经过仔细的研究，我发现没有解决这个问题，但有一个黑客的变通办法！
逻辑是每当用户试图选择大小为1到any的文本时，以编程方式将光标设置在端点处。
为类状态中的选择变量添加以下初始化：

constructor(props) {
    super(props);
    this.state = {
      selection: { start: 0, end: 0 },
    };
  }

添加以下helper函数：

handleSelectionChange = (event) => {
    console.log('Selection changed:', event.nativeEvent.selection);
    if (event.nativeEvent.selection.start !== event.nativeEvent.selection.end) { // Checking if cursor's starting and ending point are different, if it is then it implies user selected some text of length 1 or more.
      console.log('text got selected');
      this.setState({ selection: { start: event.nativeEvent.selection.end, end: event.nativeEvent.selection.end } });  //setting cursor at the end point of the text
    }
    else {
      this.setState({ selection: { start: event.nativeEvent.selection.start, end: event.nativeEvent.selection.end } });  //if cursor's starting and ending point are same then leaving it as it is.
    }
  }

在TextInput中添加以下onSelectionChange和selection属性：

<TextInput
  onSelectionChange={this.handleSelectionChange}
  selection={this.state.selection}
/>

然而，这不是一个适当的解决方案，但肯定做的工作！