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hazardousWaste_app/pages/warehousing/uniqueCode/myUniqueCode/QrCodeModal.vue

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Vue
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2026-04-03 08:38:34 +08:00
<template>
<view style="display: block;">
<view class="top">
<uv-image src="../../../../static//logo/logo.jpg" width="40px" height="40px" style="margin-top:10rpx" />
<!-- 唯一兼容 iPad 的写法 2D Canvas -->
<canvas id="barcode" type="2d" class="barcode-canvas"></canvas>
</view>
<view class="content mt-16">
<p>物料
<span>{{ material?.materialName }}</span>
<span v-if="material?.quantity">x {{ material?.quantity }}</span>
</p>
<p>描述
<span v-if="material?.description">{{ material?.description || '-' }}</span>
<span v-else>
<span v-if="material?.materialShortName">{{ material?.materialShortName }} / </span>
<span v-if="material?.model">{{ material?.model }} / </span>
<span v-if="material?.specification">{{ material?.specification }} / </span>
<span v-if="material?.typeName">{{ material?.typeName }} </span>
</span>
</p>
<view class="top">
<p>备注
<span>{{ material?.uniqueCodeRemark || '' }}</span>
</p>
<uv-image :src="qrCode" width="80rpx" height="80rpx" />
</view>
</view>
</view>
</template>
<script setup>
import { onMounted, computed, watch } from 'vue';
import JsBarcode from 'jsbarcode';
const props = defineProps({
detail: { type: Object, default: null }
});
const qrCode = computed(() => props.detail?.material?.[0]?.qrCode);
const material = computed(() => props.detail?.material?.[0]);
const barcodeValue = computed(() => props.detail?.material?.[0]?.code || '');
// iPad 兼容核心:不用 document只用 uni 官方 API
const drawBarcode = () => {
if (!barcodeValue.value) return;
const query = uni.createSelectorQuery();
query.select('#barcode')
.fields({ node: true, size: true })
.exec((res) => {
const canvas = res[0]?.node;
if (!canvas) return;
const ctx = canvas.getContext('2d');
ctx.clearRect(0, 0, canvas.width, canvas.height);
// 渲染条形码
JsBarcode(canvas, barcodeValue.value, {
format: 'CODE128',
width: 2,
height: 40,
displayValue: false,
margin: 10,
});
});
};
// 延迟执行,保证 iPad 能加载
onMounted(() => {
setTimeout(drawBarcode, 400);
});
// 数据变化重新绘制
watch(
() => props.detail,
() => setTimeout(drawBarcode, 400),
{ deep: true }
);
</script>
<style scoped lang="scss">
.top {
display: flex;
align-items: center;
justify-content: space-between;
}
.content {
// display: flex;
p {
font-weight: 600;
font-size: 14px;
}
span {
font-weight: 400;
font-size: 14px;
}
}
/* 必须给宽度高度iPad 才会显示 */
.barcode-canvas {
width: 40%;
height: 20px;
}
</style>