523 lines
18 KiB
Vue
523 lines
18 KiB
Vue
<template>
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<uni-popup
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ref="popup"
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type="bottom"
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borderRadius="10px 10px 0 0"
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background-color="#FFFFFF"
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:mask-click="maskClick"
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>
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<view class="popup-content">
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<view class="popup-header">
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<view class="btn-cancel" @click="cancel">取消</view>
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<view class="title">{{ title }}</view>
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<view class="btn-confirm" @click="confirm">确认</view>
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</view>
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<view class="popup-list">
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<picker-view
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indicator-style="height: 84rpx;"
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:value="selectedIndex"
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@change="bindChange"
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class="picker-view"
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>
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<!-- 省 -->
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<picker-view-column>
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<view
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v-for="(item, index) in provinceList"
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:key="item.code"
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class="item"
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:class="{ 'item-active': selectedIndex[0] === index }"
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>
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<text>{{ item.name }}</text>
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</view>
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</picker-view-column>
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<!-- 市 -->
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<picker-view-column>
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<view
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v-for="(item, index) in cityList"
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:key="item.code"
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class="item"
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:class="{ 'item-active': selectedIndex[1] === index }"
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>
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<text>{{ item.name }}</text>
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</view>
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</picker-view-column>
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<!-- 区县 -->
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<picker-view-column>
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<view
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v-for="(item, index) in districtList"
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:key="item.code"
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class="item"
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:class="{ 'item-active': selectedIndex[2] === index }"
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>
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<text>{{ item.name }}</text>
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</view>
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</picker-view-column>
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<!-- 街道 -->
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<picker-view-column>
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<view
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v-for="(item, index) in streetList"
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:key="item.code"
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class="item"
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:class="{ 'item-active': selectedIndex[3] === index }"
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>
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<text>{{ item.name }}</text>
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</view>
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</picker-view-column>
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<!-- 社区/居委会 -->
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<picker-view-column>
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<view
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v-for="(item, index) in communityList"
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:key="item.code"
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class="item"
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:class="{ 'item-active': selectedIndex[4] === index }"
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>
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<text>{{ item.name }}</text>
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</view>
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</picker-view-column>
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</picker-view>
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</view>
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</view>
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</uni-popup>
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</template>
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<script>
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import addressDataLoaderLazy from '@/utils/addressDataLoaderLazy.js';
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export default {
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name: 'AreaCascadePicker',
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data() {
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return {
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maskClick: false,
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title: '选择地址',
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confirmCallback: null,
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cancelCallback: null,
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changeCallback: null,
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selectedIndex: [0, 0, 0, 0, 0],
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// 原始数据（懒加载模式下，只存储省份列表）
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areaData: [],
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// 各级列表
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provinceList: [],
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cityList: [],
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districtList: [],
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streetList: [],
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communityList: [],
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// 当前选中的项
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selectedProvince: null,
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selectedCity: null,
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selectedDistrict: null,
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selectedStreet: null,
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selectedCommunity: null,
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// 加载状态
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isLoading: false,
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// 懒加载模式：已加载的省份详情缓存
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loadedProvinceDetails: new Map(),
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};
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},
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methods: {
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async open(newConfig = {}) {
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const {
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title,
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success,
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cancel,
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change,
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maskClick = false,
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defaultValue = null,
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forceRefresh = false, // 是否强制刷新数据
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} = newConfig;
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this.reset();
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if (title) this.title = title;
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if (typeof success === 'function') this.confirmCallback = success;
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if (typeof cancel === 'function') this.cancelCallback = cancel;
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if (typeof change === 'function') this.changeCallback = change;
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this.maskClick = maskClick;
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// 加载地区数据
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this.isLoading = true;
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try {
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await this.loadAreaData(forceRefresh);
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// 初始化列表
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this.initLists();
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this.$nextTick(() => {
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this.$refs.popup.open();
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});
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} catch (error) {
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console.error('打开地址选择器失败:', error);
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uni.showToast({
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title: '加载地址数据失败',
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icon: 'none',
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duration: 2000
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});
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} finally {
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this.isLoading = false;
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}
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},
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async loadAreaData(forceRefresh = false) {
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try {
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console.log('正在加载省份列表（懒加载模式）...');
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// 优先尝试调用后端API获取省份列表
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// const resp = await uni.request({
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// url: '/app/common/area/provinces',
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// method: 'GET'
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// });
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// if (resp.statusCode === 200 && resp.data && resp.data.data) {
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// this.areaData = resp.data.data;
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// return;
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// }
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// 使用懒加载器：只加载省份列表（数据量很小，< 1MB）
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const provinceList = await addressDataLoaderLazy.loadProvinceList(forceRefresh);
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if (provinceList && Array.isArray(provinceList)) {
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this.areaData = provinceList;
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} else {
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console.warn('省份列表格式不正确，使用空数据');
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this.areaData = [];
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}
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} catch (error) {
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console.error('加载省份列表失败:', error);
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this.areaData = [];
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throw error;
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}
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},
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initLists() {
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// 初始化省列表
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this.provinceList = this.areaData;
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if (this.provinceList.length > 0) {
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this.selectedProvince = this.provinceList[0];
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// 懒加载：首次选择第一个省份时，加载其详情
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this.updateCityList();
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}
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},
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async updateCityList() {
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if (!this.selectedProvince) {
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this.cityList = [];
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this.districtList = [];
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this.streetList = [];
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this.communityList = [];
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return;
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}
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// 检查是否已加载该省份的详情
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let provinceDetail = this.loadedProvinceDetails.get(this.selectedProvince.code);
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// 如果未加载，则懒加载该省份的详情
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if (!provinceDetail) {
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try {
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console.log(`📥 懒加载省份详情: ${this.selectedProvince.name} (${this.selectedProvince.code})`);
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provinceDetail = await addressDataLoaderLazy.loadProvinceDetail(
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this.selectedProvince.code,
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false
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);
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if (provinceDetail) {
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// 缓存已加载的省份详情
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this.loadedProvinceDetails.set(this.selectedProvince.code, provinceDetail);
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// 更新省份对象，添加children
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Object.assign(this.selectedProvince, {
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children: provinceDetail.children || []
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});
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}
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} catch (error) {
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console.error('加载省份详情失败:', error);
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// 如果加载失败，检查是否有 _hasChildren 标记
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if (this.selectedProvince._hasChildren) {
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uni.showToast({
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title: '加载城市数据失败，请重试',
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icon: 'none',
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duration: 2000
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});
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}
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this.cityList = [];
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this.districtList = [];
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this.streetList = [];
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this.communityList = [];
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return;
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}
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} else {
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// 如果已加载，直接使用缓存的详情
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Object.assign(this.selectedProvince, {
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children: provinceDetail.children || []
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});
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}
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// 更新城市列表
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if (!this.selectedProvince.children || this.selectedProvince.children.length === 0) {
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this.cityList = [];
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this.districtList = [];
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this.streetList = [];
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this.communityList = [];
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return;
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}
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this.cityList = this.selectedProvince.children;
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this.selectedIndex[1] = 0;
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if (this.cityList.length > 0) {
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this.selectedCity = this.cityList[0];
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this.updateDistrictList();
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}
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},
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updateDistrictList() {
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if (!this.selectedCity || !this.selectedCity.children) {
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this.districtList = [];
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this.streetList = [];
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this.communityList = [];
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return;
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}
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this.districtList = this.selectedCity.children;
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this.selectedIndex[2] = 0;
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if (this.districtList.length > 0) {
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this.selectedDistrict = this.districtList[0];
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this.updateStreetList();
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}
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},
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updateStreetList() {
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if (!this.selectedDistrict || !this.selectedDistrict.children) {
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this.streetList = [];
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this.communityList = [];
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return;
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}
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this.streetList = this.selectedDistrict.children;
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this.selectedIndex[3] = 0;
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if (this.streetList.length > 0) {
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this.selectedStreet = this.streetList[0];
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this.updateCommunityList();
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}
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},
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updateCommunityList() {
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if (!this.selectedStreet || !this.selectedStreet.children) {
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this.communityList = [];
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return;
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}
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this.communityList = this.selectedStreet.children;
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this.selectedIndex[4] = 0;
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if (this.communityList.length > 0) {
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this.selectedCommunity = this.communityList[0];
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}
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},
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async bindChange(e) {
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const newIndex = e.detail.value;
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// 检查哪一列发生了变化
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for (let i = 0; i < 5; i++) {
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if (newIndex[i] !== this.selectedIndex[i]) {
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this.selectedIndex[i] = newIndex[i];
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// 根据变化的列更新后续列
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if (i === 0) {
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// 省变化 - 需要懒加载新省份的详情
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this.selectedProvince = this.provinceList[newIndex[0]];
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await this.updateCityList(); // 改为异步
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} else if (i === 1) {
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// 市变化
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this.selectedCity = this.cityList[newIndex[1]];
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this.updateDistrictList();
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} else if (i === 2) {
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// 区县变化
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this.selectedDistrict = this.districtList[newIndex[2]];
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this.updateStreetList();
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} else if (i === 3) {
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// 街道变化
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this.selectedStreet = this.streetList[newIndex[3]];
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this.updateCommunityList();
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} else if (i === 4) {
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// 社区变化
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this.selectedCommunity = this.communityList[newIndex[4]];
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}
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break;
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}
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}
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if (this.changeCallback) {
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this.changeCallback(this.getSelectedAddress());
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}
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},
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getSelectedAddress() {
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const parts = [];
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if (this.selectedProvince) parts.push(this.selectedProvince.name);
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if (this.selectedCity) parts.push(this.selectedCity.name);
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if (this.selectedDistrict) parts.push(this.selectedDistrict.name);
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if (this.selectedStreet) parts.push(this.selectedStreet.name);
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if (this.selectedCommunity) parts.push(this.selectedCommunity.name);
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return {
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address: parts.join('/'),
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province: this.selectedProvince,
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city: this.selectedCity,
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district: this.selectedDistrict,
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street: this.selectedStreet,
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community: this.selectedCommunity,
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};
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},
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close() {
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this.$refs.popup.close();
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},
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cancel() {
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this.clickCallback(this.cancelCallback);
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},
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confirm() {
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this.clickCallback(this.confirmCallback);
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},
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async clickCallback(callback) {
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if (typeof callback !== 'function') {
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this.$refs.popup.close();
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return;
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}
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try {
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const result = await callback(this.getSelectedAddress());
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if (result !== false) {
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this.$refs.popup.close();
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}
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} catch (error) {
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console.error('callback 执行出错:', error);
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}
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},
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reset() {
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this.maskClick = false;
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this.confirmCallback = null;
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this.cancelCallback = null;
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this.changeCallback = null;
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this.selectedIndex = [0, 0, 0, 0, 0];
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this.provinceList = [];
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this.cityList = [];
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this.districtList = [];
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this.streetList = [];
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this.communityList = [];
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},
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/**
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* 清除地址数据缓存（供外部调用）
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*/
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async clearCache() {
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try {
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await addressDataLoaderLazy.clearCache();
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// 同时清除内存缓存
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this.loadedProvinceDetails.clear();
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uni.showToast({
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title: '缓存已清除',
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icon: 'success',
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duration: 2000
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});
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} catch (error) {
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console.error('清除缓存失败:', error);
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uni.showToast({
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title: '清除缓存失败',
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icon: 'none',
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duration: 2000
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});
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}
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}
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},
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};
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</script>
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<style lang="scss" scoped>
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.popup-content {
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color: #000000;
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height: 60vh;
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}
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.popup-list {
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display: flex;
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flex-direction: row;
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flex-wrap: nowrap;
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align-items: center;
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justify-content: space-evenly;
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flex: 1;
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overflow: hidden;
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.picker-view {
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width: 100%;
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height: calc(60vh - 100rpx);
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margin-top: 20rpx;
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.uni-picker-view-mask {
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background: rgba(0, 0, 0, 0);
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}
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.item {
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line-height: 84rpx;
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height: 84rpx;
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text-align: center;
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font-weight: 400;
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font-size: 28rpx;
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color: #cccccc;
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padding: 0 4rpx;
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overflow: hidden;
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text-overflow: ellipsis;
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white-space: nowrap;
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}
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.item-active {
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color: #333333;
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font-weight: 500;
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}
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.uni-picker-view-indicator:after {
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border-color: #e3e3e3;
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}
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.uni-picker-view-indicator:before {
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border-color: #e3e3e3;
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}
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}
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}
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.popup-header {
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display: flex;
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justify-content: space-between;
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align-items: center;
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padding: 40rpx 40rpx 10rpx 40rpx;
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.title {
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font-weight: 500;
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font-size: 36rpx;
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color: #333333;
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text-align: center;
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}
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.btn-cancel {
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font-weight: 400;
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font-size: 32rpx;
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color: #666d7f;
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line-height: 38rpx;
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}
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.btn-confirm {
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font-weight: 400;
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font-size: 32rpx;
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color: #256bfa;
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}
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}
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</style>
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