266 lines
6.8 KiB
Vue
266 lines
6.8 KiB
Vue
<template>
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<view class="page">
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<u-navbar title="二维码" :border-bottom="false" :background="bgc" back-icon-color="#262B37" title-color='#262B37'
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title-size='36' height='50' id="navbar">
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</u-navbar>
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<view class="tishi">
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<text>微信“扫一扫”使用小程序</text>
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<text>开启您的一天好心情</text>
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</view>
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<view class="img">
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<image class="bj" src="https://api.ccttiot.com/smartmeter/img/static/uo2AtaJDlN9q2PxlBEDx" mode=""></image>
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<image :src="pic" class="picpic" mode="widthFix"></image>
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<view class="picpic" v-if="storeId != ''" style="top: 87%;">
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店铺：{{obj.name}}
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</view>
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<view class="picpic" v-if="roomId != ''" style="top: 87%;">
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房间：{{obj.roomName}}
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</view>
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<view class="picpic" v-if="toiletId != ''" style="top: 87%;">
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房间：{{obj.name}}
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</view>
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</view>
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<!-- 用于合并图片的 Canvas -->
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<canvas canvas-id="combinedCanvas" :style="{ width: canvasWidth + 'px', height: canvasHeight + 'px' }" style="position: absolute; left: -9999px;" />
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<!-- <button @click="mergeAndSaveImages">合并并保存图片</button> -->
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<!-- 展示二维码 -->
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<view class="imgewm">
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<canvas canvas-id="qrcode" style="height: 100%;margin: 0 auto;" />
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<!-- <view class="" style="width: 100%;text-align: center;margin-top: 20rpx;">
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店铺:{{obj.name}}
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</view> -->
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</view>
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<view class="anniu" @click="mergeAndSaveImages">
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保存二维码
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</view>
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</view>
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</template>
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<script>
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import uQRCode from '@/common/uqrcode.js'
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export default {
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data() {
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return {
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bgc: {
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backgroundColor: "#DEF1DA",
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},
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sn:'',
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roomId:'',
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https:'',
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pic:'',
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canvasWidth: 300, // Canvas 宽度
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canvasHeight: 400, // Canvas 高度
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obj:{},
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toiletId:'',
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storeId:''
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}
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},
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onLoad(option) {
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if(option.roomId){ //房间and大厅
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this.roomId = option.roomId
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this.https = 'https://testcha.chuangtewl.com?f=' + this.roomId
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}else if(option.storeId){ //大门-店铺
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this.storeId = option.storeId
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this.https = 'https://testcha.chuangtewl.com?d=' + this.storeId
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}else if(option.toiletId){ //厕所
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this.toiletId = option.toiletId
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this.https = 'https://testcha.chuangtewl.com?w=' + this.toiletId
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}
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console.log(option,JSON.parse(option.obj))
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this.obj = JSON.parse(option.obj)
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this.qrFun()
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},
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mounted() {
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this.drawCanvas()
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},
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methods: {
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mergeAndSaveImages() {
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const ctx = uni.createCanvasContext('combinedCanvas', this);
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// 绘制第一张图片
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uni.getImageInfo({
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src: 'https://api.ccttiot.com/smartmeter/img/static/uo2AtaJDlN9q2PxlBEDx',
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success: (res1) => {
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// 绘制第一张图片到 Canvas
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ctx.drawImage(res1.path, 0, 0, this.canvasWidth, this.canvasHeight);
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// 绘制第二张图片
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uni.getImageInfo({
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src: this.pic,
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success: (res2) => {
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// 绘制第二张图片到 Canvas
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// ctx.drawImage(res2.path, 75, 172, 152, this.canvasHeight / 2)
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ctx.drawImage(res2.path, 76, this.canvasHeight / 2.39, this.canvasWidth / 2, this.canvasHeight / 2)
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// 强制渲染 Canvas
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ctx.draw(true, () => {
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// 将 Canvas 内容导出为临时图片文件
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uni.canvasToTempFilePath({
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canvasId: 'combinedCanvas',
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success: (tempRes) => {
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// 保存图片到相册
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uni.saveImageToPhotosAlbum({
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filePath: tempRes.tempFilePath,
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success: () => {
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uni.showToast({
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title: '保存成功',
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icon: 'success'
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})
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},
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fail: (err) => {
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console.error('保存失败:', err)
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uni.showToast({
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title: '保存失败，请重试',
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icon: 'none'
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})
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}
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})
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},
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fail: (err) => {
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console.error('导出图片失败:', err)
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uni.showToast({
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title: '导出图片失败',
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icon: 'none'
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})
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}
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})
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})
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},
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fail: (err) => {
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console.error('获取第二张图片失败:', err)
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uni.showToast({
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title: '获取第二张图片失败',
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icon: 'none'
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})
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}
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})
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},
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fail: (err) => {
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console.error('获取第一张图片失败:', err)
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uni.showToast({
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title: '获取第一张图片失败',
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icon: 'none'
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})
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}
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})
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},
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drawCanvas() {
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const ctx = uni.createCanvasContext('qrcode', this)
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ctx.setFillStyle('#fff')
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ctx.fillRect(10, 10, 250, 250)
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ctx.draw()
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},
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// 保存二维码
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saveCanvas() {
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uni.canvasToTempFilePath({
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canvasId: 'qrcode',
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success: (res) => {
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console.log(res.tempFilePath) // 打印图片路径
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this.pic = res.tempFilePath
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// uni.saveImageToPhotosAlbum({
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// filePath: res.tempFilePath,
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// success: function() {
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// uni.showToast({
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// title: '保存成功',
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// icon: 'success'
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// })
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// }
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// })
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},
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fail: (err) => {
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console.error(err)
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}
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})
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},
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//**生成二维码**//
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qrFun: function() {
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this.wemflag = true
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uQRCode.make({
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canvasId: 'qrcode',
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text: this.https,
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size: 300,
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margin: 0,
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backgroundColor: '#ffffff',
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foregroundColor: '#000000',
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fileType: 'jpg',
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errorCorrectLevel: uQRCode.errorCorrectLevel.H,
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})
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setTimeout(()=>{
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this.saveCanvas()
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},1000)
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},
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}
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}
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</script>
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<style lang="scss">
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/deep/ .u-iconfont,
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/deep/ .u-title{
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padding-bottom: 20rpx;
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}
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.imgewm {
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width: 700rpx;
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height:700rpx;
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margin: auto;
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margin-top: 54rpx;
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position: absolute;
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top: 0;
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left: -200%;
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z-index: 2;
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}
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.tishi{
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width: 620rpx;
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height: 180rpx;
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background: #F8FFF6;
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border-radius: 20rpx 20rpx 20rpx 20rpx;
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text-align: center;
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padding-top: 20rpx;
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box-sizing: border-box;
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margin: auto;
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margin-top: 54rpx;
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text{
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margin-top: 16rpx;
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display: block;
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font-size: 36rpx;
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color: #3D3D3D;
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}
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}
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page {
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width: 750rpx;
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height: 1624rpx;
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background: #DEF1DA;
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border-radius: 0rpx 0rpx 0rpx 0rpx;
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}
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.name{
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width: 100%;
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text-align: center;
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font-size: 36rpx;
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}
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.img{
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width: 666rpx;
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height: 800rpx;
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padding: 0 30rpx;
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margin: auto;
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box-sizing: border-box;
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margin-top: 30rpx;
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position: relative;
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.picpic{
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position: absolute;
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top: 46%;
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left: 50%;
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transform: translateX(-50%);
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width: 270rpx;
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height: 340rpx;
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}
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}
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.anniu{
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width: 546rpx;
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height: 88rpx;
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background: #48893B;
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border-radius: 59rpx 59rpx 59rpx 59rpx;
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font-weight: 600;
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font-size: 40rpx;
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color: #FFFFFF;
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text-align: center;
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line-height: 88rpx;
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position: fixed;
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left: 50%;
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transform: translateX(-50%);
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bottom: 80rpx;
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}
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</style> |