React Native商城项目实战03

1.在Home目录下新建首页详细页HomeDetail.js

/**
 * 首页详情页
 */
import React, { Component } from 'react';
import {
    AppRegistry,
    StyleSheet,
    Text,
    View,
    TouchableOpacity
} from 'react-native';

// ES5
var HomeDetail = React.createClass({
    render() {
        return (
            <View style={styles.container}>
                <TouchableOpacity onPress={()=>{this.popToHome()}}>
                    <Text style={styles.welcome}>
                        HomeDetail
                    </Text>
                </TouchableOpacity>
            </View>
        );
    },

    // 返回首页
    popToHome(){
        this.props.navigator.pop();
    }
});

const styles = StyleSheet.create({
    container: {
        flex: 1,
        justifyContent: 'center',
        alignItems: 'center',
        backgroundColor: 'red',
    },
    welcome: {
        fontSize: 20,
        textAlign: 'center',
        margin: 10,
    },
});

// 输出
module.exports = HomeDetail;

2.从Home.js跳转到HomeDetail.js，修改Home.js:

/**
 * 首页
 */
import React, { Component } from 'react';
import {
    AppRegistry,
    StyleSheet,
    Text,
    View,
    TouchableOpacity
} from 'react-native';

/*======导入外部组件类======*/
var HomeDetail = require('./HomeDetail');


// ES5
var Home = React.createClass({
    render() {
        return (
            <View style={styles.container}>
                <TouchableOpacity onPress={()=>{this.pushToDetail()}}>
                    <Text style={styles.welcome}>
                        Home
                    </Text>
                </TouchableOpacity>
            </View>
        );
    },

    // 跳转到首页详细页
    pushToDetail(){
        this.props.navigator.push({
            component:HomeDetail,   // 要跳转过去的组件
            title:'首页详细页'
        });
    }
});

const styles = StyleSheet.create({
    container: {
        flex: 1,
        justifyContent: 'center',
        alignItems: 'center',
        backgroundColor: '#F5FCFF',
    },
    welcome: {
        fontSize: 20,
        textAlign: 'center',
        margin: 10,
    },
});

// 输出
module.exports = Home;

3.在Main.js给首页的tab设置Navigator

/**
 * 主页面
 */
import React, { Component } from 'react';
import {
    AppRegistry,
    StyleSheet,
    Text,
    View,
    Image,
    Platform, // 判断运行平台
} from 'react-native';

/*=============导入外部组件类==============*/
import TabNavigator from 'react-native-tab-navigator';
import CustomerComponents, { Navigator } from 'react-native-deprecated-custom-components';

var Home = require('../Home/Home');
var Shop = require('../Shop/Shop');
var Mine = require('../Mine/Mine');
var More = require('../More/More');

// ES5
var Main = React.createClass({
    // 初始化函数(变量是可以改变的,充当状态机的角色)
    getInitialState(){
        return{
            selectedTab:'home' // 默认选中的tabBar
        }
    },

    render() {
        return (
            <TabNavigator>
                {/*--首页--*/}
                <TabNavigator.Item
                    title="首页"
                    renderIcon={() => <Image source={{uri:'icon_tabbar_homepage'}} style={styles.iconStyle} />}
                    renderSelectedIcon={() => <Image source={{uri:'icon_tabbar_homepage_selected'}} style={styles.selectedIconStyle} />}
                    badgeText="1"
                    selected={this.state.selectedTab === 'home'}
                    onPress={() => this.setState({ selectedTab: 'home' })}
                >
                    <Navigator
                        initialRoute={{name: '首页', component:Home}}
                        renderScene={(route, navigator) =>{
                            let Component = route.component;
                            return <Component {...route.passProps} navigator={navigator} />
                        }}
                    />
                </TabNavigator.Item>
                {/*--商家--*/}
                <TabNavigator.Item
                    title="商家"
                    renderIcon={() => <Image source={{uri:'icon_tabbar_merchant_normal'}} style={styles.iconStyle} />}
                    renderSelectedIcon={() => <Image source={{uri:'icon_tabbar_merchant_selected'}} style={styles.selectedIconStyle} />}
                    badgeText="1"
                    selected={this.state.selectedTab === 'shop'}
                    onPress={() => this.setState({ selectedTab: 'shop' })}
                >
                    <Shop />
                </TabNavigator.Item>
                {/*--我的--*/}
                <TabNavigator.Item
                    title="我的"
                    renderIcon={() => <Image source={{uri:'icon_tabbar_mine'}} style={styles.iconStyle} />}
                    renderSelectedIcon={() => <Image source={{uri:'icon_tabbar_mine_selected'}} style={styles.selectedIconStyle} />}
                    badgeText="1"
                    selected={this.state.selectedTab === 'mine'}
                    onPress={() => this.setState({ selectedTab: 'mine' })}
                >
                    <Mine />
                </TabNavigator.Item>
                {/*--更多--*/}
                <TabNavigator.Item
                    title="更多"
                    renderIcon={() => <Image source={{uri:'icon_tabbar_misc'}} style={styles.iconStyle} />}
                    renderSelectedIcon={() => <Image source={{uri:'icon_tabbar_misc_selected'}} style={styles.selectedIconStyle} />}
                    badgeText="1"
                    onPress={() => this.setState({ selectedTab: 'more' })}
                    selected={this.state.selectedTab === 'more'}
                >
                    <More />
                </TabNavigator.Item>
            </TabNavigator>
        );
    }
});

const styles = StyleSheet.create({
    iconStyle:{
         Platform.OS === 'ios' ? 30 : 25,
        height:Platform.OS === 'ios' ? 30 : 25,
    },
    selectedIconStyle:{
        Platform.OS === 'ios' ? 30 : 25,
        height:Platform.OS === 'ios' ? 30 : 25,
    },
});

// 输出
module.exports = Main;

4.效果图