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2025-10-27 15:55:29 +08:00
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<template>
<view class="code-box">
<view class="flex-box">
<input :value="inputValue" type="number" :focus="autoFocus" :maxlength="maxlength" class="hide-input" @input="getVal" />
<block v-for="(item, index) in ranges" :key="index">
<view :class="['item', { active: codeIndex === item, middle: type === 'middle', bottom: type === 'bottom', box: type === 'box' }]">
<view class="line" v-if="type !== 'middle'"></view>
<view v-if="type === 'middle' && codeIndex <= item" class="bottom-line"></view>
<block v-if="isPwd && codeArr.length >= item"><text class="dot"></text></block>
<block v-else>
<text class="number">{{ codeArr[index] ? codeArr[index] : '' }}</text>
</block>
</view>
</block>
</view>
</view>
</template>
<script>
// 支持使用 v-model
// 支持使用refs
export default {
name: 'mypOneInput',
props: {
// 支持外部提供支持使用v-model
// 支持通过value来做清空
value: {
type: String,
default: ''
},
// 4/6
maxlength: {
type: Number,
default: 4
},
autoFocus: {
type: Boolean,
default: false
},
isPwd: {
type: Boolean,
default: false
},
// middle-middle line, bottom-bottom line, box-square box
type: {
type: String,
default: 'bottom'
}
},
watch: {
maxlength: {
immediate: true,
handler: function(newV) {
if (newV === 6) {
this.ranges = [1, 2, 3, 4, 5, 6];
} else {
this.ranges = [1, 2, 3, 4];
}
}
},
value: {
immediate: true,
handler: function(newV) {
if (newV !== this.inputValue) {
this.inputValue = newV;
this.toMakeAndCheck(newV);
}
}
}
},
data() {
return {
inputValue: '',
codeIndex: 1,
codeArr: [],
ranges: [1, 2, 3, 4]
};
},
methods: {
getVal(e) {
const val = e.detail.value;
this.inputValue = val;
this.$emit('input', val);
this.toMakeAndCheck(val);
},
toMakeAndCheck(val) {
const arr = val.split('');
this.codeIndex = arr.length + 1;
this.codeArr = arr;
if (this.codeIndex > Number(this.maxlength)) {
this.$emit('finish', this.codeArr.join(''));
}
},
// refs 时不再提供 v-model 支持
// 支持使用refs来设置value
// 没有提供数据保护与检测,自己在外面对数据进行检测保护
set(val) {
this.inputValue = val;
this.toMakeAndCheck(val);
},
// 支持使用refs来清空
clear() {
this.inputValue = '';
this.codeArr = [];
this.codeIndex = 1;
}
}
};
</script>
<style scoped>
@keyframes twinkling {
0% {
opacity: 0.2;
}
50% {
opacity: 0.5;
}
100% {
opacity: 0.2;
}
}
.code-box {
text-align: center;
}
.flex-box {
display: flex;
justify-content: center;
flex-wrap: wrap;
position: relative;
}
.flex-box .hide-input {
position: absolute;
top: 0;
left: -100%;
width: 200%;
height: 100%;
text-align: left;
z-index: 9;
opacity: 1;
}
.flex-box .item {
position: relative;
flex: 1;
margin-right: 18rpx;
font-size: 70rpx;
font-weight: bold;
color: #333333;
line-height: 100rpx;
}
.flex-box .item::before {
content: '';
padding-top: 100%;
display: block;
}
.flex-box .item:last-child {
margin-right: 0;
}
.flex-box .middle {
border: none;
}
.flex-box .box {
box-sizing: border-box;
border: 2rpx solid #cccccc;
border-width: 2rpx 0 2rpx 2rpx;
margin-right: 0;
}
.flex-box .box:first-of-type {
border-top-left-radius: 8rpx;
border-bottom-left-radius: 8rpx;
}
.flex-box .box:last-child {
border-right: 2rpx solid #cccccc;
border-top-right-radius: 8rpx;
border-bottom-right-radius: 8rpx;
}
.flex-box .bottom {
box-sizing: border-box;
border-bottom: 2rpx solid #ddd;
}
.flex-box .active {
border-color: #ddd;
}
.flex-box .active .line {
display: block;
}
.flex-box .line {
display: none;
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
width: 2rpx;
height: 40rpx;
background: #333333;
animation: twinkling 1s infinite ease;
}
.flex-box .dot,
.flex-box .number {
line-height: 40rpx;
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
.flex-box .bottom-line {
height: 8rpx;
background: #000000;
width: 80%;
position: absolute;
border-radius: 4rpx;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
</style>