React Navigation基本用法 - qrcode

/**
 * Created by apple on 2018/9/23.
 */
import React, { Component } from \'react\';
import {AppRegistry, View, Text,Button } from \'react-native\';
import { StackNavigator } from \'react-navigation\';

const HomeScreen = ({navigation}) => (
  <View style={{ flex: 1, alignItems: \'center\', justifyContent: \'center\' }}>
    <Text>Home Screen</Text>
      <Button title="Go to details" onPress={()=>navigation.navigate(\'Details\')}/>
  </View>
);

const DetailsScreen = () => (
  <View style={{ flex: 1, alignItems: \'center\', justifyContent: \'center\' }}>
    <Text>Details Screen</Text>
  </View>
);


const RootNavigator = StackNavigator({
Home:{
    screen:HomeScreen,
    navigationOptions:{
        headerTitle:\'Home\',
    },
},
Details:{
    screen:DetailsScreen,
    navigationOptions:{
        headerTitle:\'Details\',
    },
},
});
export default class qrHello extends Component {

  render() {
    return(
        <RootNavigator/>
    );
  }
}
AppRegistry.registerComponent(\'qrHello\', () => qrHello);