近来公司的项目里面涉及到一个类似”收起-展开”的UI功能模块,先是在网上猥琐一番之后,并未发现什么.无奈之下,只能自己手撸一个了.

一开始做了个”互斥收起-展开”,公司可能不太满意,让我抄另外一个APP”非互斥收起-展开”,哎…
先上图:
非互斥缩一缩
非互斥缩一缩

互斥缩一缩
互斥缩一缩

实现原理很简单:
非互斥缩一缩: 先在json数据里面定义type标示,标示一级展开|收起状态,在UI里面就根据这个标示判断是收起还是展开,而二级收起|展开需要为每组数据定义一个唯一标示.
互斥缩一缩:先定义一个state,根据该state来显示收起UI还是展开,因为state只有一个,也就形成了只有一组是展开.同时,在判断二次展开|收起这里也需要在json里面定义一个唯一标示.
这些数据标示可以事先和后端人员商量好,让后端人员帮你弄好,也可以自己拿到数据之后再插入.
废话不多少,戴起磨砂手套开始撸!!!
直接上源码:
非互斥缩一缩

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/* eslint-disable */
import React, { Component } from 'react'
import {
StyleSheet,
View,
Image,
Text,
Dimensions,
TouchableOpacity,
FlatList,
Linking,
} from 'react-native'
const { width } = Dimensions.get('window')

export default class One extends Component {
// 构造
constructor(props) {
super(props)
// 初始状态
this.row = null
this.state = {
governmentData: [
{
id: '0',
name: '社会保障局',
type: false,
childs: [
{
index: '00',
name: '资料教室',
type: false,
tel: '5233',
message: '查询资料,注销档案',
},
{
name: '后勤部',
type: false,
index: '01',
tel: '1645682',
message: '不对外服务',
},
],
},
{
id: '1',
name: '卫生局',
type: false,
childs: [
{
name: '妇产科',
type: false,
index: '10',
tel: '112转678',
message: '接待孕妇,待产孕妇,军嫂预先',
},
{
name: '儿科',
type: false,
index: '11',
tel: '112转008',
message: '小于12周岁儿童就医',
},
{
name: '失恋科',
type: false,
index: '12',
tel: '112转出去',
message: '回家玩蛋去!!!',
},
],
},
{
id: '2',
name: '神盾局',
type: false,
childs: [
{
name: '城管大队',
type: false,
index: '20',
tel: '110',
title: '打打打',
message: '镇压起义',
},
],
},
],
isRefresh: true,
index: -1, //默认展开负一行
indexIndex: -1,
}
}

componentDidMount() {
this.flatlist = null
this.setState({
isRefresh: false,
})
}

/**
* 下拉刷新
* */
onRefresh = () => {
this.setState({
isRefresh: false,
})
}


/**
* 点击一级
* */
itemOnclick = item => {
var data = this.state.governmentData
data.map((itemm, i) => {
if (i == item.index) {
itemm.type = !itemm.type
}
})
this.setState({
governmentData: data,
})
}

/**
* 点击二级
* */
itemitemOnclick = e => {
var data = this.state.governmentData
data.map((item, index) => {
item.childs.map((item, index) => {
if (item.index == e.index) {
item.type = !item.type
}
})
})
this.setState({
governmentData: data,
})
}

/**
* 打电话
* */
tellPhone = item => {
Linking.openURL(`tel:${item.tel}`)
}

/**
* FlatList render
* */
renderRow = item => (
<View ref={item.index}>
<View>
<TouchableOpacity onPress={() => this.itemOnclick(item)}>
<View
style={{
flexDirection: 'row',
backgroundColor: 'white',
height: 30,
alignItems: 'center',
}}
>
<View
style={{
marginLeft: 5,
width: 4,
height: 10,
paddingTop: 7,
paddingBottom: 7,
backgroundColor:'red'
}}
/>
<Text style={{ color: '#333333', marginLeft: 5, fontSize: 16 }}>
{item.item.name}
</Text>
{/* 右边箭头 */}
<Image
source={
item.item.type
? require('./image/btnDown.png')
: require('./image/right.png')
}
style={{ position: 'absolute', right: 15, width: 15, height: 15 }}
/>
</View>
</TouchableOpacity>
<View
style={{
backgroundColor: 'rgb(228,228,228)',
width: width,
height: 1,
}}
/>
</View>
{item.item.type
? item.item.childs.map((item, index) => (
<View style={{ backgroundColor: 'white' }} key={index}>
<View style={{ marginLeft: 7, marginTop: 10 }}>
<View style={{ flexDirection: 'row' }}>
<Image
source={
item.type
? require('./image/btnDownB.png')
: require('./image/btnRightB.png')
}
style={{ width: 10, height: 10 }}
/>
<Text
onPress={() => this.itemitemOnclick(item)}
style={{ marginLeft: 7 }}
>
{item.name}
</Text>
</View>
<View
style={{
backgroundColor: 'rgb(228,228,228)',
width: width,
height: 1,
marginTop: 10,
}}
/>
</View>
{item.type ? (
<View>
<View
style={{
height: 40,
alignItems: 'center',
flexDirection: 'row',
}}
>
<TouchableOpacity
style={{ flexDirection: 'row' }}
onPress={() => this.tellPhone(item)}
>
<Image
source={require('./image/phone.png')}
style={{ marginLeft: 10, width: 15, height: 15 }}
/>
<Text style={{ marginLeft: 10 }}>电话 {item.tel}</Text>
</TouchableOpacity>
</View>
<View
style={{
backgroundColor: 'rgb(228,228,228)',
width: width,
height: 1,
}}
/>

<View
style={{
height: 40,
alignItems: 'center',
flexDirection: 'row',
}}
>
<Image
source={require('./image/tlak.png')}
style={{ marginLeft: 10, width: 15, height: 15 }}
/>
<Text style={{ marginLeft: 10 }}>留言 {item.message}</Text>
</View>
<View
style={{
backgroundColor: 'rgb(228,228,228)',
width: width,
height: 1,
}}
/>
</View>
) : null}
</View>
))
: null}
</View>
)

render() {
return (
<FlatList
data={this.state.governmentData}
renderItem={this.renderRow}
onRefresh={() => this.onRefresh()}
refreshing={this.state.isRefresh}
/>
)
}
}

const styles = StyleSheet.create({
container: {
flex: 1,
},
icon: {
width: 22,
height: 22,
},
})

互斥缩一缩

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/* eslint-disable */
import React, { Component } from 'react'
import {
StyleSheet,
View,
Image,
Text,
Dimensions,
TouchableOpacity,
FlatList,
Linking,
} from 'react-native'
const { width } = Dimensions.get('window')

export default class Two extends Component {
// 构造
constructor(props) {
super(props)
// 初始状态
this.state = {
governmentData: [
{
name: '社会保障局',
childs: [
{
index:0,
name: '资料教室',
tel: '5233',
message: '查询资料,注销档案',
},
{
index:1,
name: '后勤部',
tel: '1645682',
message: '不对外服务',
},
],
},
{
name: '卫生局',
childs: [
{
index:0,
name: '妇产科',
tel: '112转678',
message: '接待孕妇,待产孕妇,军嫂预先',
},
{
index:1,
name: '儿科',
tel: '112转008',
message: '小于12周岁儿童就医',
},
{
index:2,
name: '失恋科',
tel: '112转出去',
message: '回家玩蛋去!!!',
},
],
},
{
name: '神盾局',
childs: [
{
index:0,
name: '城管大队',
tel: '110',
title: '打打打',
message: '镇压起义',
},
],
},
],
isRefresh: true,
index: -1, //默认展开负一行
indexIndex: -1,
}
}

componentDidMount() {
this.setState({
isRefresh: false,
})
}

/**
* 下拉刷新
* */
onRefresh = () => {
this.setState({
isRefresh: false,
})
}

/**
* 点击一级
* */
itemOnclick = item => {
this.setState({
index: item.index,
indexIndex: -1
})
}

/**
* 点击二级
* */
itemitemOnclick = e => {
this.setState({
indexIndex: e.index,
})
}

/**
* 打电话
* */
tellPhone = item => {
Linking.openURL(`tel:${item.tel}`)
}

/**
* FlatList render
* */
renderRow = item => (
<View ref={item.index}>
<View>
<TouchableOpacity onPress={() => this.itemOnclick(item)}>
<View
style={{
flexDirection: 'row',
backgroundColor: 'white',
height: 30,
alignItems: 'center',
}}
>
<View
style={{
marginLeft: 5,
width: 4,
height: 10,
paddingTop: 7,
paddingBottom: 7,
backgroundColor:'red'
}}
/>
<Text style={{ color: '#333333', marginLeft: 5, fontSize: 16 }}>
{item.item.name}
</Text>
{/* 右边箭头 */}
<Image
source={
item.index == this.state.index
? require('./image/btnDown.png')
: require('./image/right.png')
}
style={{ position: 'absolute', right: 15, width: 15, height: 15 }}
/>
</View>
</TouchableOpacity>
<View
style={{
backgroundColor: 'rgb(228,228,228)',
width: width,
height: 1,
}}
/>
</View>
{item.index == this.state.index
? item.item.childs.map((item, index) => (
<View style={{ backgroundColor: 'white' }} key={index}>
<View style={{ marginLeft: 7, marginTop: 10 }}>
<View style={{ flexDirection: 'row' }}>
<Image
source={
index == this.state.indexIndex
? require('./image/btnDownB.png')
: require('./image/btnRightB.png')
}
style={{ width: 10, height: 10 }}
/>
<Text
onPress={() => this.itemitemOnclick(item)}
style={{ marginLeft: 7 }}
>
{item.name}
</Text>
</View>
<View
style={{
backgroundColor: 'rgb(228,228,228)',
width: width,
height: 1,
marginTop: 10,
}}
/>
</View>
{item.index == this.state.indexIndex
? (
<View>
<View
style={{
height: 40,
alignItems: 'center',
flexDirection: 'row',
}}
>
<TouchableOpacity
style={{ flexDirection: 'row' }}
onPress={() => this.tellPhone(item)}
>
<Image
source={require('./image/phone.png')}
style={{ marginLeft: 10, width: 15, height: 15 }}
/>
<Text style={{ marginLeft: 10 }}>电话 {item.tel}</Text>
</TouchableOpacity>
</View>
<View
style={{
backgroundColor: 'rgb(228,228,228)',
width: width,
height: 1,
}}
/>

<View
style={{
height: 40,
alignItems: 'center',
flexDirection: 'row',
}}
>
<Image
source={require('./image/tlak.png')}
style={{ marginLeft: 10, width: 15, height: 15 }}
/>
<Text style={{ marginLeft: 10 }}>留言 {item.message}</Text>
</View>
<View
style={{
backgroundColor: 'rgb(228,228,228)',
width: width,
height: 1,
}}
/>
</View>
) : null}
</View>
))
: null}
</View>
)

render() {
return (
<FlatList
data={this.state.governmentData}
renderItem={this.renderRow}
onRefresh={() => this.onRefresh()}
refreshing={this.state.isRefresh}
/>
)
}
}

const styles = StyleSheet.create({
container: {
flex: 1,
},
icon: {
width: 22,
height: 22,
},
})

源码