de

components/pickerAddress/pickerAddress.vue

+<template>
+	<picker @change="bindPickerChange" @columnchange="columnchange" :range="array" range-key="name" :value="value" mode="multiSelector">
+		<slot></slot>
+	</picker>
+</template>
+
+<script>
+	import AllAddress from './data.js'
+	let selectVal = ['','','']
+	
+	export default {
+		data() {
+			return{
+				value: [0,0,0],
+				array: [],
+				index: 0
+			}
+		},
+		created() {
+			this.initSelect()
+		},
+		methods:{
+			// 初始化地址选项
+			initSelect() {
+				this.updateSourceDate() // 更新源数据
+				.updateAddressDate() // 更新结果数据
+				.$forceUpdate()  // 触发双向绑定
+			},
+			// 地址控件改变控件
+			columnchange(d) {
+				this.updateSelectIndex(d.detail.column, d.detail.value) // 更新选择索引
+				.updateSourceDate() // 更新源数据
+				.updateAddressDate() // 更新结果数据
+				.$forceUpdate()  // 触发双向绑定
+			},
+			
+			/**
+			 * 更新源数据
+			 * */
+			updateSourceDate() {
+				this.array = []
+				this.array[0] = AllAddress.map(obj => {
+					return {
+						name: obj.name
+					}
+				})
+				this.array[1] = AllAddress[this.value[0]].city.map(obj => {
+					return {
+						name: obj.name
+					}
+				})
+				this.array[2] = AllAddress[this.value[0]].city[this.value[1]].area.map(obj => { 
+					return {
+						name: obj
+					}
+				})
+				return this
+			},
+			
+			/**
+			 * 更新索引
+			 * */
+			updateSelectIndex(column, value){
+				let arr = JSON.parse(JSON.stringify(this.value)) 
+				arr[column] = value
+				if(column === 0 ) {
+					arr[1] = 0
+					arr[2] = 0
+				}
+				if(column === 1 ) {
+					arr[2] = 0
+				}
+				this.value = arr
+				return this
+			},
+			
+			/**
+			 * 更新结果数据 
+			 * */
+			updateAddressDate() {
+				selectVal[0] = this.array[0][this.value[0]].name
+				selectVal[1] = this.array[1][this.value[1]].name 
+				selectVal[2] = this.array[2][this.value[2]].name 
+				return this
+			},
+			
+			/**
+			 * 点击确定
+			 * */
+			bindPickerChange(e) {
+				this.$emit('change', {
+					index: this.value,
+					data: selectVal
+				})
+				return this
+			}
+			
+		}
+	}
+</script>
+
+<style>
+</style>