react-native react-navigation 的使用

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react-native react-navigation 导航器的使用

1.基本使用

1.入口文件

// App.js
import {AppStackNavigator} from './navigations/AppNavigation'
export default AppStackNavigator

2.配置文件

// AppNavigation.js
import React from 'react'
import {StackNavigator} from 'react-navigation'
import HomePage from '../pages/HomePage'
import Page1 from '../pages/Page1'
import Page2 from '../pages/Page2'
import Page3 from '../pages/Page3'

export const AppStackNavigator = StackNavigator({
    HomePage: {
        screen: HomePage
    },
    Page1: {
        screen: Page1
    },
    Page2: {
        screen: Page2
    },
    Page3: {
        screen: Page3
    }
})

3.目录

// HomePage.js
export default class HomePage extends Component {
    render() {
        const {navigation} = this.props
        return (
                <View style={styles.container}>
                    <Text style={styles.welcome}>
                        欢迎来到HomePage
                    </Text>
                    <Button
                        title='Go to Page1'
                        onPress={() => {
                            navigation.navigate('Page1')
                        }}
                    />
                    <Button
                        title='Go to Page2'
                        onPress={() => {
                            navigation.navigate('Page2')
                        }}
                    />
                    <Button
                        title='Go to Page3'
                        onPress={() => {
                            navigation.navigate('Page3')
                        }}
                    />
                </View>
        );
    }
}

2.配置navigationOptions的几种方式

2.1 全局静态配置

// AppNavigation.js
StackNavigator({
    HomePage: {
        screen: HomePage
    },
    Page1: {
        screen: Page1
    }
  },{
    navigationOptions: {
        header: null
    }
})

2.2 局部静态配置

// AppNavigation.js
StackNavigator({
    HomePage: {
        screen: HomePage,
    navigationOptions: {
            header: null
        }
    },
    Page1: {
        screen: Page1
    }
})

2.3 静态配置-直接分配

// HomePage.js
export default class HomePage extends Component {
    static navigationOptions = {
        title: 'Home',
        headerBackTitle: 'HaHa'
    }
    render() {
        return (
            <View style={styles.container}></View>
        );
    }
}

2.4 动态配置

// HomePage.js
export default class HomePage extends Component {
    render() {
        const {navigation} = this.props
        return (
                <View style={styles.container}>
                    <Text style={styles.welcome}>
                        欢迎来到HomePage
                    </Text>
                    <Button
                        title='Go to Page3'
                        onPress={() => {
                            navigation.navigate('Page3', {name: '动态的'})
                        }}
                    />
                </View>
        );
    }
}

// AppNavigation.js
StackNavigator({
    HomePage: {
        screen: HomePage
    },
    Page3: {
        screen: Page3,
        navigationOptions: ({navigation}) => ({
            title: `${navigation.state.params.name}Page3`
        })
  }
})

3 setParams的使用,导航器与页面的通信

// Page4.js
export default class Page4 extends Component {
    render () {
        const {navigation} = this.props
        const {state, setParams} = navigation
        const {params} = state
        const showText = params.mode === 'edit' ? '正在编辑' : '编辑完成'
        return (
                <View style={styles.container}>
                    <Text style={styles.welcome}>
                        Page4
                    </Text>
                    <Button
            title='Go Back'
            onPress={() => {
              navigation.goBack()
            }}
                    />
                    <Text>{showText}</Text>
                    <TextInput style={styles.textInput}
            onChangeText={text => {
              setParams({
                title: text
              })
            }}
                    />
                </View>
        )
    }
}

// AppNavigation.js
export const AppStackNavigator = StackNavigator({
    HomePage: {
        screen: HomePage
    },
    Page4: {
        screen: Page4,
        navigationOptions: (props) => {
            const {navigation} = props
            const {state, setParams} = navigation
            const {params} = state
            return {
                title: params.title ? params.title : 'This is Page4',
                headerRight: (
          <Button
            title={params.mode === 'edit' ? '保存' : '编辑'}
            onPress={() => {
              setParams({
                mode: params.mode === 'edit' ? '' : 'edit'
              })
            }}
          />
                )
            }
        }
    }
})