Girl.js

import React,{ Component } from 'react';
import {
  View,
  Text,
  StyleSheet
} from 'react-native';

export default class Girl extends Component{
  constructor(props) {
    super(props);
    this.state = {
      
    }
  }
  render() {
    return (
      <View style={styles.container}>
        <Text style={styles.text}>
          im a girl.
        </Text>
        <Text style={styles.text}>
          我收到了男孩送的：{this.props.word}
        </Text>
        <Text style={styles.text}
          onPress={() => {
            this.props.onCallBack('一盒巧克力');
            this.props.navigator.pop();
          }}>
          回赠巧克力
        </Text>
      </View>
    ) 
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: 'gray',
    justifyContent: 'center'
  },
  text: {
    fontSize: 20
  }
})