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<template>
<view class="mpvue-picker">
<view :class="{'pickerMask':showPicker}" @click="maskClick" catchtouchmove="true"></view>
<view class="mpvue-picker-content " :class="{'mpvue-picker-view-show':showPicker}">
<view class="mpvue-picker__hd" catchtouchmove="true">
<view class="mpvue-picker__action" @click="pickerCancel">取消</view>
<view class="mpvue-picker__action" :style="{color:themeColor}" @click="pickerConfirm">确定</view>
</view>
<!-- 单列 -->
<picker-view indicator-style="height: 40px;" class="mpvue-picker-view" :value="pickerValue"
@change="pickerChange" v-if="mode==='selector' && pickerValueSingleArray.length > 0">
<picker-view-column>
<view class="picker-item" v-for="(item,index) in pickerValueSingleArray" :key="index">{{item.label}}
</view>
</picker-view-column>
</picker-view>
<!-- 时间选择器 -->
<picker-view indicator-style="height: 40px;" class="mpvue-picker-view" :value="pickerValue"
@change="pickerChange" v-if="mode==='timeSelector'">
<picker-view-column>
<view class="picker-item" v-for="(item,index) in pickerValueHour" :key="index">{{item.label}}</view>
</picker-view-column>
<picker-view-column>
<view class="picker-item" v-for="(item,index) in pickerValueMinute" :key="index">{{item.label}}
</view>
</picker-view-column>
</picker-view>
<!-- 多列选择 -->
<picker-view indicator-style="height: 40px;" class="mpvue-picker-view" :value="pickerValue"
@change="pickerChange" v-if="mode==='multiSelector'">
<!-- #ifdef VUE3 -->
<template v-for="(n,index) in pickerValueMulArray.length" :key="index">
<picker-view-column>
<view class="picker-item" v-for="(item,index1) in pickerValueMulArray[n]" :key="index1">
{{item.label}}
</view>
</picker-view-column>
</template>
<!-- #endif -->
<!-- #ifndef VUE3 -->
<block v-for="(n,index) in pickerValueMulArray.length" :key="index">
<picker-view-column>
<view class="picker-item" v-for="(item,index1) in pickerValueMulArray[n]" :key="index1">
{{item.label}}
</view>
</picker-view-column>
</block>
<!-- #endif -->
</picker-view>
<!-- 二级联动 -->
<picker-view indicator-style="height: 40px;" class="mpvue-picker-view" :value="pickerValue"
@change="pickerChangeMul" v-if="mode==='multiLinkageSelector' && deepLength===2">
<picker-view-column>
<view class="picker-item" v-for="(item,index) in pickerValueMulTwoOne" :key="index">{{item.label}}
</view>
</picker-view-column>
<picker-view-column>
<view class="picker-item" v-for="(item,index) in pickerValueMulTwoTwo" :key="index">{{item.label}}
</view>
</picker-view-column>
</picker-view>
<!-- 三级联动 -->
<picker-view indicator-style="height: 40px;" class="mpvue-picker-view" :value="pickerValue"
@change="pickerChangeMul" v-if="mode==='multiLinkageSelector' && deepLength===3">
<picker-view-column>
<view class="picker-item" v-for="(item,index) in pickerValueMulThreeOne" :key="index">{{item.label}}
</view>
</picker-view-column>
<picker-view-column>
<view class="picker-item" v-for="(item,index) in pickerValueMulThreeTwo" :key="index">{{item.label}}
</view>
</picker-view-column>
<picker-view-column>
<view class="picker-item" v-for="(item,index) in pickerValueMulThreeThree" :key="index">
{{item.label}}
</view>
</picker-view-column>
</picker-view>
</view>
</view>
</template>
<script>
export default {
data() {
return {
pickerChangeValue: [],
pickerValue: [],
pickerValueArrayChange: true,
modeChange: false,
pickerValueSingleArray: [],
pickerValueHour: [],
pickerValueMinute: [],
pickerValueMulArray: [],
pickerValueMulTwoOne: [],
pickerValueMulTwoTwo: [],
pickerValueMulThreeOne: [],
pickerValueMulThreeTwo: [],
pickerValueMulThreeThree: [],
/* 是否显示控件 */
showPicker: false,
};
},
props: {
/* mode */
mode: {
type: String,
default: 'selector'
},
/* picker 数值 */
pickerValueArray: {
type: Array,
default () {
return []
}
},
/* 默认值 */
pickerValueDefault: {
type: Array,
default () {
return []
}
},
/* 几级联动 */
deepLength: {
type: Number,
default: 2
},
/* 主题色 */
themeColor: String
},
watch: {
pickerValueArray(oldVal, newVal) {
this.pickerValueArrayChange = true;
},
mode(oldVal, newVal) {
this.modeChange = true;
},
pickerValueArray(val) {
this.initPicker(val);
}
},
methods: {
initPicker(valueArray) {
let pickerValueArray = valueArray;
this.pickerValue = this.pickerValueDefault;
// 初始化多级联动
if (this.mode === 'selector') {
this.pickerValueSingleArray = valueArray;
} else if (this.mode === 'timeSelector') {
this.modeChange = false;
let hourArray = [];
let minuteArray = [];
for (let i = 0; i < 24; i++) {
hourArray.push({
value: i,
label: i > 9 ? `${i}` : `0${i}`
});
}
for (let i = 0; i < 60; i++) {
minuteArray.push({
value: i,
label: i > 9 ? `${i}` : `0${i}`
});
}
this.pickerValueHour = hourArray;
this.pickerValueMinute = minuteArray;
} else if (this.mode === 'multiSelector') {
this.pickerValueMulArray = valueArray;
} else if (this.mode === 'multiLinkageSelector' && this.deepLength === 2) {
// 两级联动
let pickerValueMulTwoOne = [];
let pickerValueMulTwoTwo = [];
// 第一列
for (let i = 0, length = pickerValueArray.length; i < length; i++) {
pickerValueMulTwoOne.push(pickerValueArray[i]);
}
// 渲染第二列
// 如果有设定的默认值
if (this.pickerValueDefault.length === 2) {
let num = this.pickerValueDefault[0];
for (
let i = 0, length = pickerValueArray[num].children.length; i < length; i++
) {
pickerValueMulTwoTwo.push(pickerValueArray[num].children[i]);
}
} else {
for (
let i = 0, length = pickerValueArray[0].children.length; i < length; i++
) {
pickerValueMulTwoTwo.push(pickerValueArray[0].children[i]);
}
}
this.pickerValueMulTwoOne = pickerValueMulTwoOne;
this.pickerValueMulTwoTwo = pickerValueMulTwoTwo;
} else if (
this.mode === 'multiLinkageSelector' &&
this.deepLength === 3
) {
let pickerValueMulThreeOne = [];
let pickerValueMulThreeTwo = [];
let pickerValueMulThreeThree = [];
// 第一列
for (let i = 0, length = pickerValueArray.length; i < length; i++) {
pickerValueMulThreeOne.push(pickerValueArray[i]);
}
// 渲染第二列
this.pickerValueDefault =
this.pickerValueDefault.length === 3 ?
this.pickerValueDefault : [0, 0, 0];
if (this.pickerValueDefault.length === 3) {
let num = this.pickerValueDefault[0];
for (
let i = 0, length = pickerValueArray[num].children.length; i < length; i++
) {
pickerValueMulThreeTwo.push(pickerValueArray[num].children[i]);
}
// 第三列
let numSecond = this.pickerValueDefault[1];
for (let i = 0, length = pickerValueArray[num].children[numSecond].children.length; i <
length; i++) {
pickerValueMulThreeThree.push(
pickerValueArray[num].children[numSecond].children[i]
);
}
}
this.pickerValueMulThreeOne = pickerValueMulThreeOne;
this.pickerValueMulThreeTwo = pickerValueMulThreeTwo;
this.pickerValueMulThreeThree = pickerValueMulThreeThree;
}
},
show() {
setTimeout(() => {
if (this.pickerValueArrayChange || this.modeChange) {
this.initPicker(this.pickerValueArray);
this.showPicker = true;
this.pickerValueArrayChange = false;
this.modeChange = false;
} else {
this.showPicker = true;
}
}, 0);
},
maskClick() {
this.pickerCancel();
},
pickerCancel() {
this.showPicker = false;
this._initPickerVale();
let pickObj = {
index: this.pickerValue,
value: this._getPickerLabelAndValue(this.pickerValue, this.mode).value,
label: this._getPickerLabelAndValue(this.pickerValue, this.mode).label
};
this.$emit('onCancel', pickObj);
},
pickerConfirm(e) {
this.showPicker = false;
this._initPickerVale();
let pickObj = {
index: this.pickerValue,
value: this._getPickerLabelAndValue(this.pickerValue, this.mode).value,
label: this._getPickerLabelAndValue(this.pickerValue, this.mode).label
};
this.$emit('onConfirm', pickObj);
},
showPickerView() {
this.showPicker = true;
},
pickerChange(e) {
console.log(11111111, e);
this.pickerValue = e.detail.value;
let pickObj = {
index: this.pickerValue,
value: this._getPickerLabelAndValue(this.pickerValue, this.mode).value,
label: this._getPickerLabelAndValue(this.pickerValue, this.mode).label
};
this.$emit('onChange', pickObj);
},
pickerChangeMul(e) {
if (this.deepLength === 2) {
let pickerValueArray = this.pickerValueArray;
let changeValue = e.detail.value;
// 处理第一列滚动
if (changeValue[0] !== this.pickerValue[0]) {
let pickerValueMulTwoTwo = [];
// 第一列滚动第二列数据更新
for (let i = 0, length = pickerValueArray[changeValue[0]].children.length; i < length; i++) {
pickerValueMulTwoTwo.push(pickerValueArray[changeValue[0]].children[i]);
}
this.pickerValueMulTwoTwo = pickerValueMulTwoTwo;
// 第二列初始化为 0
changeValue[1] = 0;
}
this.pickerValue = changeValue;
} else if (this.deepLength === 3) {
let pickerValueArray = this.pickerValueArray;
let changeValue = e.detail.value;
let pickerValueMulThreeTwo = [];
let pickerValueMulThreeThree = [];
// 重新渲染第二列
// 如果是第一列滚动
if (changeValue[0] !== this.pickerValue[0]) {
this.pickerValueMulThreeTwo = [];
for (let i = 0, length = pickerValueArray[changeValue[0]].children.length; i < length; i++) {
pickerValueMulThreeTwo.push(pickerValueArray[changeValue[0]].children[i]);
}
// 重新渲染第三列
for (let i = 0, length = pickerValueArray[changeValue[0]].children[0].children.length; i <
length; i++) {
pickerValueMulThreeThree.push(pickerValueArray[changeValue[0]].children[0].children[i]);
}
changeValue[1] = 0;
changeValue[2] = 0;
this.pickerValueMulThreeTwo = pickerValueMulThreeTwo;
this.pickerValueMulThreeThree = pickerValueMulThreeThree;
} else if (changeValue[1] !== this.pickerValue[1]) {
// 第二列滚动
// 重新渲染第三列
this.pickerValueMulThreeThree = [];
pickerValueMulThreeTwo = this.pickerValueMulThreeTwo;
for (let i = 0, length = pickerValueArray[changeValue[0]].children[changeValue[1]].children
.length; i <
length; i++) {
pickerValueMulThreeThree.push(pickerValueArray[changeValue[0]].children[changeValue[1]]
.children[
i]);
}
changeValue[2] = 0;
this.pickerValueMulThreeThree = pickerValueMulThreeThree;
}
this.pickerValue = changeValue;
}
let pickObj = {
index: this.pickerValue,
value: this._getPickerLabelAndValue(this.pickerValue, this.mode).value,
label: this._getPickerLabelAndValue(this.pickerValue, this.mode).label
};
this.$emit('onChange', pickObj);
},
// 获取 pxikerLabel
_getPickerLabelAndValue(value, mode) {
let pickerLable;
let pickerGetValue = [];
// selector
if (mode === 'selector') {
pickerLable = this.pickerValueSingleArray[value].label;
pickerGetValue.push(this.pickerValueSingleArray[value].value);
} else if (mode === 'timeSelector') {
pickerLable = `${this.pickerValueHour[value[0]].label}-${this.pickerValueMinute[value[1]].label}`;
pickerGetValue.push(this.pickerValueHour[value[0]].value);
pickerGetValue.push(this.pickerValueHour[value[1]].value);
} else if (mode === 'multiSelector') {
for (let i = 0; i < value.length; i++) {
if (i > 0) {
pickerLable += this.pickerValueMulArray[i][value[i]].label + (i === value.length - 1 ? '' :
'-');
} else {
pickerLable = this.pickerValueMulArray[i][value[i]].label + '-';
}
pickerGetValue.push(this.pickerValueMulArray[i][value[i]].value);
}
} else if (mode === 'multiLinkageSelector') {
/* eslint-disable indent */
pickerLable =
this.deepLength === 2 ?
`${this.pickerValueMulTwoOne[value[0]].label}-${this.pickerValueMulTwoTwo[value[1]].label}` :
`${this.pickerValueMulThreeOne[value[0]].label}-${this.pickerValueMulThreeTwo[value[1]].label}-${this.pickerValueMulThreeThree[value[2]].label}`;
if (this.deepLength === 2) {
pickerGetValue.push(this.pickerValueMulTwoOne[value[0]].value);
pickerGetValue.push(this.pickerValueMulTwoTwo[value[1]].value);
} else {
pickerGetValue.push(this.pickerValueMulThreeOne[value[0]].value);
pickerGetValue.push(this.pickerValueMulThreeTwo[value[1]].value);
pickerGetValue.push(this.pickerValueMulThreeThree[value[2]].value);
}
/* eslint-enable indent */
}
return {
label: pickerLable,
value: pickerGetValue
};
},
// 初始化 pickerValue 默认值
_initPickerVale() {
if (this.pickerValue.length === 0) {
if (this.mode === 'selector') {
this.pickerValue = [0];
} else if (this.mode === 'multiSelector') {
this.pickerValue = new Int8Array(this.pickerValueArray.length);
} else if (
this.mode === 'multiLinkageSelector' &&
this.deepLength === 2
) {
this.pickerValue = [0, 0];
} else if (
this.mode === 'multiLinkageSelector' &&
this.deepLength === 3
) {
this.pickerValue = [0, 0, 0];
}
}
}
}
};
</script>
<style>
.pickerMask {
position: fixed;
z-index: 1000;
top: 0;
right: 0;
left: 0;
bottom: 0;
background: rgba(0, 0, 0, 0.6);
}
.mpvue-picker-content {
position: fixed;
bottom: 0;
left: 0;
width: 100%;
transition: all 0.3s ease;
transform: translateY(100%);
z-index: 3000;
}
.mpvue-picker-view-show {
transform: translateY(0);
}
.mpvue-picker__hd {
display: flex;
padding: 9px 15px;
background-color: #fff;
position: relative;
text-align: center;
font-size: 17px;
}
.mpvue-picker__hd:after {
content: ' ';
position: absolute;
left: 0;
bottom: 0;
right: 0;
height: 1px;
border-bottom: 1px solid #e5e5e5;
color: #e5e5e5;
transform-origin: 0 100%;
transform: scaleY(0.5);
}
.mpvue-picker__action {
display: block;
flex: 1;
color: #1aad19;
}
.mpvue-picker__action:first-child {
text-align: left;
color: #888;
}
.mpvue-picker__action:last-child {
text-align: right;
}
.picker-item {
text-align: center;
line-height: 40px;
font-size: 16px;
}
.mpvue-picker-view {
position: relative;
bottom: 0;
left: 0;
width: 100%;
height: 238px;
background-color: rgba(255, 255, 255, 1);
}
</style>