF',
    paddingHorizontal: 20,
    paddingVertical: 10,
    borderRadius: 8,
  },
  submitButtonText: {
    color: '#fff',
    fontSize: 15,
    fontWeight: '600',
  },
});

export default RichTextEditor;

3.2 @提及功能实现

typescript 复制代码 
/**
 * @提及建议组件
 * 根据输入显示用户建议列表
 */
import React, { useState, useEffect, useCallback } from 'react';
import {
  View,
  Text,
  TouchableOpacity,
  StyleSheet,
  FlatList,
  TextInput,
} from 'react-native';

interface User {
  id: string;
  username: string;
  avatar?: string;
}

interface MentionSuggestionProps {
  visible: boolean;
  triggerText: string;
  onSelect: (user: User) => void;
  onClose: () => void;
  users: User[];
  position: { x: number; y: number };
}

export const MentionSuggestion: React.FC<MentionSuggestionProps> = ({
  visible,
  triggerText,
  onSelect,
  onClose,
  users,
  position,
}) => {
  const [filteredUsers, setFilteredUsers] = useState<User[]>([]);

  useEffect(() => {
    if (triggerText) {
      const filtered = users.filter(user =>
        user.username.toLowerCase().includes(triggerText.toLowerCase())
      );
      setFilteredUsers(filtered);
    } else {
      setFilteredUsers(users.slice(0, 5)); // 显示前5个
    }
  }, [triggerText, users]);

  const handleSelect = useCallback((user: User) => {
    onSelect(user);
    onClose();
  }, [onSelect, onClose]);

  if (!visible) return null;

  return (
    <View style={[styles.container, { top: position.y + 30, left: position.x }]}>
      <FlatList
        data={filteredUsers}
        keyExtractor={(item) => item.id}
        renderItem={({ item }) => (
          <TouchableOpacity
            style={styles.userItem}
            onPress={() => handleSelect(item)}
          >
            <View style={styles.avatar}>
              <Text style={styles.avatarText}>
                {item.username.charAt(0).toUpperCase()}
              </Text>
            </View>
            <Text style={styles.username}>{item.username}</Text>
          </TouchableOpacity>
        )}
        ListEmptyComponent={
          <View style={styles.emptyContainer}>
            <Text style={styles.emptyText}>未找到用户</Text>
          </View>
        }
        style={styles.list}
      />
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    position: 'absolute',
    backgroundColor: '#fff',
    borderRadius: 8,
    shadowColor: '#000',
    shadowOffset: { width: 0, height: 2 },
    shadowOpacity: 0.15,
    shadowRadius: 8,
    elevation: 5,
    maxWidth: 250,
    maxHeight: 200,
    zIndex: 1000,
  },
  list: {
    paddingVertical: 4,
  },
  userItem: {
    flexDirection: 'row',
    alignItems: 'center',
    paddingHorizontal: 12,
    paddingVertical: 8,
    gap: 10,
  },
  avatar: {
    width: 32,
    height: 32,
    borderRadius: 16,
    backgroundColor: '#007AFF',
    justifyContent: 'center',
    alignItems: 'center',
  },
  avatarText: {
    color: '#fff',
    fontSize: 14,
    fontWeight: 'bold',
  },
  username: {
    fontSize: 15,
    color: '#333',
  },
  emptyContainer: {
    padding: 16,
    alignItems: 'center',
  },
  emptyText: {
    fontSize: 14,
    color: '#999',
  },
});

3.3 话题标签检测器

typescript 复制代码 
/**
 * 话题标签检测器和高亮器
 */
import React, { useMemo } from 'react';
import { View, Text, StyleSheet } from 'react-native';

interface HashtagHighlighterProps {
  text: string;
  onHashtagPress?: (hashtag: string) => void;
}

export const HashtagHighlighter: React.FC<HashtagHighlighterProps> = ({
  text,
  onHashtagPress,
}) => {
  const parsedText = useMemo(() => {
    // 正则匹配话题标签
    const hashtagRegex = /#[\p{L}\p{N}_]+/gu;
    const parts: Array<{ text: string; isHashtag: boolean; tag?: string }> = [];

    let lastIndex = 0;
    let match;

    while ((match = hashtagRegex.exec(text)) !== null) {
      // 添加匹配前的文本
      if (match.index > lastIndex) {
        parts.push({
          text: text.slice(lastIndex, match.index),
          isHashtag: false,
        });
      }

      // 添加话题标签
      parts.push({
        text: match[0],
        isHashtag: true,
        tag: match[0].slice(1),
      });

      lastIndex = hashtagRegex.lastIndex;
    }

    // 添加剩余文本
    if (lastIndex < text.length) {
      parts.push({
        text: text.slice(lastIndex),
        isHashtag: false,
      });
    }

    return parts;
  }, [text]);

  return (
    <View style={highlightStyles.container}>
      {parsedText.map((part, index) => (
        <Text
          key={index}
          style={part.isHashtag ? highlightStyles.hashtag : highlightStyles.text}
          onPress={() => part.isHashtag && onHashtagPress?.(part.tag!)}
        >
          {part.text}
        </Text>
      ))}
    </View>
  );
};

const highlightStyles = StyleSheet.create({
  container: {
    flexDirection: 'row',
    flexWrap: 'wrap',
  },
  text: {
    color: '#333',
    fontSize: 16,
  },
  hashtag: {
    color: '#007AFF',
    fontSize: 16,
    fontWeight: '500',
  },
});

3.4 使用示例

typescript 复制代码 
/**
 * 富文本编辑器使用示例
 */
import React, { useState } from 'react';
import { View, StyleSheet, ScrollView, Alert } from 'react-native';
import { RichTextEditor, TextFragment } from './RichTextEditor';
import { MentionSuggestion } from './MentionSuggestion';

const RichTextEditorDemo: React.FC = () => {
  const [fragments, setFragments] = useState<TextFragment[]>([]);
  const [mentionVisible, setMentionVisible] = useState(false);
  const [triggerText, setTriggerText] = useState('');
  const [mentionPosition, setMentionPosition] = useState({ x: 0, y: 0 });

  // 模拟用户数据
  const mockUsers = [
    { id: '1', username: '张三' },
    { id: '2', username: '李四' },
    { id: '3', username: '王五' },
    { id: '4', username: '赵六' },
    { id: '5', username: '孙七' },
  ];

  const handleTextChange = (newFragments: TextFragment[]) => {
    setFragments(newFragments);

    // 检测@符号，触发提及建议
    const lastFragment = newFragments[newFragments.length - 1];
    if (lastFragment && lastFragment.content.endsWith('@')) {
      setMentionVisible(true);
      setTriggerText('');
      setMentionPosition({ x: 100, y: 200 });
    }
  };

  const handleSubmit = (submittedFragments: TextFragment[]) => {
    console.log('提交内容:', submittedFragments);
    Alert.alert('提交成功', '内容已准备发送');
  };

  const handleUserSelect = (user: any) => {
    console.log('选择用户:', user);
    // 实际项目中需要将用户信息插入到文本中
  };

  return (
    <View style={demoStyles.container}>
      <ScrollView contentContainerStyle={demoStyles.content}>
        <RichTextEditor
          placeholder="分享你的想法..."
          maxLength={2000}
          minHeight={150}
          maxHeight={300}
          onTextChange={handleTextChange}
          onSubmit={handleSubmit}
          enableMention
          enableHashtag
          enableEmoji
        />

        <MentionSuggestion
          visible={mentionVisible}
          triggerText={triggerText}
          onSelect={handleUserSelect}
          onClose={() => setMentionVisible(false)}
          users={mockUsers}
          position={mentionPosition}
        />
      </ScrollView>
    </View>
  );
};

const demoStyles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#F5F5F5',
  },
  content: {
    padding: 16,
  },
});

export default RichTextEditorDemo;

四、HarmonyOS平台优化

4.1 键盘避让优化

typescript 复制代码 
/**
 * HarmonyOS键盘避让处理
 */
import { Platform, Keyboard } from 'react-native';
import { useFocusEffect } from '@react-navigation/native';

export function useKeyboardAdjustment() {
  useFocusEffect(
    React.useCallback(() => {
      const subscription = Keyboard.addListener('keyboardDidShow', (e) => {
        if (Platform.OS === 'harmony') {
          // HarmonyOS特定处理
          console.log('Keyboard height:', e.endCoordinates.height);
        }
      });

      return () => subscription.remove();
    }, [])
  );
}

4.2 性能优化策略

优化点 实现方式 效果
文本解析 使用useMemo缓存解析结果 减少重复计算
片段合并 合并相邻相同类型片段 减少渲染节点
虚拟化长列表 使用FlatList渲染用户建议 优化大量数据场景
防抖处理 输入变化防抖300ms 减少不必要的渲染

五、总结

本文详细介绍了在HarmonyOS平台上实现富文本编辑器的完整方案，涵盖：

  1. 核心功能：文本格式化、特殊内容插入、光标管理
  2. 高级特性：@提及、话题标签、链接检测
  3. 平台适配：键盘避让、性能优化
  4. 工程实践：模块化设计、可复用组件

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🚀 个人主页 ：有点流鼻涕 · CSDN

💬 座右铭 ： "向光而行，沐光而生。"

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