@td-design/react-native/lib/module/portal/PortalConsumer.js

react-native UI组件库

import React from 'react';
export default class PortalConsumer extends React.Component {
  componentDidMount() {
    this.checkManager();
    this.key = this.props.manager.mount(this.props.children);
  }
  componentDidUpdate() {
    this.props.manager.update(this.key, this.props.children);
  }
  componentWillUnmount() {
    this.props.manager.unmount(this.key);
  }
  checkManager() {
    if (!this.props.manager) {
      throw new Error('你好像忘记用Portal.Provider包裹你的应用了。');
    }
  }
  render() {
    return null;
  }
}
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