react-native使用react-navigation进行页面跳转导航的示例

首先要确认已经配置好react-native的环境。

# 创建一个native应用，SimpleApp，然后进入项目目录
react-native init SimpleApp
cd SimpleApp

# 通过npm安装最新版本的react-navigation
npm install --save react-navigation

# 运行程序
react-native run-android

引入Stack Navigator

对于我们的应用程序，我们想要使用堆栈式导航器，因为我们想要一个概念的“堆栈”导航，其中每个新屏幕都放在堆栈顶部，然后从堆栈顶部移除一个屏幕。

 import React from 'react';
import {
 AppRegistry,
 Text,
} from 'react-native';
import { StackNavigator } from 'react-navigation';

class HomeScreen extends React.Component {
 static navigationOptions = {
  title: 'Welcome world',
 };
 render() {
  return <Text>Hello, Navigation!</Text>;
 }
}

const SimpleApp = StackNavigator({
 Home: { screen: HomeScreen },
});

AppRegistry.registerComponent('SimpleApp', () => SimpleApp);

屏幕的title在静态导航选项中是可配置的，在这里可以设置许多选项来配置导航器中的屏幕显示。

添加一个新的屏幕

 class ChatScreen extends React.Component {
 static navigationOptions = {
  title: 'Chat with Lucy',
 };
 render() {
  return (
   <View>
    <Text>Chat with Lucy</Text>
   </View>
  );
 }
}

然后在HomeScreen添加一个按钮，链接到ChatScreen

 class HomeScreen extends React.Component {
 static navigationOptions = {
  title: 'Welcome',
 };
 render() {
  const { navigate } = this.props.navigation;
  return (
   <View>
    <Text>Hello, Chat App!</Text>
    <Button
     onPress={() => navigate('Chat')}
     title="Chat with Lucy"
    />
   </View>
  );
 }

最后将添加的两个页面添加到StackNavigator中

 const SimpleApp = StackNavigator({
 Home: { screen: HomeScreen },
 Chat: { screen: ChatScreen },
});

在这里，可以传递参数，从HomeScreen传递

class HomeScreen extends React.Component {
 static navigationOptions = {
  title: 'Welcome',
 };
 render() {
  const { navigate } = this.props.navigation;
  return (
   <View>
    <Text>Hello, Chat App!</Text>
    <Button
     onPress={() => navigate('Chat', { user: 'Lucy' })}
     title="Chat with Lucy"
    />
   </View>
  );
 }
}

ChatScreen接收参数

class ChatScreen extends React.Component {
 // Nav options can be defined as a function of the screen's props:
 static navigationOptions = ({ navigation }) => ({
  title: `Chat with ${navigation.state.params.user}`,
 });
 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>
  );
 }
}

添加第三个页面，Three.js， ChatScreen跳转到Three

 import React,{Component} from 'react';
import {
 AppRegistry,
 Text,
 View,
 Button,
} from 'react-native';

class Three extends React.Component {
 static navigationOptions = {
  title: 'Three Sceen',
 };
 render() {
  const { goBack } = this.props.navigation;
  return (
   <Button
    title="Go back"
    onPress={() => goBack()}
   />
  );
 }
}
export default Three;

修改ChatScreen的配置

class ChatScreen
extends React.Component {

static navigationOptions = {

title: 'Chat with Lucy',

};

render() {

const { navigate } =
this.props.navigation;

return (

<View>

<Text>Chat with Lucy</Text>

<Button

onPress={() =>
navigate('Three')}

title="to to ThreeScreen"

/>

</View>

);

}

}

最后的结果如下：

最后给出完整代码

文件 index.android.js

import SimpleApp
from './App';

文件App.js

import React
from 'react';

import {

AppRegistry,

Text,

View,

Button,

} from 'react-native';

import { StackNavigator }
from 'react-navigation';

import ThreeScreen
from './Three.js';

class HomeScreen
extends React.Component {

static navigationOptions = {

title: 'Welcome',

};

render() {

const { navigate } =
this.props.navigation;

return (

<View>

<Text>Hello, Chat App!</Text>

<Button

onPress={() =>
navigate('Chat')}

title="Chat with Lucy"

/>

</View>

);

}

}

class ChatScreen
extends React.Component {

static navigationOptions = {

title: 'Chat with Lucy',

};

render() {

const { navigate } =
this.props.navigation;

return (

<View>

<Text>Chat with Lucy</Text>

<Button

onPress={() =>
navigate('Three')}

title="to to ThreeScreen"

/>

</View>

);

}

}

const SimpleApp =
StackNavigator({

Home: { screen:
HomeScreen },

Chat: { screen:
ChatScreen },

Three: { screen:
ThreeScreen},

});

AppRegistry.registerComponent('SimpleApp', ()
=> SimpleApp);

文件Three.js

import React,{Component}
from 'react';

import {

AppRegistry,

Text,

View,

Button,

} from 'react-native';

class Three
extends React.Component {

static navigationOptions = {

title: 'Three Sceen',

};

render() {

const { goBack } =
this.props.navigation;

return (

<Button

title="Go back"

onPress={() =>
goBack()}

/>

);

}

}

export default
Three;

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