<template>
<u-popup v-model="value" mode="bottom" :popup="false" :mask="true" :closeable="true" :safe-area-inset-bottom="true"
close-icon-color="#ffffff" :z-index="uZIndex" :maskCloseAble="maskCloseAble" @close="close">
<u-tabs v-if="value" :list="genTabsList" :is-scroll="true" :current="tabsIndex" @change="tabsChange" ref="tabs"></u-tabs>
<view class="area-box">
<view class="u-flex" :class="{ 'change':isChange }">
<view class="area-item">
<view class="u-padding-10 u-bg-gray" style="height: 100%;">
<scroll-view :scroll-y="true" style="height: 100%">
<u-cell-group>
<u-cell-item v-for="(item,index) in provinces" :title="item.label" :arrow="false" :index="index" :key="index"
@click="provinceChange">
<u-icon v-if="isChooseP&&province===index" slot="right-icon" size="34" name="checkbox-mark"></u-icon>
</u-cell-item>
</u-cell-group>
</scroll-view>
</view>
</view>
<view class="area-item">
<view class="u-padding-10 u-bg-gray" style="height: 100%;">
<scroll-view :scroll-y="true" style="height: 100%">
<u-cell-group v-if="isChooseP">
<u-cell-item v-for="(item,index) in citys" :title="item.label" :arrow="false" :index="index" :key="index"
@click="cityChange">
<u-icon v-if="isChooseC&&city===index" slot="right-icon" size="34" name="checkbox-mark"></u-icon>
</u-cell-item>
</u-cell-group>
</scroll-view>
</view>
</view>
<view class="area-item">
<view class="u-padding-10 u-bg-gray" style="height: 100%;">
<scroll-view :scroll-y="true" style="height: 100%">
<u-cell-group v-if="isChooseC">
<u-cell-item v-for="(item,index) in areas" :title="item.label" :arrow="false" :index="index" :key="index"
@click="areaChange">
<u-icon v-if="isChooseA&&area===index" slot="right-icon" size="34" name="checkbox-mark"></u-icon>
</u-cell-item>
</u-cell-group>
</scroll-view>
</view>
</view>
</view>
</view>
</u-popup>
</template>
<script>
import provinces from "uview-ui/libs/util/province.js";
import citys from "uview-ui/libs/util/city.js";
import areas from "uview-ui/libs/util/area.js";
/**
* city-select 省市区级联选择器
* @property {String Number} z-index 弹出时的z-index值（默认1075）
* @property {Boolean} mask-close-able 是否允许通过点击遮罩关闭Picker（默认true）
* @property {String} default-region 默认选中的地区，中文形式
* @property {String} default-code 默认选中的地区，编号形式
*/
export default {
name: 'u-city-select',
props: {
// 通过双向绑定控制组件的弹出与收起
value: {
type: Boolean,
default: false
},
// 默认显示的地区，可传类似["河北省", "秦皇岛市", "北戴河区"]
defaultRegion: {
type: Array,
default () {
return [];
}
},
// 默认显示地区的编码，defaultRegion和areaCode同时存在，areaCode优先，可传类似["13", "1303", "130304"]
areaCode: {
type: Array,
default () {
return [];
}
},
// 是否允许通过点击遮罩关闭Picker
maskCloseAble: {
type: Boolean,
default: true
},
// 弹出的z-index值
zIndex: {
type: [String, Number],
default: 0
}
},
data() {
return {
cityValue: "",
isChooseP: false, //是否已经选择了省
province: 0, //省级下标
provinces: provinces,
isChooseC: false, //是否已经选择了市
city: 0, //市级下标
citys: citys[0],
isChooseA: false, //是否已经选择了区
area: 0, //区级下标
areas: areas[0][0],
tabsIndex: 0,
}
},
mounted() {
this.init();
},
computed: {
isChange() {
return this.tabsIndex > 1;
},
genTabsList() {
let tabsList = [{
name: "请选择"
}];
if (this.isChooseP) {
tabsList[0]['name'] = this.provinces[this.province]['label'];
tabsList[1] = {
name: "请选择"
};
}
if (this.isChooseC) {
tabsList[1]['name'] = this.citys[this.city]['label'];
tabsList[2] = {
name: "请选择"
};
}
if (this.isChooseA) {
tabsList[2]['name'] = this.areas[this.area]['label'];
}
return tabsList;
},
uZIndex() {
// 如果用户有传递z-index值，优先使用
return this.zIndex ? this.zIndex : this.$u.zIndex.popup;
}
},
methods: {
init() {
if (this.areaCode.length == 3) {
this.setProvince("", this.areaCode[0]);
this.setCity("", this.areaCode[1]);
this.setArea("", this.areaCode[2]);
} else if (this.defaultRegion.length == 3) {
this.setProvince(this.defaultRegion[0], "");
this.setCity(this.defaultRegion[1], "");
this.setArea(this.defaultRegion[2], "");
};
},
setProvince(label = "", value = "") {
this.provinces.map((v, k) => {
if (value ? v.value == value : v.label == label) {
this.provinceChange(k);
}
})
},
setCity(label = "", value = "") {
this.citys.map((v, k) => {
if (value ? v.value == value : v.label == label) {
this.cityChange(k);
}
})
},
setArea(label = "", value = "") {
this.areas.map((v, k) => {
if (value ? v.value == value : v.label == label) {
this.isChooseA = true;
this.area = k;
}
})
},
close() {
this.$emit('input', false);
},
tabsChange(index) {
this.tabsIndex = index;
},
provinceChange(index) {
this.isChooseP = true;
this.isChooseC = false;
this.isChooseA = false;
this.province = index;
this.citys = citys[index];
this.tabsIndex = 1;
},
cityChange(index) {
this.isChooseC = true;
this.isChooseA = false;
this.city = index;
this.areas = areas[this.province][index];
this.tabsIndex = 2;
// 只选到市添加以下代码
// let result = {};
// result.province = this.provinces[this.province];
// result.city = this.citys[this.city];
// this.$emit('city-change', result);
// this.close();
},
areaChange(index) {
this.isChooseA = true;
this.area = index;
let result = {};
result.province = this.provinces[this.province];
result.city = this.citys[this.city];
result.area = this.areas[this.area];
this.$emit('city-change', result);
this.close();
}
}
}
</script>
<style lang="scss">
.area-box {
width: 100%;
overflow: hidden;
height: 800rpx;
>view {
width: 150%;
transition: transform 0.3s ease-in-out 0s;
transform: translateX(0);
&.change {
transform: translateX(-33.3333333%);
}
}
.area-item {
width: 33.3333333%;
height: 800rpx;
}
}
</style>