有没有办法阻止reactjs状态页显示

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      isLoading: true, // 控制状态页显示与隐藏的状态变量
      data: null
    };
  }

  componentDidMount() {
    // 模拟异步数据加载
    setTimeout(() => {
      this.setState({ isLoading: false, data: 'Some data' });
    }, 2000);
  }

  render() {
    const { isLoading, data } = this.state;

    if (isLoading) {
      return <LoadingPage />; // 显示状态页
    }

    return <DataPage data={data} />; // 显示数据页
  }
}

import { ClipLoader } from 'react-spinners';

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      isLoading: true,
      data: null
    };
  }

  componentDidMount() {
    setTimeout(() => {
      this.setState({ isLoading: false, data: 'Some data' });
    }, 2000);
  }

  render() {
    const { isLoading, data } = this.state;

    if (isLoading) {
      return <ClipLoader size={50} color="#123abc" loading={isLoading} />; // 使用React Spinners库显示加载状态
    }

    return <DataPage data={data} />;
  }
}

class LoadingPage extends React.Component {
  render() {
    return (
      <div>
        <h1>Loading...</h1>
        {/* 可以添加自定义的加载动画或其他内容 */}
      </div>
    );
  }
}

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      isLoading: true,
      data: null
    };
  }

  componentDidMount() {
    setTimeout(() => {
      this.setState({ isLoading: false, data: 'Some data' });
    }, 2000);
  }

  render() {
    const { isLoading, data } = this.state;

    if (isLoading) {
      return <LoadingPage />; // 使用自定义的加载状态组件
    }

    return <DataPage data={data} />;
  }
}