<template>
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<div class="mpvue-picker">
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<div :class="{'pickerMask':showPicker}" @click="maskClick" catchtouchmove="true"></div>
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<div class="mpvue-picker-content " :class="{'mpvue-picker-view-show':showPicker}">
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<div class="mpvue-picker__hd" catchtouchmove="true">
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<div class="mpvue-picker__action" @click="pickerCancel">取消</div>
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<div class="mpvue-picker__action" :style="{color:themeColor}" @click="pickerConfirm">确定</div>
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</div>
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<picker-view indicator-style="height: 40px;" class="mpvue-picker-view" :value="pickerValue"
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@change="pickerChange">
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<block>
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<picker-view-column>
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<div class="picker-item" v-for="(item,index) in provinceDataList" :key="index">{{item.label}}
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</div>
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</picker-view-column>
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<picker-view-column>
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<div class="picker-item" v-for="(item,index) in cityDataList" :key="index">{{item.label}}</div>
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</picker-view-column>
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<picker-view-column>
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<div class="picker-item" v-for="(item,index) in areaDataList" :key="index">{{item.label}}</div>
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</picker-view-column>
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</block>
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</picker-view>
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</div>
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</div>
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</template>
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<script>
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export default {
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data() {
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return {
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pickerValue: [0, 0, 0],
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provinceDataList: [],
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cityDataList: [],
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areaDataList: [],
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/* 是否显示控件 */
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showPicker: false,
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provinceData: [],
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cityData: [],
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areaData: []
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};
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},
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created() {
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this.init()
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},
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props: {
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/* 默认值 */
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pickerValueDefault: {
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type: Array,
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default () {
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return [0, 0, 0]
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}
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},
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/* 主题色 */
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themeColor: String,
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province: {
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type: Array
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},
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city: {
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type: Array
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},
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area: {
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type: Array
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}
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},
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watch: {
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pickerValueDefault() {
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this.init();
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}
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},
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methods: {
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init() {
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this.provinceData = this.province;
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this.cityData = this.city;
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this.areaData = this.area;
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this.handPickValueDefault(); // 对 pickerValueDefault 做兼容处理
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this.provinceDataList = this.provinceData;
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this.cityDataList = this.cityData[this.pickerValueDefault[0]];
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this.areaDataList = this.areaData[this.pickerValueDefault[0]][this.pickerValueDefault[1]];
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this.pickerValue = this.pickerValueDefault;
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},
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show() {
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setTimeout(() => {
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this.showPicker = true;
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}, 0);
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},
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maskClick() {
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//this.pickerCancel();
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},
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pickerCancel() {
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this.showPicker = false;
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this._$emit('onCancel');
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},
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pickerConfirm(e) {
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this.showPicker = false;
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this._$emit('onConfirm');
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},
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showPickerView() {
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this.showPicker = true;
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},
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handPickValueDefault() {
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if (this.pickerValueDefault !== [0, 0, 0]) {
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if (this.pickerValueDefault[0] > this.provinceData.length - 1) {
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this.pickerValueDefault[0] = this.provinceData.length - 1;
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}
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if (this.pickerValueDefault[1] > this.cityData[this.pickerValueDefault[0]].length - 1) {
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this.pickerValueDefault[1] = this.cityData[this.pickerValueDefault[0]].length - 1;
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}
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if (this.pickerValueDefault[2] > this.areaData[this.pickerValueDefault[0]][this.pickerValueDefault[1]]
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.length - 1) {
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this.pickerValueDefault[2] = this.areaData[this.pickerValueDefault[0]][this.pickerValueDefault[1]]
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.length - 1;
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}
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}
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},
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pickerChange(e) {
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let changePickerValue = e.mp.detail.value;
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if (this.pickerValue[0] !== changePickerValue[0]) {
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// 第一级发生滚动
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this.cityDataList = this.cityData[changePickerValue[0]];
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this.areaDataList = this.areaData[changePickerValue[0]][0];
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changePickerValue[1] = 0;
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changePickerValue[2] = 0;
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} else if (this.pickerValue[1] !== changePickerValue[1]) {
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// 第二级滚动
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this.areaDataList =
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this.areaData[changePickerValue[0]][changePickerValue[1]];
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changePickerValue[2] = 0;
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}
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this.pickerValue = changePickerValue;
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this._$emit('onChange');
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},
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_$emit(emitName) {
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let pickObj = {
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label: this._getLabel(),
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value: this.pickerValue,
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cityCode: this._getCityCode()
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};
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this.$emit(emitName, pickObj);
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},
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_getLabel() {
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let pcikerLabel =
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this.provinceDataList[this.pickerValue[0]].label +
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',' +
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this.cityDataList[this.pickerValue[1]].label +
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',' +
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this.areaDataList[this.pickerValue[2]].label;
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return pcikerLabel;
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},
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_getCityCode() {
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let pcikerCode = [0, 0, 0];
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pcikerCode[0] = this.provinceDataList[this.pickerValue[0]].value;
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pcikerCode[1] = this.cityDataList[this.pickerValue[1]].value;
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pcikerCode[2] = this.areaDataList[this.pickerValue[2]].value;
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return pcikerCode;
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}
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}
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};
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</script>
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<style>
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.pickerMask {
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position: fixed;
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z-index: 1000;
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top: 0;
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right: 0;
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left: 0;
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bottom: 0;
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background: rgba(0, 0, 0, 0.6);
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}
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.mpvue-picker-content {
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position: fixed;
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bottom: 0;
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left: 0;
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width: 100%;
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transition: all 0.3s ease;
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transform: translateY(100%);
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z-index: 3000;
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}
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.mpvue-picker-view-show {
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transform: translateY(0);
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}
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.mpvue-picker__hd {
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display: flex;
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padding: 9px 15px;
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background-color: #fff;
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position: relative;
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text-align: center;
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font-size: 17px;
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}
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.mpvue-picker__hd:after {
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content: ' ';
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position: absolute;
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left: 0;
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bottom: 0;
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right: 0;
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height: 1px;
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border-bottom: 1px solid #e5e5e5;
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color: #e5e5e5;
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transform-origin: 0 100%;
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transform: scaleY(0.5);
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}
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.mpvue-picker__action {
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display: block;
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flex: 1;
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color: #1aad19;
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}
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.mpvue-picker__action:first-child {
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text-align: left;
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color: #888;
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}
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.mpvue-picker__action:last-child {
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text-align: right;
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}
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.picker-item {
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text-align: center;
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line-height: 40px;
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text-overflow: ellipsis;
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white-space: nowrap;
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font-size: 16px;
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}
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.mpvue-picker-view {
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position: relative;
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bottom: 0;
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left: 0;
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width: 100%;
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height: 238px;
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background-color: rgba(255, 255, 255, 1);
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}
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</style>
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