shortterm-picker.vue
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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.dates" :key="index">{{item.label}}</view>
</picker-view-column>
<picker-view-column>
<view class="w-picker-item" v-for="(item,index) in range.hours" :key="index">{{item.label}}时</view>
</picker-view-column>
<picker-view-column>
<view class="w-picker-item" v-for="(item,index) in range.minutes" :key="index">{{item.label}}分</view>
</picker-view-column>
</picker-view>
</view>
</template>
<script>
export default {
data() {
return {
pickVal:[],
range:{},
checkObj:{}
};
},
props:{
itemHeight:{
type:String,
default:"44px"
},
value:{
type:[String,Array,Number],
default:""
},
current:{//是否默认选中当前日期
type:Boolean,
default:false
},
expand:{
type:[Number,String],
default:30
}
},
watch:{
value(val){
this.initData();
}
},
created() {
this.initData();
},
methods:{
formatNum(n){
return (Number(n)<10?'0'+Number(n):Number(n)+'');
},
checkValue(value){
let strReg=/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}(:\d{2})?$/,example="2019-12-12 18:05:00或者2019-12-12 18:05";
if(!strReg.test(value)){
console.log(new Error("请传入与mode、fields匹配的value值,例value="+example+""))
}
return strReg.test(value);
},
resetData(year,month,day){
let curDate=this.getCurrenDate();
let curFlag=this.current;
let curYear=curDate.curYear;
let curMonth=curDate.curMonth;
let curDay=curDate.curDay;
let curHour=curDate.curHour;
let months=[],days=[],sections=[];
let disabledAfter=this.disabledAfter;
let monthsLen=disabledAfter?(year*1<curYear?12:curMonth):12;
let totalDays=new Date(year,month,0).getDate();//计算当月有几天;
for(let month=1;month<=monthsLen;month++){
months.push(this.formatNum(month));
};
for(let day=1;day<=daysLen;day++){
days.push(this.formatNum(day));
}
return{
months,
days,
sections
}
},
getData(dVal){
//用来处理初始化数据
let curFlag=this.current;
let disabledAfter=this.disabledAfter;
let dates=[],hours=[],minutes=[];
let curDate=new Date();
let curYear=curDate.getFullYear();
let curMonth=curDate.getMonth();
let curDay=curDate.getDate();
let aDate=new Date(curYear,curMonth,curDay);
for(let i=0;i<this.expand*1;i++){
aDate=new Date(curYear,curMonth,curDay+i);
let year=aDate.getFullYear();
let month=aDate.getMonth()+1;
let day=aDate.getDate();
let label=year+"-"+this.formatNum(month)+"-"+this.formatNum(day);
switch(i){
case 0:
label="今天";
break;
case 1:
label="明天";
break;
case 2:
label="后天";
break
}
dates.push({
label:label,
value:year+"-"+this.formatNum(month)+"-"+this.formatNum(day)
})
};
for(let i=0;i<24;i++){
hours.push({
label:this.formatNum(i),
value:this.formatNum(i)
})
}
for(let i=0;i<60;i++){
minutes.push({
label:this.formatNum(i),
value:this.formatNum(i)
})
}
return {
dates,
hours,
minutes
}
},
getDefaultDate(){
let value=this.value;
let reg=/-/g;
let defaultDate=value?new Date(value.replace(reg,"/")):new Date();
let defaultYear=defaultDate.getFullYear();
let defaultMonth=defaultDate.getMonth()+1;
let defaultDay=defaultDate.getDate();
let defaultDays=new Date(defaultYear,defaultMonth,0).getDate()*1;
return{
defaultDate,
defaultYear,
defaultMonth,
defaultDay,
defaultDays
}
},
getDval(){
let value=this.value;
let dVal=null;
let aDate=new Date();
let year=this.formatNum(aDate.getFullYear());
let month=this.formatNum(aDate.getMonth()+1);
let day=this.formatNum(aDate.getDate());
let date=this.formatNum(year)+"-"+this.formatNum(month)+"-"+this.formatNum(day);
let hour=aDate.getHours();
let minute=aDate.getMinutes();
if(value){
let flag=this.checkValue(value);
if(!flag){
dVal=[date,hour,minute]
}else{
let v=value.split(" ");
dVal=[v[0],...v[1].split(":")];
}
}else{
dVal=[date,hour,minute]
}
return dVal;
},
initData(){
let startDate,endDate,startYear,endYear,startMonth,endMonth,startDay,endDay;
let dates=[],hours=[],minutes=[];
let dVal=[],pickVal=[];
let value=this.value;
let reg=/-/g;
let range={};
let result="",full="",date,hour,minute,obj={};
let defaultDate=this.getDefaultDate();
let defaultYear=defaultDate.defaultYear;
let defaultMonth=defaultDate.defaultMonth;
let defaultDay=defaultDate.defaultDay;
let defaultDays=defaultDate.defaultDays;
let curFlag=this.current;
let disabledAfter=this.disabledAfter;
let dateData=[];
dVal=this.getDval();
dateData=this.getData(dVal);
dates=dateData.dates;
hours=dateData.hours;
minutes=dateData.minutes;
pickVal=[
dates.findIndex(n => n.value == dVal[0])!=-1?dates.findIndex(n => n.value == dVal[0]):0,
hours.findIndex(n => n.value == dVal[1])!=-1?hours.findIndex(n => n.value == dVal[1]):0,
minutes.findIndex(n => n.value == dVal[2])!=-1?minutes.findIndex(n => n.value == dVal[2]):0,
];
range={dates,hours,minutes};
date=dVal[0]?dVal[0]:dates[0].label;
hour=dVal[1]?dVal[1]:hours[0].label;
minute=dVal[2]?dVal[2]:minutes[0].label;
result=full=`${date+' '+hour+':'+minute}`;
obj={
date,
hour,
minute
}
this.range=range;
this.checkObj=obj;
this.$nextTick(()=>{
this.pickVal=pickVal;
});
this.$emit("change",{
result:result,
value:full,
obj:obj
})
},
handlerChange(e){
let arr=[...e.detail.value];
let data=this.range;
let date="",hour="",minute="";
let result="",full="",obj={};
let disabledAfter=this.disabledAfter;
date=(arr[0]||arr[0]==0)?data.dates[arr[0]]||data.dates[data.dates.length-1]:"";
hour=(arr[1]||arr[1]==0)?data.hours[arr[1]]||data.hours[data.hours.length-1]:"";
minute=(arr[2]||arr[2]==0)?data.minutes[arr[2]]||data.minutes[data.minutes.length-1]:"";
result=full=`${date.label+' '+hour.label+':'+minute.label+':00'}`;
obj={
date,
hour,
minute
}
this.checkObj=obj;
this.$emit("change",{
result:result,
value:full,
obj:obj
})
}
}
}
</script>
<style lang="scss">
@import "./w-picker.css";
</style>