Reactjs 如何将光标移动到行尾？

我正在使用draft.js开发一个富文本编辑器。我希望用户能够在单击斜体按钮后继续键入。在用户禁用斜体按钮之前，应应用内联样式。单击按钮使光标在编辑器外聚焦。我创建了一个ref，在当前ref上调用了

focus（）

函数，然后在

edotorState

上调用了

moveFocusToEnd

。这不符合预期。我如何实现这种行为

ReactJS

import React from 'react';
import { Editor, EditorState, RichUtils } from 'draft-js';
import { Button, Icon } from 'antd';

function MyEditor() {

  const ref = React.useRef(null);

  const [editorState, setEditorState] = React.useState(
    EditorState.createEmpty()
  );

  const handleKeyCommand = command => {
    const newState = RichUtils.handleKeyCommand(editorState, command);

    if (newState) {
      setEditorState(newState)
      return "handled"
    }

    return "not-handled";

  }

  const onItalicClick = event => {
    ref.current.focus()
    EditorState.moveFocusToEnd(editorState)
    setEditorState(RichUtils.toggleInlineStyle(editorState, 'ITALIC'))
  }

  const onUnderLinkClick = event => {
    event.preventDefault()
    setEditorState(RichUtils.toggleInlineStyle(editorState, "UNDERLINE"))
  }

  const onBoldClick = event => {
    event.preventDefault()
    console.log(event)
    setEditorState(RichUtils.toggleInlineStyle(editorState, "BOLD"))
  }

  return <div>
    <div>
      <Button
        onClick={onItalicClick}
      >
        <Icon type="italic" />
      </Button>
      <Button
        onClick={onUnderLinkClick}
      >
        <Icon type="underline" />
      </Button>
      <Button
        onClick={onBoldClick}
      >
        <Icon type="bold" />
      </Button>
    </div>
    <Editor
      editorState={editorState}
      onChange={editorState => setEditorState(editorState)}
      handleKeyCommand={handleKeyCommand}
      ref={ref}
    />
  </div>;

}

export default MyEditor;

.wrapper {
  border: 1px solid #e2e2e2;
  padding: 10px;
  margin-bottom: 20px;
} 

---

在这里，您可以将focusOffset设置为该块的文本长度。

第一条语句获取光标的位置，第二条语句将光标的偏移量设置为5，即5个字符。您必须在块中已经给出文本长度。您是否尝试使用React-Dev工具调试代码？

selectionState = this.state.editorState.getSelection()    
selectionState=selectionState.merge({'forceKey':xxxx, focusOffset:5})