412 lines
8.0 KiB
Vue
412 lines
8.0 KiB
Vue
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<template>
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<view :class="modal?'show-qrcode':'hide-qrcode'">
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<view class="box-qrcode" :style="{'margin-left': marginLeft + 'px'}" @longtap="longtapCode">
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<!-- style="width: 550rpx;height: 550rpx;" -->
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<canvas class="canvas-qrcode" :style="style_w_h" :canvas-id="qrcode_id">
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<!-- #ifndef MP -->
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<view v-if="modal&&is_themeImg" :style="style_w_h" class="box-img-qrcode">
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<image :style="style_w_h_img" mode="scaleToFill" :src="themeImg"></image>
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</view>
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<!-- #endif -->
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</canvas>
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<!-- <image mode="scaleToFill" :src="imagePath"></image> -->
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</view>
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</view>
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</template>
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<script>
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var qr_we = require("./qrcode_wx.js");
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const qrCode = require('./weapp-qrcode.js')
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export default {
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data() {
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return {
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isAndroid : false ,
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show: true,
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imagePath: '',
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// qrcode_id: 'qrcode_id',
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marginLeft: 0,
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//一般的安卓app只需加30就能显示全
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//苹果app的不加就能显示全，加了就要弄margin-left
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//有些安卓app显示不全
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add_num : 30 ,
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add_num_key : 'rectify_code_key',
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}
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},
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props: {
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modal: {
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type: Boolean,
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default: false
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},
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url: {
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type: String,
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default: ''
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},
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height: {
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type: Number,
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default: 260
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},
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width: {
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type: Number,
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default: 260
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},
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themeColor: {
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type: String,
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default: '#333333',
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},
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qrcode_id: {
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type: String,
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default: 'qrcode_id',
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},
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is_themeImg: {
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type: Boolean,
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default: false,
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},
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themeImg: {
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type: String,
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default: 'https://cdn.pixabay.com/photo/2016/11/29/13/24/balloons-1869816__340.jpg',
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},
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h_w_img: {
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type: Number,
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default: 30
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},
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},
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watch:{
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},
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computed: {
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style_w_h() {
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return this.set_style_w_h();
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},
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style_w_h_img() {
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let that = this;
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var height = parseInt(that.h_w_img);
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var width = parseInt(that.h_w_img);
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var style = '';
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if (height > 0) {
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style = `height:${height*2}rpx;`;
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}
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if (width > 0) {
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style += `width:${width*2}rpx;z-index: 2;`;
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}
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return style;
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},
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},
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created: function() {
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let that = this;
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try {
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//app苹果二维码不居中
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//#ifndef MP
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let isAndroid = false ;
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const res = uni.getSystemInfoSync();
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if(res.platform == 'android'){
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isAndroid = true ;
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}else{
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isAndroid = false ;
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}
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if (!isAndroid) {
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that.marginLeft = 46;
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}
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that.isAndroid = isAndroid ;
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try {
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const add_num = uni.getStorageSync(that.add_num_key);
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if (add_num) {
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that.add_num = add_num;
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}
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} catch (e) {
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// error
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}
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// #endif
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} catch (e) {
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// error
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}
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//#ifdef MP
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//that.marginLeft = 40;
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// #endif
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},
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methods: {
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set_style_w_h(){
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let that = this;
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var height = parseInt(that.height);
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var width = parseInt(that.width);
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var style = '';
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var height = height*2 ;
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var width = width*2 ;
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//#ifndef MP
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var add = that.add_num ;
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height += add;
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width += add;
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// #endif
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if (height > 0) {
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style = `height:${height}rpx;`;
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}
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if (width > 0) {
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style += `width:${width}rpx;`;
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}
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return style;
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},
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hideQrcode() {
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this.$emit("hideQrcode")
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},
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// 二维码生成工具
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crtQrCode() {
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let that = this;
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//#ifndef MP
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new qrCode(that.qrcode_id, {
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text: this.url,
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width: that.width,
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height: that.height,
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colorDark: that.themeColor,//#333333
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colorLight: "#FFFFFF",
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correctLevel: qrCode.CorrectLevel.H,
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})
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// #endif
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//#ifdef MP
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that.createQrCode(this.url, that.qrcode_id, that.width, that.height,that.themeColor,that.is_themeImg,that.themeImg,that.h_w_img);
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// #endif
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//that.createQrCode(this.url, that.qrcode_id, that.width, that.height);
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},
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//#ifdef MP
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createQrCode: function(url, canvasId, cavW, cavH,cavColor,haveImg,imgurl,imgsize) {
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//调用插件中的draw方法，绘制二维码图片
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qr_we.api.draw(url, canvasId, cavW, cavH,cavColor,haveImg,imgurl,imgsize, this, this.canvasToTempImage);
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// setTimeout(() => { this.canvasToTempImage();},100);
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},
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// #endif
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//获取临时缓存照片路径，存入data中
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canvasToTempImage: function() {
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var that = this;
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},
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saveImage: function() {
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var that = this;
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uni.canvasToTempFilePath({
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canvasId: that.qrcode_id,
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success: function(res) {
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var tempFilePath = res.tempFilePath;
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// console.log(tempFilePath);
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that.imagePath = tempFilePath;
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//保存到相册
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// uni.saveFile({
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// tempFilePath: tempFilePath,
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// success: function (res2) {
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// var savedFilePath = res2.savedFilePath;
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// }
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// });
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uni.saveImageToPhotosAlbum({
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filePath : tempFilePath ,
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success: function (res3) {
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uni.showModal({
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title: '提示',
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content: '保存成功',
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confirmText: '确定',
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showCancel: false,
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confirmColor: '#33CCCC',
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success(res4) {
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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: function(res) {
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// console.log(res);
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}
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}, that);
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},
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//微信小程序支持：长按二维码，提示是否保存相册
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//安卓APP长按校正二维码
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longtapCode(){
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var that = this;
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//#ifndef MP
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uni.showModal({
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title: '校正二维码',
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content: '二维码是否异常',
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confirmText: '确定',
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confirmColor: '#33CCCC',
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success(res) {
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if (res.confirm) {
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that.rectify_code();
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}
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}
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})
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// #endif
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//#ifdef MP-WEIXIN
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uni.showModal({
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title: '提示',
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content: '是否保存到相册',
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confirmText: '确定',
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confirmColor: '#33CCCC',
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success(res) {
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if (res.confirm) {
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that.saveImage();
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}
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}
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})
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// #endif
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},
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//安卓有些手机不正常，长按可选择矫正
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rectify_code(){
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var that = this;
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let add_num = that.add_num ;
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add_num += 30 ;
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that.add_num = add_num;
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that.crtQrCode();//重新生成才会立即覆盖
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try {
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//第一次长按校正设置了就不用在设置
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uni.setStorage({
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key: that.add_num_key,
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data: add_num,
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success: function() {
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}
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});
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} catch (e) {
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// error
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}
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},
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},
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mounted() {}
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}
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</script>
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<style scoped lang="scss">
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// .qrcode-box {
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// position: fixed;
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// left: 0;
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// top: 0;
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// right: 0;
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// bottom: 0;
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// height: 100vh;
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// width: 100vw;
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// background-color: rgba(59, 59, 59, 0.6);
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// // opacity: 0.8;
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// text-align: center;
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// display: flex;
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// align-items: center;
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// display: none;
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// .qrcode-item {
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// flex: 1;
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// position: relative;
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// text-align: center;
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// .item-box {
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// width: 90%;
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// margin: auto;
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// display: inline-block;
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// margin-top: 30%;
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// padding-bottom: 30rpx;
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// // animation: show 0.7s;
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// .title {
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// font-size: 46rpx;
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// text-align: center;
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// margin-bottom: 24rpx;
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// }
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// .canvas {
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// margin: auto;
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// display: inline-block;
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// margin: auto;
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// }
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// background-color: #FFFFFF;
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// }
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// }
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// }
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.box-qrcode{
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text-align: center;
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position: relative;
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.box-img-qrcode{
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position: absolute;
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display: flex;
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flex-direction: column;
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justify-content: center;
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align-items: center;
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z-index: 2;
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}
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}
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image{
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width: 60upx;
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height: 60upx;
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border-radius: 50%;
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}
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.canvas-qrcode {
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margin: auto;
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display: inline-block;
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float: left;
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}
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.opacity-qrcode {
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opacity: 0;
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display: block;
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}
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.show-qrcode {
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display: block;
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animation: fade 0.7s;
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// -moz-animation: fade 0.5s; /* Firefox */
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// -webkit-animation: fade 0.5s; /* Safari 和 Chrome */
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// -o-animation: fade 0.5s;
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}
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.hide-qrcode {
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animation: hide 0.7s;
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}
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@keyframes fade {
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from {
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opacity: 0.8;
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}
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to {
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opacity: 1;
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}
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|
|
}
|
|||
|
|
|
|||
|
|
@keyframes hide {
|
|||
|
|
from {
|
|||
|
|
opacity: 1;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
to {
|
|||
|
|
opacity: 0;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
</style>
|