react native -如何将参数从一个组件传递到另一个组件？

// 父组件
import React, { Component } from 'react';
import ChildComponent from './ChildComponent';

class ParentComponent extends Component {
  render() {
    const parameter = 'Hello from parent component';
    return (
      <ChildComponent parameter={parameter} />
    );
  }
}

// 子组件
import React, { Component } from 'react';

class ChildComponent extends Component {
  render() {
    const { parameter } = this.props;
    return (
      <Text>{parameter}</Text>
    );
  }
}

// 创建Context对象
const MyContext = React.createContext();

// 父组件
import React, { Component } from 'react';
import ChildComponent from './ChildComponent';

class ParentComponent extends Component {
  render() {
    const parameter = 'Hello from parent component';
    return (
      <MyContext.Provider value={parameter}>
        <ChildComponent />
      </MyContext.Provider>
    );
  }
}

// 子组件
import React, { Component } from 'react';

class ChildComponent extends Component {
  render() {
    return (
      <MyContext.Consumer>
        {parameter => <Text>{parameter}</Text>}
      </MyContext.Consumer>
    );
  }
}

// 安装Redux和React Redux
npm install redux react-redux

// 创建Redux store
import { createStore } from 'redux';

const initialState = {
  parameter: 'Hello from parent component'
};

function reducer(state = initialState, action) {
  return state;
}

const store = createStore(reducer);

// 父组件
import React, { Component } from 'react';
import { Provider } from 'react-redux';
import ChildComponent from './ChildComponent';

class ParentComponent extends Component {
  render() {
    return (
      <Provider store={store}>
        <ChildComponent />
      </Provider>
    );
  }
}

// 子组件
import React, { Component } from 'react';
import { connect } from 'react-redux';

class ChildComponent extends Component {
  render() {
    const { parameter } = this.props;
    return (
      <Text>{parameter}</Text>
    );
  }
}

const mapStateToProps = state => ({
  parameter: state.parameter
});

export default connect(mapStateToProps)(ChildComponent);