<template>
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<u-popup mode="center" :show="visible" @close="close" :round="10" :safeAreaInsetTop="true" :safeAreaInsetBottom="true">
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<view class="picker-box" :style="{maxHeight:maxHeight+'px'}">
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<view class="picker-item-group">
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<view class="picker-item auto-wrap" v-for="(item,index) in list" :key="'picker-item-'+index" @tap.stop="onItemClick(index,item)">
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{{(typeof(item)==='string'||typeof(item)==='number'||typeof(item)==='boolean'||item===null)?item:item[labelField]}}
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</view>
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</view>
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</view>
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</u-popup>
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</template>
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<script>
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const MAX_HEIGHT = 500
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export default {
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name:'easyPickerCompontent',
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emits:['update:visible','select'],
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props:{
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visible:{
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type:Boolean,
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default:false
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},
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list:{
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type:Array,
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default:function(){
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return []
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}
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},
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valueField:{
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type:String,
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default:'value'
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},
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labelField:{
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type:String,
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default:'label'
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}
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},
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data(){
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return {
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maxHeight:MAX_HEIGHT
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}
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},
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methods:{
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close(){
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this.$emit('update:visible',false)
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},
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onItemClick(index,selection){
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let valObj = selection;
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let val;
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if (typeof selection === 'string' || typeof selection === 'number'||typeof(selection)==='boolean'||selection===null) {
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val = selection;
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} else {
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try{
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val = selection[this.valueField];
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}catch(e){
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val = selection;
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}
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}
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this.close()
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this.$emit('select',val,valObj,index)
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},
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setMaxHeight(calHeight) {
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const spaceHeight = 10
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if (calHeight>spaceHeight) {
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calHeight = calHeight - spaceHeight
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this.maxHeight = calHeight
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}
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}
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},
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beforeMount(){
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let safety = this.$store.getters['system/getSafety'];
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if (safety) {
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this.setMaxHeight(safety.height)
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} else {
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uni.getSystemInfo({
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success:(res=>{
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if (!res.safeAreaInsets) res.safeArea = {}
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this.setMaxHeight(res.safeArea.height || 0)
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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 scoped lang="scss">
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.picker-box{
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width: 80vw;
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background-color:#f0f8ff;
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border-radius: 20rpx;
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padding-top: 30rpx;
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overflow: auto;
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display: flex;
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justify-content: center;
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box-sizing: border-box;
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.picker-item-group{
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width: 80%;
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}
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.picker-item{
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margin: 0 20rpx 30rpx 20rpx;
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text-align: center;
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background-image: linear-gradient(to right, $color-paimary-darken, $color-paimary-lighten);
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border: 1px solid #e4e4e4;
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border-radius: 10rpx;
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font-size: 1.2rem;
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padding: 20rpx;
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}
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}
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</style>
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