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                ??一站式輕松地調用各大LLM模型接口,支持GPT4、智譜、豆包、星火、月之暗面及文生圖、文生視頻 廣告
                文檔屬于翻譯官網英文 文檔。想要看原文,請https://reactnavigation.org/docs/intro/ [TOC] ### # **1. 安裝** **NPM下安裝** `npm install --save react-navigation` **Yarn安裝** `yarn add react-navigation` 以下是nmp下創建一個項目,并且安裝啟動手機調試: ~~~ # Create a new React Native App react-native init SimpleApp cd SimpleApp # Install the latest version of react-navigation from npm npm install --save react-navigation # Run the new app react-native run-android # or: react-native run-ios ~~~ 當安裝啟動成功后。 頁面會顯示:`welcome react-native` > 在當前目錄下,創建app.js。并且用import './App';. 來導入它。同時將index.ios.js和 index.android.js里面的內容清除掉。顯示內容放在app.js > 這樣就可以顯示一個只有導入,導出的一個清爽首頁了。 * * * * * ### # **2. 引入堆棧導航器** 迫不及待的想要體驗堆棧導航器了吧,何不現在我們就開始! 1.在跟index.android.js同目錄下創建app.js 2.在index.android.js中代碼如下: ~~~ import React, { Component } from 'react'; import { AppRegistry, StyleSheet, Text, View, Button } from 'react-native'; import { StackNavigator } from 'react-navigation'; import { ChatScreen,HelloScreen } from './app'; class HomeScreen extends Component { static navigationOptions = { title: 'Home', }; render() { const { navigate } = this.props.navigation; return ( <View> <Text>Hello, Chat App!代碼控制臺</Text> <Button onPress={() => navigate('Chat')} title="Go Chat" /> </View> ); } } const SimpleApp = StackNavigator({ Home: { screen: HomeScreen }, Chat: { screen: ChatScreen }, }); AppRegistry.registerComponent('tang', () => SimpleApp); ~~~ ### # **3.app.js頁面代碼如下:** ~~~ import React, { Component } from 'react'; import { AppRegistry, StyleSheet, Text, View, Button } from 'react-native'; export class ChatScreen extends Component { static navigationOptions = { title: 'Chat', }; render() { return ( <View> <Text>Chat with Lucy</Text> </View> ); } } ~~~ 插入數據線,打開cmd命令進入應用所在根目錄。 運行命令: `react-native run-android` 等在手機安裝完畢后,就可以看見運行結果了。 ### #**4 .傳遞參數** 場景:頭部導航組件樣式都一樣,文字內容不一樣,應該怎么實現。 要實現導航器之間的傳遞參數就應該在上一級頁面導航器中定義 一個參數,然后在子頁面或者下級頁面接收完成傳遞。 1.我們更改index.android.js中的Button ~~~ <Button onPress={() => navigate('Chat', { user: 'Lucy' })} title="Chat with Lucy" /> ~~~ 通過navigate中傳遞一個數組來實現傳值。 2.app.js中獲取傳值。 ~~~ render() { // The screen's current route is passed in to `props.navigation.state`: const { params } = this.props.navigation.state; return ( <View> <Text>Chat with {params.user}</Text> </View> ); } ~~~ ### #**5 .擴展閱讀:** props(屬性) http://reactnative.cn/docs/0.47/props.html#content state(狀態) http://reactnative.cn/docs/0.47/state.html#content
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