一般代码组织问题,因为我是新手来回应原生和反应导航。
如何整理代码?
目前我所有的工作代码(不包括模块和依赖项)都在一个文件(app.js)中。我无法想象这是正确的方法。 我如何拆分此代码?
组件文件夹中各页的页面是否应该不同?
如果是,我会export
他们然后import
他们进入此档案吗?
不确定如何继续。 app.js文件代码如下,我的整个代码库位于:https://github.com/samrao2/practiciatest
import React from 'react';
import { StyleSheet, Text, View, Image } from 'react-native';
import { StackNavigator } from 'react-navigation';
import {
Button,
FormLabel,
FormInput,
FormValidationMessage,
Divider } from 'react-native-elements';
//import { Button } from './src/components/Button';
//import { CardSection } from './src/components/CardSection';
class HomeScreen extends React.Component {
static navigationOptions = {
title: 'PRACTICIA'
};
render() {
const { navigate } = this.props.navigation;
return (
<View style={{ backgroundColor: 'white', flex: 1 }}>
<Image flex="1" resizeMode="cover" imageSrc={{ require: ('./practicialogo.PNG') }} />
<Divider style={{ height: 50, backgroundColor: 'white' }} />
<Text style={styles.textStyle}>Sign up as a...</Text>
<Divider style={{ height: 50, backgroundColor: 'white' }} />
<Button
raised
backgroundColor="#3399ff"
borderRadius='20'
onPress={() => navigate('Teacher')}
title="TEACHER"
/>
<Divider style={{ height: 15, backgroundColor: 'white' }} />
<Button
raised
backgroundColor="green"
borderRadius='20'
onPress={() => navigate('Parent')}
title="PARENT"
/>
<Divider style={{ height: 15, backgroundColor: 'white' }} />
<Button
raised
backgroundColor="brown"
borderRadius='20'
onPress={() => navigate('Student')}
title="ADULT STUDENT (18+)"
/>
<Text style={styles.text2Style}>Already Registered?</Text>
<Button
raised
flex='2'
backgroundColor="grey"
borderRadius='20'
onPress={() => navigate('Login')}
title="Login"
/>
</View>
);
}
}
class TeacherSignUp extends React.Component {
static navigationOptions = {
title: 'TEACHER SIGN UP',
};
render() {
return (
<View style={{ backgroundColor: 'white', flex: 1 }}>
<Text>Sign Up</Text>
<FormLabel>Email</FormLabel>
<FormInput />
<FormLabel>Password</FormLabel>
<FormInput />
<FormLabel>First Name</FormLabel>
<FormInput />
<FormLabel>LastNme</FormLabel>
<FormInput />
<Divider style={{ height: 10, backgroundColor: 'white' }} />
<Button
raised
backgroundColor="brown"
borderRadius='0'
// onPress={() => navigate()}
title="SUBMIT"
/>
</View>
);
}
}
class ParentSignUp extends React.Component {
static navigationOptions = {
title: 'PARENT SIGN UP',
};
render() {
return (
<View style={{ backgroundColor: 'white', flex: 1 }}>
<Text>Sign Up</Text>
</View>
);
}
}
class StudentSignUp extends React.Component {
static navigationOptions = {
title: 'ADULT STUDENT SIGN UP',
};
render() {
return (
<View style={{ backgroundColor: 'white', flex: 1 }}>
<Text>Sign Up</Text>
</View>
);
}
}
class Login extends React.Component {
static navigationOptions = {
title: 'LOGIN',
};
render() {
return (
<View style={{ backgroundColor: 'white', flex: 1 }}>
<FormLabel>Email/Username</FormLabel>
<FormInput />
<FormLabel>Password</FormLabel>
<FormInput />
<Divider style={{ height: 10, backgroundColor: 'white' }} />
<Button
raised
backgroundColor="grey"
borderRadius='0'
// onPress={() => navigate()}
title="SUBMIT"
/>
</View>
);
}
}
const SimpleApp = StackNavigator({
Home: { screen: HomeScreen },
Teacher: { screen: TeacherSignUp },
Parent: { screen: ParentSignUp },
Student: { screen: StudentSignUp },
Login: { screen: Login },
});
export default class App extends React.Component {
render() {
return <SimpleApp />;
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: 'white',
alignItems: 'center',
justifyContent: 'center'
},
textStyle: {
alignSelf: 'center',
color: '#617189',
fontSize: 20,
fontWeight: '600',
paddingTop: 10,
paddingBottom: 10
},
text2Style: {
alignSelf: 'center',
color: '#617189',
fontSize: 14,
fontWeight: '300',
paddingTop: 10,
paddingBottom: 10
},
titleText: {
fontSize: 20,
fontWeight: 'bold',
},
});
答案 0 :(得分:0)
没有正确的方法来整理您的申请。 我们的目标是尝试创建模块化组件,这些组件组合在一起构建完整的应用程序。 使您的应用程序模块化的另一个好处是,您可以获得可以在需要的地方插入的可重用组件。
是。从一个屏幕应用程序看起来似乎并不明显,但是当您开始构建更复杂的应用程序时,您更喜欢在自己的文件中包含页面。
是的,您将从特定页面导出它们,然后将其导入您希望使用它的应用程序中。
数据将使用道具从主应用页面传递到组件。
基本示例的文件夹布局
App.js
Components
- HomeScreen
- Login Screen
- SettingsScreen
- Config
- Config files for any library you may have installed(example firebase)
- Helpers
- HelperFunctions.js(reusable javascript function)
import React from 'react';
import { Component, StyleSheet, Text, View, ActivityIndicator } from 'react-native';
import HomeScreen from './Components/HomeScreen'
export default class App extends Component{
render(){
return(
<HomeScreen/>
)
}
}
import React, { Component } from "react";
import {
View,
Text,
StyleSheet
} from "react-native";
export default class HomeScreen extends Component{
render(){
return (
<View>
<Text> This is the home Screen></Text>
</View>
);
}
}