index.vue
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<template>
<PageWrapper title="二维码组件使用示例">
<div class="flex flex-wrap">
<CollapseContainer
title="基础示例"
:canExpan="true"
class="text-center mb-6 qrcode-demo-item"
>
<QrCode :value="qrCodeUrl" />
</CollapseContainer>
<CollapseContainer title="渲染成img标签示例" class="text-center mb-6 qrcode-demo-item">
<QrCode :value="qrCodeUrl" tag="img" />
</CollapseContainer>
<CollapseContainer title="配置样式示例" class="text-center mb-6 qrcode-demo-item">
<QrCode
:value="qrCodeUrl"
:options="{
color: { dark: '#55D187' },
}"
/>
</CollapseContainer>
<CollapseContainer title="本地logo示例" class="text-center mb-6 qrcode-demo-item">
<QrCode :value="qrCodeUrl" :logo="LogoImg" />
</CollapseContainer>
<CollapseContainer title="在线logo示例" class="text-center mb-6 qrcode-demo-item">
<QrCode
:value="qrCodeUrl"
logo="https://vebn.oss-cn-beijing.aliyuncs.com/vben/logo.png"
:options="{
color: { dark: '#55D187' },
}"
/>
</CollapseContainer>
<CollapseContainer title="logo配置示例" class="text-center mb-6 qrcode-demo-item">
<QrCode
:value="qrCodeUrl"
:logo="{
src: 'https://vebn.oss-cn-beijing.aliyuncs.com/vben/logo.png',
logoSize: 0.2,
borderSize: 0.05,
borderRadius: 50,
bgColor: 'blue',
}"
/>
</CollapseContainer>
<CollapseContainer title="下载示例" class="text-center qrcode-demo-item">
<QrCode :value="qrCodeUrl" ref="qrRef" :logo="LogoImg" />
<a-button class="mb-2" type="primary" @click="download"> 下载 </a-button>
<div class="msg">(在线logo会导致图片跨域，需要下载图片需要自行解决跨域问题)</div>
</CollapseContainer>
<CollapseContainer title="配置大小示例" class="text-center qrcode-demo-item">
<QrCode :value="qrCodeUrl" :width="300" />
</CollapseContainer>
<CollapseContainer title="扩展绘制示例" class="text-center qrcode-demo-item">
<QrCode
:value="qrCodeUrl"
:width="200"
:options="{ margin: 5 }"
ref="qrDiyRef"
:logo="LogoImg"
@done="onQrcodeDone"
/>
<a-button class="mb-2" type="primary" @click="downloadDiy"> 下载 </a-button>
<div class="msg">要进行扩展绘制则不能将tag设为img</div>
</CollapseContainer>
</div>
</PageWrapper>
</template>
<script lang="ts">
import { defineComponent, ref, unref } from 'vue';
import { QrCode, QrCodeActionType } from '/@/components/Qrcode/index';
import LogoImg from '/@/assets/images/logo.png';
import { CollapseContainer } from '/@/components/Container/index';
import { PageWrapper } from '/@/components/Page';
import { type Nullable } from '@vben/types';
const qrCodeUrl = 'https://www.vvbin.cn';
export default defineComponent({
components: { CollapseContainer, QrCode, PageWrapper },
setup() {
const qrRef = ref<Nullable<QrCodeActionType>>(null);
const qrDiyRef = ref<Nullable<QrCodeActionType>>(null);
function download() {
const qrEl = unref(qrRef);
if (!qrEl) return;
qrEl.download('文件名');
}
function downloadDiy() {
const qrEl = unref(qrDiyRef);
if (!qrEl) return;
qrEl.download('Qrcode');
}
function onQrcodeDone({ ctx }: any) {
if (ctx instanceof CanvasRenderingContext2D) {
// 额外绘制
ctx.fillStyle = 'black';
ctx.font = '16px "微软雅黑"';
ctx.textBaseline = 'bottom';
ctx.textAlign = 'center';
ctx.fillText('你帅你先扫', 100, 195, 200);
}
}
return {
onQrcodeDone,
qrCodeUrl,
LogoImg,
download,
downloadDiy,
qrRef,
qrDiyRef,
};
},
});
</script>
<style scoped>
.qrcode-demo-item {
width: 30%;
margin-right: 1%;
}
</style>