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| <template>
| <view class="w-picker-view">
| <picker-view class="d-picker-view" :indicator-style="itemHeight" :value="pickVal" @change="handlerChange">
| <picker-view-column>
| <view class="w-picker-item" v-for="(item,index) in range" :key="index">{{item[nodeKey]}}</view>
| </picker-view-column>
| </picker-view>
| </view>
| </template>
|
| <script>
| export default {
| props:{
| itemHeight:{
| type:String,
| default:"44px"
| },
| options:{
| type:[Array,Object],
| default(){
| return []
| }
| },
| value:{
| type:String,
| default:""
| },
| defaultType:{
| type:String,
| default:"label"
| },
| defaultProps:{
| type:Object,
| default(){
| return{
| label:"label",
| value:"value"
| }
| }
| }
| },
| data() {
| return {
| pickVal:[]
| };
| },
| computed:{
| nodeKey(){
| return this.defaultProps.label;
| },
| nodeValue(){
| return this.defaultProps.value;
| },
| range(){
| return this.options
| }
| },
| watch:{
| value(val){
| if(this.options.length!=0){
| this.initData();
| }
| },
| options(val){
| this.initData();
| }
| },
| created() {
| if(this.options.length!=0){
| this.initData();
| }
| },
| methods:{
| initData(){
| let dVal=this.value||"";
| let data=this.range;
| let pickVal=[0];
| let cur=null;
| let label="";
| let value,idx;
| if(this.defaultType==this.nodeValue){
| value=data.find((v)=>v[this.nodeValue]==dVal);
| idx=data.findIndex((v)=>v[this.nodeValue]==dVal);
| }else{
| value=data.find((v)=>v[this.nodeKey]==dVal);
| idx=data.findIndex((v)=>v[this.nodeKey]==dVal);
| }
| pickVal=[idx!=-1?idx:0];
| this.$nextTick(()=>{
| this.pickVal=pickVal;
| });
| if(this.defaultType==this.nodeValue){
| this.$emit("change",{
| result:value?value[this.nodeKey]:data[0][this.nodeKey],
| value:dVal||data[0][this.nodeKey],
| obj:value?value:data[0]
| })
| }else{
| this.$emit("change",{
| result:dVal||data[0][this.nodeKey],
| value:value?value[this.nodeValue]:data[0][this.nodeValue],
| obj:value?value:data[0]
| })
| }
|
| },
| handlerChange(e){
| let arr=[...e.detail.value];
| let pickVal=[arr[0]||0];
| let data=this.range;
| let cur=data[arr[0]];
| let label="";
| let value="";
| this.$nextTick(()=>{
| this.pickVal=pickVal;
| });
| this.$emit("change",{
| result:cur[this.nodeKey],
| value:cur[this.nodeValue],
| obj:cur
| })
| }
| }
| }
| </script>
|
| <style lang="scss">
| @import "./w-picker.css";
| </style>
|
|
