时间:2021-07-01 10:21:17 帮助过:44人阅读
一、主要构成
按使用形式主要分三部分:
StackNavigator: 类似于普通的Navigator,屏幕上方导航栏
TabNavigator: 相当于ios里面的TabBarController,屏幕下方的标签栏
DrawerNavigator: 抽屉效果,侧边滑出
二、使用
1.新建项目
react-native init ComponentDemo
2. 在应用中安装此库
npm install --save react-navigation
安装完发现是beta版本(v1.0.0-beta.7) ,竟然有坑?!一会儿我们会详细说这个坑~
3.测试TabNavigator、StackNavigator和DrawerNavigator
(1)新建HomePage.js
import React from 'react'; import { StyleSheet, View, Text, Button, Image } from 'react-native'; import { StackNavigator, TabNavigator } from 'react-navigation'; import ChatScreen from './ChatScreen'; import MinePage from './MinePage'; class HomePage extends React.Component{ static navigationOptions={ title: '首页',//设置标题内容 header:{ backTitle: ' ',//返回按钮标题内容(默认为上一级标题内容) } } constructor(props) { super(props); } render() { const {navigate} = this.props.navigation; return ( <View style={styles.container}> <Text style={{padding:10}}>Hello, Navigation!</Text> <Button onPress={() => navigate('Chat',{user:'Sybil'})} title="点击跳转"/> </View> ) } } const MainScreenNavigator = TabNavigator({ Home: { screen: HomePage, navigationOptions: { tabBar: { label: '首页', icon: ({tintColor}) => ( <Image source={require('./image/bar_home_nomarl@3x.png')} style={[{tintColor: tintColor},styles.icon]} /> ), }, } }, Certificate: { screen: MinePage, navigationOptions: { tabBar: { label: '我的', icon: ({tintColor}) => ( <Image source={require('./image/bar_center_normal@3x.png')} style={[{tintColor: tintColor},styles.icon]} /> ), }, } }, }, { animationEnabled: false, // 切换页面时不显示动画 tabBarPosition: 'bottom', // 显示在底端,android 默认是显示在页面顶端的 swipeEnabled: false, // 禁止左右滑动 backBehavior: 'none', // 按 back 键是否跳转到第一个 Tab, none 为不跳转 tabBarOptions: { activeTintColor: '#008AC9', // 文字和图片选中颜色 inactiveTintColor: '#999', // 文字和图片默认颜色 showIcon: true, // android 默认不显示 icon, 需要设置为 true 才会显示 indicatorStyle: {height: 0}, // android 中TabBar下面会显示一条线,高度设为 0 后就不显示线了 style: { backgroundColor: '#fff', // TabBar 背景色 }, labelStyle: { fontSize: 12, // 文字大小 }, }, }); const styles = StyleSheet.create({ container:{ flex: 1, backgroundColor:'#fff' }, icon: { height: 22, width: 22, resizeMode: 'contain' } }); const SimpleApp = StackNavigator({ Home: {screen: MainScreenNavigator}, Chat:{screen:ChatScreen}, }); export default SimpleApp;
(2)新建ChatScreen.js
import React from 'react'; import { Button, Image, View, Text } from 'react-native'; class ChatScreen extends React.Component { static navigationOptions = { title:'聊天', }; render() { const {params} = this.props.navigation.state; return ( <View style={{backgroundColor:'#fff',flex:1}}> <Text style={{padding:20}}>Chat with {params.user}</Text> </View> ); } } export default ChatScreen;
(3)新建MinePage.js
import React,{Component} from 'react'; import { Button, Image, View, Text, StyleSheet } from 'react-native'; import { DrawerNavigator } from 'react-navigation'; import MyNotificationsScreen from './MyNotificationsScreen'; class MinePage extends Component{ static navigationOptions = { title:'我的', drawerLabel: '我的', // Note: By default the icon is only shown on iOS. Search the showIcon option below. drawerIcon: ({ tintColor }) => ( <Image source={require('./image/chat@3x.png')} style={[styles.icon, {tintColor: tintColor}]} /> ), }; render(){; return( <View style={{backgroundColor:'#fff',flex:1}}> <Text style={{padding:20}}>Sybil</Text> <Button style={{padding:20}} onPress={() => this.props.navigation.navigate('DrawerOpen')} title="点击打开侧滑菜单" /> </View> ); } } const styles = StyleSheet.create({ icon: { width: 24, height: 24, }, }); const MyChatNavigator = DrawerNavigator({ MyChat: { screen: MinePage, }, Notifications: { screen: MyNotificationsScreen, }, },{ drawerWidth: 220, // 抽屉宽 drawerPosition: 'left', // 抽屉在左边还是右边 // contentComponent: CustomDrawerContentComponent, // 自定义抽屉组件 contentOptions: { initialRouteName: MinePage, // 默认页面组件 activeTintColor: '#008AC9', // 选中文字颜色 activeBackgroundColor: '#f5f5f5', // 选中背景颜色 inactiveTintColor: '#000', // 未选中文字颜色 inactiveBackgroundColor: '#fff', // 未选中背景颜色 style: { // 样式 } } }); export default MyChatNavigator;
(4)编写MyNotificationsScreen.js
import React from 'react'; import { StyleSheet, View, Text, Button, Image } from 'react-native'; class MyNotificationsScreen extends React.Component { static navigationOptions = { title:'通知', drawerLabel: '通知', drawerIcon: ({ tintColor }) => ( <Image source={require('./image/notif@3x.png')} style={[styles.tabIcon, {tintColor: tintColor}]} /> ), }; render() { return ( <View style={{backgroundColor:'#fff'}}> <Button style={{padding:20}} onPress={() => this.props.navigation.navigate('DrawerOpen')} title="点击打开侧滑菜单" /> <Button onPress={() => this.props.navigation.goBack()} title="返回我的界面" /> </View> ); } } const styles = StyleSheet.create({ tabIcon: { width: 24, height: 24, }, }); export default MyNotificationsScreen;
(5)运行
报错啦?这就是上面我们所说的坑~
什么原因呢?原来是测试版的bug,在目录中找到node_modules/react-navigation/src/views/Header.js的第12行,删除它就OK了~
Ps:遗憾的是这个错误我没有留图啊~在我即将发表这篇文章的时候,最新版已经变为(v1.0.0-beta.9)了,最新版已经将上述的bug修改了!
好了,再次运行~
上一个动态效果图:
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