我编写了一个简单的React Native应用程序,它将在第一个屏幕上显示两个背景,一个背景彼此重叠。该应用程序运行但它只显示一个空白的白色屏幕。我已经从App.js文件中的'./src/components/login'中导入了login.js文件,但是在白色旁的屏幕上没有显示任何内容?
我是否需要安装任何其他依赖项才能与react-native中的导入的.js文件连接?我正在使用react-native-cli:2.0.1 react-native:0.57.8和适用于android studio 3.2的工具。
.src / components / login
import React, { Component } from 'react';
import { AppRegister, StyleSheet, Text, View, Image } from 'react-native';
export default class Login extends Component {
render() {
return (
<View style = {styles.container}>
<View style = {styles.backgroundContainer}>
<Image style = {styles.backdrop} source = {require('../../images/vape.jpg')} resizeMode = 'cover'/>
</View>
<View style = { styles.overlay}>
<Image
style={styles.logo}
source={require('../../images/smoke.jpg')}/>
<Text style={styles.title}>Ada Smoke Shop</Text>
</View>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex:1,
alignItems: 'center',
},
backgroundContainer: {
flex:1,
position: 'absolute',
top:0,
bottom:0,
left:0,
right:0
},
overlay: {
opacity: 0.5,
backgroundColor: '#000000',
flexDirection: 'column',
top:100
},
logoContainer: {
alignItems: 'center',
flexGrow: 1,
justifyContent: 'center',
},
logo: {
backgroundColor: '#000000',
top:150,
left: 50,
width: 200,
height: 200
},
backdrop: {
flex:1,
},
title: {
color: '#B03A2E',
marginTop:150,
width:300,
height:300,
fontSize: 30,
fontStyle: 'italic',
fontFamily: 'Baskerville',
textAlign: 'center',
opacity: 10
},
});
App.js
import React, { Component } from 'react';
import { AppRegister, StyleSheet, Text, View, Image } from 'react-native';
import login from './src/components/login';
export default class App extends Component {
render() {
return (
<View style = {styles.container}>
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex:1,
alignItems: 'center'
}
});
答案 0 :(得分:0)
render
组件已导入,但未使用。您在App.js中的render() {
return (
<View style = {styles.container}>
<Login />
</View>
);
}
应该是这样的:
Model