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high-mini/components/city-select/city-select.vue

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10 KiB

<template>
<!-- 城市选择-->
<view class="city-select">
<scroll-view :scroll-top="scrollTop" scroll-y="true" class="city-select-main" id="city-select-main"
:scroll-into-view="toView">
<!-- 预留搜索-->
<view class="city-serach" v-if="isSearch"><input @input="keyInput" :placeholder="placeholder"
class="city-serach-input" /></view>
<!-- 当前定位城市 -->
<view class="hot-title" v-if="activeCity && !serachCity">当前定位城市</view>
<view class="hot-city" v-if="activeCity && !serachCity">
<view class="hot-item" @click="cityTrigger(activeCity)">{{ activeCity[formatName] }}</view>
</view>
<!-- 热门城市 -->
<!-- <view class="hot-title" v-if="hotCity.length > 0 && !serachCity">热门城市</view>
<view class="hot-city" v-if="hotCity.length > 0 && !serachCity">
<template v-for="(item, index) in hotCity">
<view :key="index" @click="cityTrigger(item, 'hot')" class="hot-item">{{ item[formatName] }}</view>
</template>
</view> -->
<!-- 城市列表(搜索前) -->
<view class="citys" v-if="!serachCity">
<view v-for="(city, index) in sortItems" :key="index" v-show="city.isCity" class="citys-row">
<view class="citys-item-letter" :id="'city-letter-' + (city.name === '#' ? '0' : city.name)">
{{ city.name }}</view>
<view class="citys-item" v-for="(item, inx) in city.citys" :key="inx" @click="cityTrigger(item)">
{{ item.cityName }}</view>
</view>
</view>
<!-- 城市列表(搜索后) -->
<view class="citys" v-if="serachCity">
<view v-for="(item, index) in searchDatas" :key="index" class="citys-row">
<view class="citys-item" :key="inx" @click="cityTrigger(item)">{{ item.name }}</view>
</view>
</view>
</scroll-view>
<!-- 城市选择索引-->
<view class="city-indexs-view" v-if="!serachCity">
<view class="city-indexs">
<view v-for="(cityIns, index) in handleCity" class="city-indexs-text" v-show="cityIns.isCity"
:key="index" @click="cityindex(cityIns.forName)">
{{ cityIns.name }}
</view>
</view>
</view>
</view>
</template>
<script>
import citySelect from './citySelect.js';
export default {
props: {
//查询提示文字
placeholder: {
type: String,
default: '请输入城市名称'
},
//传入要排序的名称
formatName: {
type: String,
default: 'cityName'
},
//当前定位城市
activeCity: {
type: Object,
default: () => null
},
//热门城市
hotCity: {
type: Array,
default: () => []
},
//城市数据
obtainCitys: {
type: Array,
default: () => []
},
//是否有搜索
isSearch: {
type: Boolean,
default: true
}
},
data() {
return {
toView: 'city-letter-Find', //锚链接 初始值
scrollTop: 0, //scroll-view 滑动的距离
cityindexs: [], // 城市索引
activeCityIndex: '', // 当前所在的城市索引
handleCity: [], // 处理后的城市数据
serachCity: '', // 搜索的城市
cityData: []
};
},
computed: {
/**
* @desc 城市列表排序
* @return Array
*/
sortItems() {
for (let index = 0; index < this.handleCity.length; index++) {
if (this.handleCity[index].isCity) {
let cityArr = this.handleCity[index].citys;
cityArr = cityArr.sort(function(a, b) {
var value1 = a.unicode;
var value2 = b.unicode;
return value1 - value2;
});
}
}
return this.handleCity;
},
/**
* @desc 搜索后的城市列表
* @return Array
*/
searchDatas() {
var searchData = [];
for (let i = 0; i < this.cityData.length; i++) {
if (this.cityData[i][this.formatName].indexOf(this.serachCity) !== -1) {
searchData.push({
oldData: this.cityData[i],
name: this.cityData[i][this.formatName]
});
}
}
return searchData;
}
},
created() {
// 初始化城市数据
this.cityData = this.obtainCitys;
this.initializationCity();
this.buildCityindexs();
},
watch: {
obtainCitys(newData) {
this.updateCitys(newData);
}
},
methods: {
/**
* @desc 初始化
*/
updateCitys(data) {
if (data && data.length) {
this.cityData = data;
this.initializationCity();
this.buildCityindexs();
}
},
/**
* @desc 监听输入框的值
*/
keyInput(event) {
this.serachCity = event.detail.value;
},
/**
* @desc 初始化城市数据
* @return undefind
*/
initializationCity() {
this.handleCity = [];
const cityLetterArr = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q',
'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '#'
];
for (let index = 0; index < cityLetterArr.length; index++) {
this.handleCity.push({
name: cityLetterArr[index],
isCity: false, // 用于区分是否含有当前字母开头的城市
citys: [], // 存放城市首字母含是此字母的数组
forName: 'city-letter-' + (cityLetterArr[index] == '#' ? '0' : cityLetterArr[
index]) //label的绑定
});
}
},
/**
* @desc 得到城市的首字母
* @param str String
*/
getLetter(str) {
return citySelect.getFirstLetter(str[0]);
},
/**
* @desc 构建城市索引
* @return undefind
*/
buildCityindexs() {
this.cityindexs = [];
for (let i = 0; i < this.cityData.length; i++) {
// 获取首字母
const cityLetter = this.getLetter(this.cityData[i][this.formatName]).firstletter;
// 获取当前城市首字母的unicode,用作后续排序
const unicode = this.getLetter(this.cityData[i][this.formatName]).unicode;
const index = this.cityIndexPosition(cityLetter);
if (this.cityindexs.indexOf(cityLetter) === -1) {
this.handleCity[index].isCity = true;
this.cityindexs.push(cityLetter);
}
this.handleCity[index].citys.push({
cityName: this.cityData[i][this.formatName],
unicode: unicode,
oldData: this.cityData[i]
});
}
},
/**
* @desc 滑动到城市索引所在的地方
* @param id String 城市索引
*/
cityindex(id) {
this.toView = id;
// //创建节点查询器
// const query = uni.createSelectorQuery().in(this)
// var that = this
// that.scrollTop = 0
// //滑动到指定位置(解决方法:重置到顶部,重新计算,影响:页面会闪一下)
// setTimeout(() => {
// query
// .select('#city-letter-' + (id === '#' ? '0' : id))
// .boundingClientRect(data => {
// // console.log("得到布局位置信息" + JSON.stringify(data));
// // console.log("节点离页面顶部的距离为" + data.top);
// data ? (that.scrollTop = data.top) : void 0
// })
// .exec()
// }, 0)
},
/**
* @desc 获取城市首字母的unicode
* @param letter String 城市索引
*/
cityIndexPosition(letter) {
if (!letter) {
return '';
}
const ACode = 65;
return letter === '#' ? 26 : letter.charCodeAt(0) - ACode;
},
/** @desc 城市列表点击事件
* @param Object
*/
cityTrigger(item) {
// 传值到父组件
this.$emit('cityClick', item.oldData ? item.oldData : item);
}
}
};
</script>
<style lang="scss">
//宽度转换vw
@function vww($number) {
@return ($number / 375) * 750+rpx;
}
view {
box-sizing: border-box;
}
.city-serach {
width: 100%;
color: #4a4a4a;
padding: 0 vww(10);
&-input {
margin: 20rpx 0;
height: 80rpx;
line-height: 80rpx;
font-size: 28rpx;
padding: 0 25rpx;
background-color: white;
border-radius: 25px;
}
}
.city-select-main {
position: relative;
// overflow: scroll;
// -webkit-overflow-scrolling: touch;
width: 100%;
height: 100%;
background: #f6f5fa;
// overflow-y: auto;
}
.city-select {
position: relative;
width: 100vw;
height: 100vh;
background: #f6f5fa;
// 热门城市
.hot-title {
padding-left: vww(23);
width: 100vw;
font-size: 14px;
line-height: vww(40);
color: #9b9b9b;
}
.hot-city {
padding-left: vww(23);
padding-right: vww(20);
overflow: hidden;
width: 100vw;
.hot-item {
float: left;
padding: 0 vww(5);
margin-right: vww(16);
margin-bottom: vww(6);
overflow: hidden;
width: vww(100);
height: vww(38);
font-size: 14px;
text-align: center;
display: -webkit-box;
-webkit-box-orient: vertical;
-webkit-line-clamp: 1;
line-height: vww(38);
color: #4a4a4a;
background: #fff;
border-radius: 5px;
border: 1px solid #ebebf0;
&:nth-child(3n) {
margin-right: 0;
}
}
.hot-hidden {
display: none;
margin-right: 0;
}
}
.citys {
.citys-row {
padding-left: vww(18);
width: 100%;
font-size: 14px;
background: #fff;
.citys-item-letter {
margin-left: vww(-18);
padding-left: vww(18);
margin-top: -1px;
width: 100vw;
line-height: vww(30);
color: #9b9b9b;
background: #f6f5fa;
border-top: none;
}
.citys-item {
width: 100%;
line-height: vww(50);
color: #4a4a4a;
border-bottom: 1px solid #ebebf0;
&:last-child {
border: none;
}
}
}
}
.city-indexs-view {
position: absolute;
right: 0;
top: 0;
z-index: 999;
display: flex;
width: vww(20);
height: 100%;
text-align: center;
.city-indexs {
width: vww(20);
text-align: center;
vertical-align: middle;
align-self: center;
.city-indexs-text {
margin-bottom: vww(10);
width: vww(20);
font-size: 12px;
color: #4d8cfd;
&:last-child {
margin-bottom: 0;
}
}
}
}
}
</style>