。我做了狀態組件和router.js文件。模擬器給我錯誤不能找到變量我不知道是什麼問題,但即時獲取模擬器中的這個錯誤。 不能找到原生的變量React-native
這裏是我的代碼
import React, { Component } from 'react';
import {
AppRegistry,
StyleSheet,
Text,
View
} from 'react-native';
import StatusComponent from './component/StatusComponent';
import HeaderComponent from './component/headerComponent';
import Router from './component/Router';
import MainPage from './component/MainPage';
export default class Point extends Component {
render() {
return (
<View style={{flex: 1,backgroundColor: 'white'}}>
<StatusComponent/>
<HeaderComponent/>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#F5FCFF',
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
});
AppRegistry.registerComponent('Point',() => Point);
,這裏是我的狀況組件
import React,{ Component } from 'react';
import {
Text,
View,
StyleSheet
} from 'react-native';
export class StatusComponent extends Component{
render()
{
return(
<View style={styles.Bar}>
</View>
)
};
}
export default StatusComponent;
const styles=StyleSheet.create({
Bar:{
backgroundColor: 'white',
height: 20
}
})
這裏是Router.Js代碼文件cousing問題
import React, { Component } from 'react'
import {
StyleSheet,
Text,
Navigator,
TouchableOpacity
} from 'react-native'
import MainPage from './MainPage'
import Sports from './Sports'
export default class Router extends Component {
constructor(){
super()
}
render() {
return (
<Navigator
initialRoute = {{ name: 'MainPage', title: 'MainPage' }}
renderScene = { this.renderScene }
navigationBar = {
<Navigator.NavigationBar
style = { styles.navigationBar }
routeMapper = { NavigationBarRouteMapper } />
}
/>
);
}
renderScene(route, navigator) {
if(route.name == 'MainPage') {
return (
<MainPage
navigator = {navigator}
{...route.passProps}
/>
)
}
if(route.name == 'Sports') {
return (
<Sports
navigator = {navigator}
{...route.passProps}
/>
)
}
}
}
var NavigationBarRouteMapper = {
LeftButton(route, navigator, index, navState) {
if(index > 0) {
return (
<TouchableOpacity
onPress = {() => { if (index > 0) { navigator.pop() } }}>
<Text style={ styles.leftButton }>
Back
</Text>
</TouchableOpacity>
)
}
else { return null }
},
RightButton(route, navigator, index, navState) {
if (route.openMenu) return (
<TouchableOpacity
onPress = {() => route.openMenu() }>
<Text style = { styles.rightButton }>
{ route.rightText || 'Menu' }
</Text>
</TouchableOpacity>
)
},
Title(route, navigator, index, navState) {
return (
<Text style = { styles.title }>
{route.title}
</Text>
)
}
};
const styles = StyleSheet.create({
navigationBar: {
backgroundColor: 'blue',
},
leftButton: {
color: '#ffffff',
margin: 10,
fontSize: 17,
},
title: {
paddingVertical: 10,
color: '#ffffff',
justifyContent: 'center',
fontSize: 18
},
rightButton: {
color: 'white',
margin: 10,
fontSize: 16
}
})
爲什麼要導出StatusComponent兩次?只是'導出默認類StatusComponent ..'就足夠了,或者刪除第一個導出。 – monssef
完成了這個@monssef – Asad
我更新了我的問題導致isse的Router.js看看@monssef – Asad