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267 lines
6.0 KiB
267 lines
6.0 KiB
<template>
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<view class="promotion">
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<navbar title="二维码"
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bgColor="rgb(235, 51, 0)"
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color="#fff"
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leftClick @leftClick="$utils.navigateBack" />
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<image
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class="image"
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:src="promotionUrl" mode="aspectFill"></image>
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<!-- <canvas id="myCanvas" type="2d" canvas-id="firstCanvas1"></canvas> -->
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<view class="btn"
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v-if="promotionUrl"
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@click="preservationImg(promotionUrl)">
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保存到相册
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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 { mapState } from 'vuex'
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import index from '../../uni_modules/uv-ui-tools'
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export default {
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name: 'Promotion',
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computed: {
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...mapState(['userInfo', 'promotionUrl']),
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},
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data() {
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return {
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url: '',
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title: '',
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baseUrl: 'https://image.hhlm1688.com/',
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canvas: {},
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imagePath : '',
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// imagePath: 'https://image.hhlm1688.com/2025-03-06/32fbb8e2-160b-4cbf-9a49-a72de231de20.png',
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// imagePath: 'https://image.hhlm1688.com/2025-02-27/2fe7e417-54ad-4911-b9ba-84ac7d48e66d.png',
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// imagePath: 'https://image.hhlm1688.com/2025-02-26/6539d2fa-558d-47db-9681-ecffec5b6c5d.png',
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index : 0,
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}
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},
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onShow() {
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let that = this;
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// that.draw()
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if(!that.promotionUrl){
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// that.getQrCode()
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this.getImageInfo()
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}
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// that.$store.commit('getUserInfo')
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},
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methods: {
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getImageInfo(){
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let that = this;
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uni.showLoading({
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title: "拼命绘画中..."
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})
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uni.getImageInfo({
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src: `${this.$config.baseUrl}/info_common/getInviteCode?token=${uni.getStorageSync('token')}`,
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success : res => {
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uni.hideLoading()
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that.$store.commit('setPromotionUrl', res.path)
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},
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fail : err => {
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uni.showToast({
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icon: 'none',
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title: '绘画失败',
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})
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}
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})
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},
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getQrCode() {
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uni.showLoading({
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title: "拼命绘画中..."
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})
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let that = this;
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that.$api('getInviteCode', res => {
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if (res.code == 200) {
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that.url = res.result.url
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that.title = res.result.name
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that.imagePath = that.$config.aliOss.url + res.result.url
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that.$store.commit('setPromotionUrl', that.imagePath)
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// that.draw()
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uni.hideLoading()
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}
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})
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},
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draw() {
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uni.showLoading({
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title: "拼命绘画中..."
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})
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let that = this;
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wx.createSelectorQuery()
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.select('#myCanvas') // 绘制的canvas的id
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.fields({
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node: true,
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size: true
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})
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.exec((res) => {
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console.log("----------1")
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const canvas = res[0].node
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// 渲染上下文
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const ctx = canvas.getContext('2d')
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// Canvas 画布的实际绘制宽高
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const width = res[0].width
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const height = res[0].height
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console.log(width, height);
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// 初始化画布大小
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const dpr = wx.getWindowInfo().pixelRatio
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//根据dpr调整
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// dpr 2 4
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// 3 6
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let Ratio = dpr * 2
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canvas.width = width * dpr
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canvas.height = height * dpr
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that.canvas = canvas
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ctx.scale(dpr, dpr)
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ctx.clearRect(0, 0, width, height)
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// ctx.fillStyle = '#fff'
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// ctx.fillRect(0, 0, canvas.width, canvas.height)
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//图片
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const bgImage = canvas.createImage()
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bgImage.src = that.configList.qr_code
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//二维码图片
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const coderImage = canvas.createImage()
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coderImage.src = '../static/logo.png'
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// coderImage.src = that.baseUrl + that.url
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let size = 0;
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console.log("----------2")
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bgImage.onload = () => {
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canvas.width = bgImage.width
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canvas.height = bgImage.height
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ctx.drawImage(bgImage,
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0, 0, bgImage.width, bgImage.height)
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size = Math.floor(canvas.width / 3)
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ctx.drawImage(coderImage,
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canvas.width / 2 - (size / 2), canvas.height * 0.46, size, size)
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that.canvasToTempFilePath()
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}
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console.log("----------3")
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coderImage.onload = () => {
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ctx.drawImage(coderImage,
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canvas.width / 2 - (size / 2), canvas.height * 0.46, size, size)
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that.canvasToTempFilePath()
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}
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})
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},
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canvasToTempFilePath(){
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let that = this;
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that.index++
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if(that.index < 2){
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return
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}
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// 绘制完成后存储路径
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setTimeout(() => {
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wx.canvasToTempFilePath({
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x: 0,
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y: 0,
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width: that.canvas.width,
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height: that.canvas.height,
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canvas : that.canvas,
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success: (res) => {
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var tempFilePath = res.tempFilePath;
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that.imagePath = tempFilePath
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that.$store.commit('setPromotionUrl', res.tempFilePath)
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uni.hideLoading()
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that.load = false
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}
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});
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}, 200);
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},
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back() {
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uni.navigateBack(-1)
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},
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async preservationImg(img) {
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await this.$authorize('scope.writePhotosAlbum')
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this.imgApi(img);
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},
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imgApi(image) {
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/* 获取图片的信息 */
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uni.getImageInfo({
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src: image,
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success: function(image) {
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/* 保存图片到手机相册 */
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uni.saveImageToPhotosAlbum({
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filePath: image.path,
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success: function() {
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uni.showModal({
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title: '保存成功',
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content: '图片已成功保存到相册',
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showCancel: false
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});
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},
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complete(res) {
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console.log(res);
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}
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});
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}
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});
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},
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}
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}
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</script>
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<style lang="scss" scoped>
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.promotion {
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width: 100%;
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height: 100vh;
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background-color: $uni-color;
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}
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.image{
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width: 100%;
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height: calc(100vh - 320rpx);
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}
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#myCanvas {
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position: fixed;
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left: 100%;
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/* visibility: hidden */
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/* visibility: hidden; */
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/* margin-top: 100rpx; */
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width: 750rpx;
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height: calc(100vh - 120rpx);
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/* line-height: 20px; */
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background-color: rgba(255, 255, 255, 1);
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text-align: center;
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}
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.btn{
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position: fixed;
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// top: 58vh;
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bottom: 0;
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margin: 0;
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width: 750rpx;
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height: 100rpx;
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padding: 0;
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display: flex;
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justify-content: center;
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align-items: center;
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background-color: #fff;
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color: $uni-color;
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}
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</style>
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