react native学习笔记10——react-navigation的嵌套使用
前面介绍了react-navigation的StackNavigator、TabNavigator、DrawerNavigator 的基本使用方法,在实际项目中通常需要嵌套这几种导航方式。下面介绍这几种导航方式的嵌套使用方法。 1.StackNavigator与TabNavigator的嵌套使用StackNavigator与TabNavigator嵌套的App有很多,例如淘宝、京东等,下部选项卡导航,页面中的按钮点击会跳转到二级页面,有的甚至有三级四级页面。 import React from 'react';
import {
AppRegistry,Text,View,Button,StyleSheet,Image,} from 'react-native';
import SecondScreen from "./SecondScreen";
import { TabNavigator } from "react-navigation";
class TabMainScreen extends React.Component {
static navigationOptions = {
tabBarLabel: 'Home',// Note: By default the icon is only shown on iOS. Search the showIcon option below.
tabBarIcon: ({ tintColor }) => (
<Image source={require('../../images/color_for_danmu_normal.png')} style={[styles.icon, {tintColor: tintColor}]} /> ),}; render() { return ( <Button onPress={() => this.props.navigation.navigate('Second')} title="Go to Second" /> ); } } const styles = StyleSheet.create({ icon: { width: 26,height: 26,},}); const TabMainScreenNavigator = TabNavigator( { Main: { screen: TabMainScreen },Second: { screen: SecondScreen },{ tabBarPosition: 'bottom',animationEnabled: true,tabBarOptions: { activeTintColor: '#e91e63',showIcon:'true' },} ); export default TabMainScreenNavigator;
然后是第二个tab页SecondScreen.js import React from 'react';
import {
AppRegistry,} from 'react-native';
import { StackNavigator } from 'react-navigation';
export default class SecondScreen extends React.Component {
static navigationOptions = {
tabBarLabel: 'Second',tabBarIcon: ({ tintColor }) => (
<Image source={require('../../images/face_unpress.png')} style={[styles.icon,}; render() { return ( <Button onPress={() => this.props.navigation.goBack()} title="Go back home" /> ); } } const styles = StyleSheet.create({ icon: { width: 26,});
这样有如下效果 嵌套StackNavigator import React,{ Component } from 'react';
import {
AppRegistry,} from 'react-native';
import { StackNavigator } from 'react-navigation';
import ThirdScreen from "./ThirdScreen";
import TabMainScreen from "./TabMainScreen";
const MyStackNavigation = StackNavigator({
Main: { screen: TabMainScreen },Third: { screen: ThirdScreen },});
export default MyStackNavigation;
修改之前的TabMainScreen.js static navigationOptions = {
tabBarLabel: 'Home',headerTitle:'Main',tabBarIcon: ({ tintColor }) => (
<Image source={require('../../images/color_for_danmu_normal.png')} style={[styles.icon,};
主界面中添加一个跳转到第三个页面的按钮。render函数中返回View改为: render() {
return (
<View style={{ backgroundColor: "#fff",flex: 1,padding: 20}}> <Button onPress={() => this.props.navigation.navigate('Third',{ user: 'Lucy' })} title="Go to Third" /> <View style={{ backgroundColor: "#fff",height: 20}}/> <Button onPress={() => this.props.navigation.navigate('Second')} title="Go to Second" /> </View> ); }
再新建第三个页面ThirdScreen,在同一目录下新建ThirdScreen.js。 import React,{Component} from "react";
import {StyleSheet,Text } from "react-native";
export default class ThirdScreen extends React.Component {
static navigationOptions = ({ navigation }) => {
const {state,setParams} = navigation;
const isInfo = state.params.mode === 'info';
const {user} = state.params;
return {
title: isInfo ? `${user}'s Contact Info` : `Chat with ${state.params.user}`,}; }; render() { return <Text>I am the third Screen</Text> } }
这样就完成了StackNavigator与TabNavigator的嵌套,在要引用的父组件中引用MyStackNavigation即可,例如我的Demo中,入口是App.js,在App.js引用: import React,} from 'react-native';
import MyStackNavigation from "./src/05_navigation/nestingnavigators/MyStackNavigation";
export default class ExerciseProject extends Component {
render() {
return (
<MyStackNavigation /> ); } } AppRegistry.registerComponent('ExerciseProject',() => ExerciseProject);
效果如下: 源码在这里 2.DrawerNavigator、StackNavigator与TabNavigator的三层嵌套它们的嵌套关系为:DrawerNavigator>StackNavigator>TabNavigator。 在上面代码的基础上,新建MyDrawerNavigation.js,设置抽屉导航的首页Home为MyStackNavigation,第二个菜单栏DrawerSecond为DrawerSecondScreen。 import React from 'react';
import {
AppRegistry,} from 'react-native';
import TabMainScreen from "./TabMainScreen";
import DrawerSecondScreen from "./DrawerSecondScreen";
import MyStackNavigation from "./MyStackNavigation";
import { DrawerNavigator } from "react-navigation";
const MyDrawerNavigation = DrawerNavigator(
{
Home: {
screen: MyStackNavigation,navigationOptions: {
drawerLabel: 'Home',drawerIcon: ({ tintColor }) => (
<Image source={require('../../images/color_for_danmu_normal.png')} style={{tintColor: tintColor,width: 24,height: 24,}} /> ),DrawerSecond: { screen: DrawerSecondScreen,navigationOptions: { drawerLabel: 'DrawerSecond',drawerIcon: ({ tintColor }) => ( <Image source={require('../../images/face_unpress.png')} style={ {tintColor: tintColor,} ); export default MyDrawerNavigation;
新建侧滑栏导航栏的第二页DrawerSecondScreen.js import React from 'react';
import {
Button,} from 'react-native';
import { StackNavigator } from 'react-navigation';
export default class DrawerSecondScreen extends React.Component {
render() {
return (
<View style={{ backgroundColor: "#fff",padding: 20}}> <Button onPress={() => this.props.navigation.goBack()} title="Go back home" /> </View> ); } }
效果如下: this.props.navigation.navigate('DrawerOpen');
修改MyStackNavigation.js,在StackNavigator添加navigationOptions的设置,加上标题栏左侧按钮headerLeft,并顺便将标题居中。MyStackNavigation.js修改后的代码为: import React,} from 'react-native';
import { StackNavigator } from 'react-navigation';
import ThirdScreen from "./ThirdScreen";
import TabMainScreen from "./TabMainScreen";
const MyStackNavigation = StackNavigator({
Main: {
screen: TabMainScreen,navigationOptions:({ navigation }) => ({
headerTitleStyle:{
alignSelf:'center',headerLeft: (
<Button title='Menu' onPress={() => navigation.navigate('DrawerOpen')} /> ),}),Third: { screen: ThirdScreen,navigationOptions:({ navigation }) => ({ headerTitleStyle:{ alignSelf:'center',headerLeft: ( <Button title='Menu' onPress={() => navigation.navigate('DrawerOpen')} /> ),}); export default MyStackNavigation;
这样通过点击标题栏左侧的Menu按钮,即可打开侧滑栏了: 示例的源码在这里 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |