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- <template>
- <view class="content">
- <!-- <view class="qrimg">
- <tki-qrcode
- :cid="cid"
- ref="qrcode"
- :val="val"
- :size="size"
- :unit="unit"
- :background="background"
- :foreground="foreground"
- :pdground="pdground"
- :icon="icon"
- :iconSize="iconSize"
- :lv="lv"
- :onval="onval"
- :loadMake="loadMake"
- :usingComponents="usingComponents"
- @result="qrR"
- />
- </view> -->
- <!-- #ifndef MP-ALIPAY -->
- <!-- <canvas :class="{ qrimg: !loading }" @longtap="alertCanv" id="qrShareBox" canvas-id="qrShareBox" class="tki-qrcode-canvas" /> -->
- <!-- #endif -->
- <!-- #ifdef MP-ALIPAY -->
- <!-- <canvas :class="{ qrimg: !loading }" @longtap="alertCanv" id="qrShareBox" class="tki-qrcode-canvas" /> -->
- <!-- #endif -->
- <!-- <view :style="{ display: loading ? 'none' : 'block' }" class="tki-qrcode-canvas"><image :src="ctxSrc" mode="scaleToFill" class="tki-qrcode-canvas"></image></view> -->
- <!-- <view class="tki-qrcode-canvas"> -->
- <image :src="ctxSrc" mode="widthFix" class="tki-qrcode-canvas"></image>
- <!-- </view> -->
- <!-- <view class="share-bottom flex" :class="{ 'action-share-bottom': !loading }" @click="loading ? showImg() : ''">
- <text>{{ loading ? '点击生成图片' : '长按二维码下载' }}</text>
- </view> -->
- <!-- <view class="share-bottom flex">
- <text>长按二维码下载</text>
- </view> -->
- </view>
- </template>
- <script>
- import tkiQrcode from '@/components/tki-qrcode/tki-qrcode.vue';
- import { spreadBanner } from '@/api/shareQrCode.js';
- import { getUserInfo } from '@/api/login.js';
- import { weixindata, shareData, loadShareData } from '@/utils/wxAuthorized.js';
- import { mapState } from 'vuex';
- import { share } from '@/api/wx';
- export default {
- computed: {
- ...mapState(['baseURL', 'urlFile']),
- ...mapState('user', ['userInfo'])
- },
- // components: { tkiQrcode },
- data() {
- return {
- cid: 'tki-qrcode-canvas', //canvasId,页面存在多个二维码组件时需设置不同的ID
- size: 180, //生成的二维码大小
- unit: 'upx', //大小单位尺寸
- // show: true,//默认使用组件中的image标签显示二维码
- val: '', //要生成的内容
- background: '#ffffff', //二维码背景色
- foreground: '#333333', //二维码前景色
- pdground: '#333333', //二维码角标色
- icon: '', //二维码图标URL(必须是本地图片,网络图需要先下载至本地)
- iconSize: 40, //二维码图标大小
- lv: 3, //容错级别
- onval: false, //监听val值变化自动重新生成二维码
- loadMake: false, //组件初始化完成后自动生成二维码,val需要有值
- usingComponents: false, //是否使用了自定义组件模式(主要是为了修复非自定义组件模式时 v-if 无法生成二维码的问题)
- showLoading: false, //是否显示loading
- loadingText: '二维码生成中', //loading文字
- src: '', // 二维码生成后的图片地址或base64
- ratio: 1, //页面比例用于计算
- ctxSrc: '', //要显示的图片
- loading: true, //是否载入图片中
- canHeight: '',
- canWeidth: '',
- login: false //判断是否登录
- };
- },
- onShow() {
- let obj = this;
- if (!obj.login) {
- // 判断是否已经登录
- getUserInfo()
- .then(e => {
- obj.login = true;
- uni.showLoading({
- title: '邀请图生成中',
- mask: true
- });
- obj.loadCodeList();
- })
- .catch(e => {
- console.log(e);
- });
- }
- },
- onReady() {
- let obj = this;
- let query = uni.createSelectorQuery();
- // 获取页面比例
- query
- .select('.content')
- .fields(
- {
- size: true
- },
- e => {
- // 保存比例
- this.ratio = e.width / 750;
- }
- )
- .exec();
- // 获取画布宽高信息
- query
- .select('#qrShareBox')
- .fields(
- {
- size: true
- },
- e => {
- obj.canHeight = e.height;
- obj.canWeidth = e.width;
- }
- )
- .exec({});
- },
- methods: {
- // 设置分享数据
- setShare() {
- let obj = this;
- // 加载分享数据
- // #ifdef H5
- obj.loadSareData().then(e => {
- weixindata({
- link: obj.ctxSrc, // 分享链接
- imgUrl:obj.baseURL+obj.urlFile+'/img/logo.jpg',
- desc:'欢迎加入满园春',
- title: '满园春线上商城',
- success: function() {},
- fail: function() {}
- });
- });
- // #endif
- },
- loadSareData() {
- if (!shareData) {
- return loadShareData();
- } else {
- return new Promise((resolve, reject) => {
- resolve(shareData);
- });
- }
- },
- loadCodeList() {
- let obj = this;
- // 加载二维码信息
- spreadBanner({
- // #ifdef H5
- type: 2,
- // #endif
- // #ifdef MP
- type: 1
- // #endif
- })
- .then(e => {
- console.log(e);
- // 保存二维码图片
- // this.src = e.data.real_url;
- obj.ctxSrc = e.data.wap_poster;
- // 生成画布
- // this.loadImg(e.data.real_url);
- uni.hideLoading();
- // 加载分享数据
- obj.setShare()
- })
- .catch(e => {
- uni.showModal({
- title: '生成失败请刷新页面',
- showCancel: false
- });
- uni.hideLoading();
- });
- },
- // 长按画布事件
- alertCanv() {
- uni.showModal({
- title: '请先点击生成图片',
- showCancel: false
- });
- },
- // 生成图片
- showImg() {
- uni.showLoading({
- title: '图片生成中',
- mask: true
- });
- let obj = this;
- //因为和uni.showLoading载入效果冲突需要延迟执行生成图片方法
- setTimeout(function() {
- uni.canvasToTempFilePath({
- x: 0,
- y: 0,
- width: obj.canWeidth,
- height: obj.canHeight,
- destWidth: obj.canWeidth,
- destHeight: obj.canHeight,
- fileType: 'jpg',
- quality: 1,
- canvasId: 'qrShareBox',
- success: res => {
- uni.hideLoading();
- uni.showModal({
- title: '创建成功,长按二维码下载图片',
- showCancel: false
- });
- // 显示生成的图片
- obj.loading = false;
- obj.ctxSrc = res.tempFilePath;
- },
- fail(e) {
- console.log(e);
- }
- });
- }, 50);
- },
- // 开始渲染画布
- loadImg(src) {
- let obj = this;
- const ctxBg = '/static/img/img14.jpg'; //画布背景
- let context = uni.createCanvasContext('qrShareBox');
- const codeSize = this.size * this.ratio; //计算二维码大小
- const codeX = ((523 - this.size) * this.ratio) / 2; //二维码所在x轴位置
- const codeY = 700 * this.ratio; //二维码所在y轴位置
- const codeBoxColor = '#FFFFFF'; //包裹框颜色
- const codeBoxWidht = 0; //包裹边框宽度
- const codeBoxSize = (codeBoxWidht / 2) * this.ratio; //计算二维码白色包裹框大小
- const codeBoxX = codeX - codeBoxSize; //包裹框初始X轴
- const codeBoxY = codeY - codeBoxSize; //包裹框初始Y轴
- const codeBoxEnd = codeSize + codeBoxWidht * this.ratio; //计算包裹框大小
- // const fontLeft = (codeSize - fontSize * fontText.length) / 2 + codeX; //文字左侧距离
- const fontTop = codeY + codeBoxEnd + (codeBoxWidht + 30) * this.ratio; //文字距离上边距高度
- const fontLeft = codeX - 50 * this.ratio; //文字左侧距离
- const fontSize = 14; //文字大小
- const fontText = '邀请人:' + uni.getStorageSync('userInfo').nickname; //文字内容
- // 插入背景图片
- context.drawImage(ctxBg, 0, 0, obj.canWeidth, obj.canHeight);
- // // 插入文字
- context.setFontSize(fontSize);
- context.fillText(fontText, fontLeft, fontTop);
- // 插入边框
- context.beginPath();
- context.setLineJoin('round'); //边框类型
- context.setLineWidth(codeBoxWidht * this.ratio);
- context.setStrokeStyle(codeBoxColor); //设置包裹框颜色
- context.strokeRect(codeBoxX, codeBoxY, codeBoxEnd, codeBoxEnd);
- context.stroke();
- // 插入二维码
- context.drawImage(src, codeX, codeY, codeSize, codeSize);
- // 开始渲染
- context.draw();
- },
- // 創建二维码
- creatQrcode() {
- this.$refs.qrcode._makeCode();
- },
- // 保存二维码到图库
- saveQrcode() {
- this.$refs.qrcode._saveCode();
- },
- // 生成二维码后返回base64
- qrR(res) {
- this.src = res;
- },
- //清空二维码(清空二维码会触发result回调 返回值为空)
- clearQrcode(e) {
- this.$refs.qrcode._clearCode();
- this.val = '';
- }
- }
- };
- </script>
- <style lang="scss">
- .content {
- // padding-top: 30rpx;
- }
- // #qrShareBox {
- // position: absolute;
- // left: -9999rpx;
- // top: -9999rpx;
- // }
- .qrimg {
- position: absolute;
- left: -9999rpx;
- top: -9999rpx;
- }
- .tki-qrcode-canvas {
- // width: 700rpx;
- // height: 1245rpx;
- width: 750rpx;
- // height: 945rpx;
- margin: 0 auto;
- }
- .share-bottom {
- width: 560rpx;
- height: 80rpx;
- color: #ffffff;
- background-color: $base-color;
- margin: 0 auto;
- font-size: $font-lg - 2rpx;
- margin-top: 30rpx;
- border-radius: 99rpx;
- justify-content: center;
- &.action-share-bottom {
- background-color: $color-gray;
- }
- }
- </style>
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