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

 更新时间:2017年09月07日 11:13:25   作者:新兰永恒K   我要评论
本篇文章主要介绍了react-native使用react-navigation进行页面跳转导航的示例,具有一定的参考价值,有兴趣的可以了解一下

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;

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持澳门金沙网上娱乐。

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