我有HomePage.js
只有一个按钮,登录按钮,点击后我想渲染LoginPage.js
。我尝试过类似的东西,但它不起作用:
HomePage.js
:
import React, { Component } from 'react';
import { View, Text, TouchableOpacity } from 'react-native';
import LoginPage from './LoginPage';
class HomePage extends Component{
constructor () {
super();
this.state = {LoginPage:false};
}
showLogin = () => {
this.setState({LoginPage:true});
}
render() {
return(
<View>
<TouchableOpacity onPress={() => this.showLogin()}>
<Text>LogIn</Text>
</TouchableOpacity>
</View>
)
}
}
export default HomePage;
在React中,使用react-router
轻松完成,但我不知道如何使用React-Native。
EDIT 1
之后 react-navigation
我收到以下错误:Route 'navigationOptions' should declare a screen
。我错过了什么吗?
App.js
:
import React, {Component} from 'react';
import {StackNavigator} from 'react-navigation';
import HomePage from './HomePage';
import LoginPage from './LoginPage';
const App = StackNavigator({
Home: {screen: HomePage},
LoginPage: {screen: LoginPage},
navigationOptions: {
header: () => null,
}
});
export default App;
HomePage.js
import React, { Component } from 'react';
import { View, Text, TouchableOpacity } from 'react-native';
import LoginPage from './LoginPage';
class HomePage extends Component{
static navigationOptions = {
title: 'Welcome',
};
render() {
const { navigate } = this.props.navigation;
return(
<View>
<TouchableOpacity onPress={() => navigate('LoginPage'), { name: 'Login' }}>
<Text>Login</Text>
</TouchableOpacity>
<Button
onPress={() => navigate('LoginPage'), { name: 'Login' }}
>Log In</Button>
</View>
)
}
}
export default HomePage;
LoginPage.js
import React, { Component } from 'react';
import { Text, View } from 'react-native';
class LoginPage extends Component {
static navigationOptions = ({navigation}) => ({
title: navigation.state.params.name,
});
render() {
return (
<View>
<Text>This is login page</Text>
</View>
);
}
}
export default LoginPage;
答案 0 :(得分:1)
使用React Navigation。它是现在最好和最简单的解决方案。
用于添加库使用npm install --save react-navigation
您可以使用StackNavigator为下面的路由定义类。
import {
StackNavigator,
} from 'react-navigation';
const BasicApp = StackNavigator({
Main: {screen: MainScreen},
Profile: {screen: ProfileScreen},
, {
headerMode: 'none',
}
});
然后你可以定义类似你在问题中提到的类。 例如:
class MainScreen extends React.Component {
static navigationOptions = {
title: 'Welcome',
};
render() {
const { navigate } = this.props.navigation;
return (
<Button
title="Go to Jane's profile"
onPress={() =>
navigate('Profile', { name: 'Jane' })
}
/>
);
}
}
和第二课
class ProfileScreen extends React.Component {
static navigationOptions = ({navigation}) => ({
title: navigation.state.params.name,
});
render() {
const { goBack } = this.props.navigation;
return (
<Button
title="Go back"
onPress={() => goBack()}
/>
);
}
}
导航功能可用于导航到类,goBack可用于返回屏幕。
对于隐藏标题,您可以使用标题模式或在每个屏幕中指定导航选项
答案 1 :(得分:0)
如果您只是想在{Reid Native>上使用react-router
这样的插件,可以使用react-native-router-flux
,此处可用:https://github.com/aksonov/react-native-router-flux。
此外,如果你只是在那里放置对函数的引用而不是调用它,它会更好。类似的东西:
<TouchableOpacity onPress={this.showLogin}>...</TouchableOpacity>