反应路由器本机渲染链接组件超过前一个
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当我链接到一个组件时,它会呈现现有组件。它不“导航”,视图不会被链接的视图替换。
App.js:
import React, { Component } from 'react'
import {
Text,
TextInput,
View,
AppRegistry,
TouchableHighlight,
Image,
TouchableOpacity,
} from 'react-native'
import styles from './LoginStyleSheet';
import CircleCheckBox , {LABEL_POSITION} from 'react-native-circle-checkbox';
import SocialFooter from './SocialFooter';
import { NativeRouter, Route, Link, Redirect, withRouter } from 'react-router-native'
import TelUtiles from './TelUtiles';
//const { navigation } = this.props;
//const resp = navigation.getParam('resp', 'NO-resp');
const AuthExample = () => (
<NativeRouter>
<View style={styles.container}>
<View style={styles.container_logo}>
<Image source={require('./img/logo-main.png')} style={styles.logo_img} />
</View>
<View style={styles.welcomeMsg}>
<Text
style={styles.welcomeMsg_textTop}>
¡Bienvenido a nuestra
</Text>
<Text
style={styles.welcomeMsg_textBottom}>
familia mascotera!
</Text>
<View style={styles.container_input_dni}>
<TextInput placeholder='DNI:' placeholderTextColor="#E3A141" underlineColorandroid="#E3A141" style={styles.input_dni} />
</View>
<Link
to="/protected"
style={styles.navItem_login}
underlayColor='#f0f4f7'>
<Text style={styles.navItem_login_text}>Protected Page</Text>
</Link>
</View>
<AuthButton/>
<View style={styles.nav}>
<Link
to="/public"
style={styles.navItem}
underlayColor='#f0f4f7'>
<Text>Public Page</Text>
</Link>
<Link
to="/protected"
style={styles.navItem}
underlayColor='#f0f4f7'>
<Text>Protected Page</Text>
</Link>
<Link
to="/TelUtiles"
style={styles.navItem_login}
underlayColor='#f0f4f7'>
<Image source={require('./img/icono-tel.png')} style={{width:70, height:70,margin:10}} />
</Link>
</View>
<Route path="/public" component={Public}/>
<Route path="/login" component={Login}/>
<Route path="/TelUtiles" component={TelUtiles}/>
<PrivateRoute path="/protected" component={Protected}/>
</View>
</NativeRouter>
)
const fakeAuth = {
isAuthenticated: false,
authenticate(cb) {
this.isAuthenticated = true
setTimeout(cb, 100) // fake async
},
signout(cb) {
this.isAuthenticated = false
setTimeout(cb, 100)
}
}
const AuthButton = withRouter(({ history }) => (
fakeAuth.isAuthenticated ? (
<View>
<Text>Welcome!</Text>
<TouchableHighlight style={styles.btn} underlayColor='#f0f4f7' onPress={() => {
fakeAuth.signout(() => history.push('/'))
}}><Text>Sign out</Text></TouchableHighlight>
</View>
) : (
<Text>You are not logged in.</Text>
)
))
const PrivateRoute = ({ component: Component, ...rest }) => (
<Route {...rest} render={props => (
fakeAuth.isAuthenticated ? (
<Component {...props}/>
) : (
<Redirect to={{
pathname: '/login',
state: { from: props.location }
}}/>
)
)}/>
)
const Public = () => <Text style={styles.header}>Public</Text>
const Protected = () => <Text style={styles.header}>Protected</Text>
class Login extends Component {
state = {
redirectToReferrer: false
}
login = () => {
fakeAuth.authenticate(() => {
this.setState({ redirectToReferrer: true })
})
}
render() {
const { from } = this.props.location.state || { from: { pathname: '/' } }
const { redirectToReferrer } = this.state
if (redirectToReferrer) {
return (
<Redirect to={from}/>
)
}
return (
<View>
<Text>You must log in to view the page at {from.pathname}</Text>
<TouchableHighlight style={styles.btn} underlayColor='#f0f4f7' onPress={this.login}>
<Text>Log in</Text>
</TouchableHighlight>
</View>
)
}
}
export default AuthExample
答案
如果你只想在某个路径上渲染AuthExample
的内容,你可以将它分解为一个单独的组件并在索引路径/
上渲染它,并使用Switch
组件来确保只有一个Route
组件Switch
立即使用。
例
const Main = () => (
<View>
<View style={styles.welcomeMsg}>
<Text style={styles.welcomeMsg_textTop}>¡Bienvenido a nuestra</Text>
<Text style={styles.welcomeMsg_textBottom}>familia mascotera!</Text>
<View style={styles.container_input_dni}>
<TextInput
placeholder="DNI:"
placeholderTextColor="#E3A141"
underlineColorAndroid="#E3A141"
style={styles.input_dni}
/>
</View>
<Link
to="/protected"
style={styles.navItem_login}
underlayColor="#f0f4f7"
>
<Text style={styles.navItem_login_text}>Protected Page</Text>
</Link>
</View>
<AuthButton />
<View style={styles.nav}>
<Link to="/public" style={styles.navItem} underlayColor="#f0f4f7">
<Text>Public Page</Text>
</Link>
<Link to="/protected" style={styles.navItem} underlayColor="#f0f4f7">
<Text>Protected Page</Text>
</Link>
<Link
to="/TelUtiles"
style={styles.navItem_login}
underlayColor="#f0f4f7"
>
<Image
source={require("./img/icono-tel.png")}
style={{ width: 70, height: 70, margin: 10 }}
/>
</Link>
</View>
</View>
);
const AuthExample = () => (
<NativeRouter>
<View style={styles.container}>
<View style={styles.container_logo}>
<Image
source={require("./img/logo-main.png")}
style={styles.logo_img}
/>
</View>
<Switch>
<Route exact path="/" component={Main} />
<Route path="/public" component={Public} />
<Route path="/login" component={Login} />
<Route path="/TelUtiles" component={TelUtiles} />
<PrivateRoute path="/protected" component={Protected} />
</Switch>
</View>
</NativeRouter>
);
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