我是 React 世界的初学者。在我的项目中，我有不同数量的自定义手风琴对象，它们具有文本输入的平面列表。我如何通过从手风琴对象的父级单击单击来处理这样的输入系统。我想要一个按钮来收集所有当前输入，然后在服务器或任何其他相关页面上结束它。（我正在使用带有状态挂钩的功能布局。）
谢谢你的任何回应，最好的
您可能会在下面看到手风琴.js：
import React, { Component, useState, useEffect} from 'react';
import { View, TouchableOpacity, FlatList, StyleSheet, TextInput } from "react-native";
//import { Colors } from './Colors';
import { theme } from "../constants";
import Text from "./Text";
import Icon from "react-native-vector-icons/MaterialIcons";
import { ScrollView } from 'react-native-gesture-handler';
const Colors = {
PRIMARY: '#1abc9c',
WHITE: '#ffffff',
LIGHTGREEN: '#BABABA',
GREEN: '#0da935',
GRAY: '#f7f7f7',
LIGHTGRAY: '#C7C7C7',
DARKGRAY: '#5E5E5E',
CGRAY: '#ececec',
OFFLINE_GRAY: '#535353'
}
export default function Accordion (props) {
const [data, setData] = useState(props.data)
const [expanded, setExpanded] = useState(false)
const onClick = (index) => {
const temp = data.slice()
temp[index].value = !temp[index].value
console.log(temp)
setData(temp)
}
const toggleExpand = (section) => {
//this.setState({ expanded: !this.state.expanded )
setExpanded(prev_state => !prev_state)
props.fromparentonClick(expanded)
}
useEffect(() => {
console.log('will unmount')
}, [expanded]);
return (
<View>
<TouchableOpacity
style={styles.row}
onPress={() => toggleExpand()}
>
<Text style={[styles.title, styles.font]}>
{props.title}
</Text>
<Icon
name={
expanded
? "keyboard-arrow-up" //this is condinational ternary operator rendering :)
: "keyboard-arrow-down"
}
size={30}
color={Colors.DARKGRAY}
/>
</TouchableOpacity>
<View style={styles.parentHr} />
{ expanded && ( //this is short circuit operator
<View style={{}}>
<FlatList
data={data}
numColumns={1}
scrollEnabled={true}
renderItem={({ item, index }) => (
<View styles={styles.deneme}>
<Text style={[styles.font, styles.itemInActive]}>
{item.key}
</Text>
<TouchableOpacity
style={[
styles.childRow,
styles.button,
item.value ? styles.btnInActive : styles.btnActive
]}
onPress={() => onClick(index)}
>
<Icon
name={"check-circle"}
size={24}
color={item.value ? Colors.LIGHTGRAY : Colors.GREEN}
/>
{/* <Text style={[styles.font, styles.itemInActive]}>
{item.key}
</Text>*/}
<TextInput
style={
styles.text_input
}
blurOnSubmit
placeholder="input1"
placeholderTextColor="#60605e"
numeric
keyboardType={"numeric"}
maxLength={3}
/>
<TextInput
style={
styles.text_input
}
blurOnSubmit
placeholder="input2"
placeholderTextColor="#60605e"
numeric
keyboardType={"numeric"}
maxLength={3}
/>
<TextInput
style={
styles.text_input
}
blurOnSubmit
placeholder="input3"
placeholderTextColor="#60605e"
numeric
keyboardType={"numeric"}
maxLength={3}
/>
</TouchableOpacity>
<View style={styles.childHr} />
</View>
)}
/>
</View>
)}
</View>
);
}
const styles = StyleSheet.create({
container: {
justifyContent: 'center',
alignItems: 'center'
},
font: {
// fontFamily: Fonts.bold,
},
button: {
width: '100%',
height: 54,
alignItems: 'center',
paddingLeft: 35,
paddingRight: 35,
fontSize: 12,
},
title: {
fontSize: 14,
fontWeight: 'bold',
color: Colors.DARKGRAY,
},
itemActive: {
fontSize: 12,
color: Colors.GREEN,
},
itemInActive: {
fontSize: 12,
color: Colors.DARKGRAY,
},
btnActive: {
borderColor: Colors.GREEN,
},
btnInActive: {
borderColor: Colors.DARKGRAY,
},
row: {
flexDirection: 'row',
justifyContent: 'space-between',
height: 56,
paddingLeft: 25,
paddingRight: 18,
alignItems: 'center',
backgroundColor: Colors.CGRAY,
},
childRow: {
flexDirection: 'row',
justifyContent: 'space-around',
backgroundColor: Colors.GRAY,
},
parentHr: {
height: 1,
color: Colors.WHITE,
width: '100%'
},
childHr: {
height: 1,
backgroundColor: Colors.LIGHTGRAY,
width: '100%',
},
colorActive: {
borderColor: Colors.GREEN,
},
colorInActive: {
borderColor: Colors.DARKGRAY,
},
text_input: {
width: 80,
backgroundColor: "#dde8c9",
padding: 10,
textAlign: 'center'
},
deneme: {
flexDirection: 'column',
textAlign: 'center',
justifyContent: 'center',
}
});
您可能会在下面看到父组件：
import * as WebBrowser from 'expo-web-browser';
import React, { Component,useState } from 'react';
import {
Image,
Platform,
ScrollView,
StyleSheet,
Text,
TouchableOpacity,
View,
} from 'react-native';
import { Button, Block, Input,Accordion ,Header} from "../components";
import { theme } from "../constants";
//import {CATEGORIES} from "../Data/dersler";
import SwitchSelector from "react-native-switch-selector";
import { MonoText } from '../components/StyledText';
import 'core-js/es6/symbol'; import 'core-js/fn/symbol/iterator';
export default function HomeScreen (props) {
const options = [
{ label: "x", value: "1" },
{ label: "y", value: "2" }
]
const initial_state = {
courses: [
{
key: "c1",
title: "ss",
data: [
{ key: "dd", value: "false" },
{ key: "ff", value: "false" },
{ key: "gg ", value: "false" }
]
},
{
key: "c2",
title: "ss2",
data: [
{ key: "dd", value: "false" },
{ key: "ff", value: "false" },
{ key: "gg", value: "false" },
{ key: "cc", value: "false" }
]
},
],
}
const second_state = {
courses: [
{
key: "c1",
title: "dd",
data: [
{ key: "cc", value: "false" },
{ key: "dd", value: "false" },
{ key: "ff ", value: "false" }
]
},
]
}
const [exam, setExam] = useState(initial_state)
const [onlineAcc, setonlineAcc] = useState(false)
const [activeSession, setactiveSession] = useState(0)
const controlAccordions = (arg) => {
setonlineAcc(prev_state => !prev_state)
//console.log(onlineAcc)
console.log(arg)
if(arg){
setactiveSession(prev_state => prev_state -1 )
}
else {
setactiveSession(prev_state => prev_state + 1)
}
console.log(activeSession)
}
const renderAccordians = () => {
let items = [];
//console.log(`Call onPress with value: ${ this.state}`);
//console.log(exam.courses);
return exam.courses.map(ex => (<Accordion active={activeSession} fromparentonClick={controlAccordions} title={ex.title} data={ex.data} key={ex.key} /> ))
//return items;
}
return (
<View style={styles.container}>
<Header title="Anasayfa" />
<SwitchSelector
options={options}
initial={1}
buttonColor={theme.colors.gray2}
onPress={value => {
if( value== 1)
{setExam (second_state)}
else {
setExam(initial_state)
}
console.log(value)
}}
/>
<ScrollView style={styles.container}>
{renderAccordians()}
</ScrollView>
</View>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: '#fff',
},
developmentModeText: {
marginBottom: 20,
color: 'rgba(0,0,0,0.4)',
fontSize: 14,
lineHeight: 19,
textAlign: 'center',
},
contentContainer: {
paddingTop: 30,
},
welcomeContainer: {
alignItems: 'center',
marginTop: 10,
marginBottom: 20,
},
welcomeImage: {
width: 100,
height: 80,
resizeMode: 'contain',
marginTop: 3,
marginLeft: -10,
},
getStartedContainer: {
alignItems: 'center',
marginHorizontal: 50,
},
homeScreenFilename: {
marginVertical: 7,
},
codeHighlightText: {
color: 'rgba(96,100,109, 0.8)',
},
codeHighlightContainer: {
backgroundColor: 'rgba(0,0,0,0.05)',
borderRadius: 3,
paddingHorizontal: 4,
},
getStartedText: {
fontSize: 17,
color: 'rgba(96,100,109, 1)',
lineHeight: 24,
textAlign: 'center',
},
tabBarInfoContainer: {
position: 'absolute',
bottom: 0,
left: 0,
right: 0,
...Platform.select({
ios: {
shadowColor: 'black',
shadowOffset: { width: 0, height: -3 },
shadowOpacity: 0.1,
shadowRadius: 3,
},
android: {
elevation: 20,
},
}),
alignItems: 'center',
backgroundColor: '#fbfbfb',
paddingVertical: 20,
},
tabBarInfoText: {
fontSize: 17,
color: 'rgba(96,100,109, 1)',
textAlign: 'center',
},
navigationFilename: {
marginTop: 5,
},
helpContainer: {
marginTop: 15,
alignItems: 'center',
},
helpLink: {
paddingVertical: 15,
},
helpLinkText: {
fontSize: 14,
color: '#2e78b7',
},
});