如何在react-native-pell-react编辑器中使用RichEditor工具栏的图标映射？

npm install react-native-pell-rich-editor --save

import { RichEditor, RichToolbar } from 'react-native-pell-rich-editor';

render() {
  return (
    <View style={styles.container}>
      <RichToolbar
        editor={this.richText}
        selectedIconTint={'#2095F2'}
        disabledIconTint={'#bfbfbf'}
        onPressAddImage={this.onPressAddImage}
      />
      <RichEditor
        ref={(r) => this.richText = r}
        style={styles.editor}
        placeholder={'请输入内容'}
        onChange={this.onChange}
      />
    </View>
  );
}

onPressAddImage = () => {
  // 在这里实现添加图片的逻辑
}