1、導(dǎo)航器用于頁(yè)面之間的切換，根據(jù)文檔介紹，從0.44版本開(kāi)始，Navigator被從react native的核心組件庫(kù)中剝離到了一個(gè)名為react-native-deprecated-custom-components的單獨(dú)模塊中。如果你需要繼續(xù)使用Navigator，則需要先yarn add react-native-deprecated-custom-components安裝，然后從這個(gè)模塊中import，即import { Navigator } from 'react-native-deprecated-custom-components'.
2、具體使用方法可以看http://bbs.reactnative.cn/topic/20/%E6%96%B0%E6%89%8B%E7%90%86%E8%A7%A3navigator%E7%9A%84%E6%95%99%E7%A8%8B/2，里面包含了頁(yè)面的跳轉(zhuǎn)以及傳參；
3、補(bǔ)充一點(diǎn)，針對(duì)android app開(kāi)發(fā)中經(jīng)常會(huì)在第一個(gè)頁(yè)面雙擊兩下退出應(yīng)用，這個(gè)可以放程序的入口處，避免每個(gè)頁(yè)面都寫(xiě)；

import React, {Component} from 'react';
import {
    Platform,
    BackAndroid,
    ToastAndroid,
} from 'react-native';
import {Navigator} from 'react-native-deprecated-custom-components'
import Splash from './component/SplashComponent'
import hookNavigator from './utils/hookNavigator';

export default class App extends Component {

    render() {
        return (
            <Navigator
                ref={this.onNavigatorRef}
                initialRoute={{id: 'splash', component: Splash}}
                configureScene={this.configureScene}
                renderScene={this.renderScene}
            />
        );
    }
  //這里需要把navigator的引用設(shè)置為全局變量，后面需要使用到該引用
    onNavigatorRef = (ref) => {
        this.navigator = ref;
        if (ref) {
            hookNavigator(ref);
        }
    };
    configureScene(route) {
        // if (route.sceneConfig) { // 有設(shè)置場(chǎng)景
        //     return route.sceneConfig;
        // }
        return Navigator.SceneConfigs.PushFromRight; // 默認(rèn)，右側(cè)彈出
    }

    renderScene(route, navigator) {
        return <route.component {...route.passProps} nav={navigator}/>;
    }

    componentDidMount() {
        if (Platform.OS === 'android') {
            BackAndroid.addEventListener('hardwareBackPress', this.onBackAndroid);
        }
    }

    componentWillUnmount() {
        if (Platform.OS === 'android') {
            BackAndroid.removeEventListener('hardwareBackPress', this.onBackAndroid);
        }
    }

    onBackAndroid = () => {
        let nav = this.navigator;
        const routers = nav.getCurrentRoutes();
        if (routers.length > 1) {
            nav.pop();
            return true;
        }
        let now = new Date().getTime();
        if (now - this.lastClickTime < 2500) {
            //2.5秒內(nèi)點(diǎn)擊后退鍵兩次推出應(yīng)用程序
            return false;//控制權(quán)交給原生
        }
        this.lastClickTime = now;
        ToastAndroid.show('再按一次退出應(yīng)用', ToastAndroid.SHORT);
        return true;
    };
}