图示

思路

当派工单这个输入框获取到焦点后，弹出弹出层选择数据。

1、定义这个输入框

<view class="cu-form-group"><view class="title"><text class="text-red">*</text>派工单号: </view><input type="text" v-model="DispatchTicketNumber" @focus="xuanzepgd" class="is-required"placeholder=" 请选择派工单号" /><uni-popup ref="popup"><div><ul><li v-for="(item,index) of DispatchTicketNumberList" :key="index"  @click="selectItem(item)">{{item.DocNo }}</li></ul></div></uni-popup></view>

2、当获取到焦点时，调用接口获取数据，这里参数我自己写死了

//派工单输入框获取焦点xuanzepgd() {console.log('输入框获取到了焦点')this.$refs['popup'].open(),//调用接口获取派工单号uni.request({url: dtnApi,method: 'POST',header: {'Content-Type': 'application/json'},data: {context: {CultureName: "zh-CN",EntCode: "001",OrgCode: "MK",UserCode: "admin"},inDTO: [{Work: '焊接',Name: 'BP_11/2X6000MM_B80G23B01_HG',Bm: '焊管一车间',Mo: ''}]},			    	success: (res) => {console.log("结果集");console.log(res); //res是返回结果集const DispatchTicketNumberList = res.data.d.map(item => ({...item,selected: false, // 在这里添加一个 selected 属性，初始值为 false}));this.DispatchTicketNumberList = DispatchTicketNumberList;},fail: (res) => {uni.showToast({title: res.errMsg,icon: 'none',duration: 2000,})},})},

3、弹出框选择赋值给输入框

/弹出框赋值派工单号selectItem(item) {// 更新选中状态this.DispatchTicketNumberList = this.DispatchTicketNumberList.map(i => {i.selected = i.DocNo === item;return i;});// 将所选值赋值给文本框this.DispatchTicketNumber = item.DocNo;console.log("所选值")console.log(this.DispatchTicketNumber)// 关闭弹窗this.$refs['popup'].close();},