生成名片格式

/*** 生成名片* @param array arr2 卡片素材* @param array strs 素材文字 数组* @param function successFn 回调函数* * */PosterCanvasCard: function(arr2, strs, successFn, errFun) {let that = this;const ctx = uni.createCanvasContext('myCanvas');ctx.clearRect(0, 0, 0, 0);/*** 只能获取合法域名下的图片信息,本地调试无法获取* */uni.getImageInfo({			src: arr2[0],success: function(res) {// const WIDTH = res.width*1.1;// const HEIGHT = res.height*1.125;// let r = 180;// let d = r * 2;// let cx = 190;// let cy = 450;// ctx.arc(cx + r, cy + r, r, 0, 2 * Math.PI);console.log(arr2)let imgIconnum = 1 let duber = 1;let fontNum = 1.5;let cardNum = 1let bgBase64 = `data:image/png;base64,*****`; // base64格式的图片let logBase = `data:image/png;base64,***2`; // logo 区域图ctx.drawImage(bgBase64, 0, 0, 355*duber + 35, 260*duber + 10); // 背景图ctx.setFillStyle("#FFFFFF");ctx.drawImage(logBase, 10*duber, 10*duber, 300*imgIconnum, 35*duber); ctx.save();ctx.restore();const CONTENT_ROW_LENGTH = 40;let [contentLeng, contentArray, contentRows] = that.textByteLength(strs[0], CONTENT_ROW_LENGTH);if (contentRows > 2) {contentRows = 2;let textArray = contentArray.slice(0, 2);textArray[textArray.length - 1] += '……';contentArray = textArray;}ctx.setTextAlign('center');ctx.setFontSize(24*fontNum);ctx.setFillStyle('#FFFFFF');let contentHh = 24 * fontNum * 1.3;for (let m = 0; m < contentArray.length; m++) {ctx.fillText(contentArray[m], 50*fontNum, 72*fontNum + contentHh * m);}ctx.setTextAlign('left')let nameW = 31* fontNum *strs[0].length;console.log(nameW);ctx.setFillStyle('#FFFFFF');ctx.setFontSize(10*fontNum);if (strs[1].length == 1) {ctx.fillText(strs[1][0], nameW, 28*fontNum + contentHh );}else if(strs[1].length == 2) {ctx.fillText(strs[1][0], nameW,  28*fontNum + contentHh );ctx.fillText(strs[1][1], nameW,  40*fontNum + contentHh);}ctx.setFontSize(12*fontNum);ctx.fillText(strs[2], 30*duber, 75*fontNum + contentHh );ctx.fillText(strs[3], 30*duber, 90*fontNum + contentHh);ctx.fillText(strs[4], 30*duber, 105*fontNum + contentHh);ctx.fillText(strs[5], 30*duber, 120*fontNum + contentHh);ctx.draw(true, function() {uni.canvasToTempFilePath({canvasId: 'myCanvas',fileType: 'png',destWidth: 1420*cardNum,destHeight: 1040*cardNum,success: function(res) {uni.hideLoading();successFn && successFn(res.tempFilePath);},fail: function(err) {uni.hideLoading();errFun && errFun(err);}})});},fail: function(err) {uni.hideLoading();that.Tips({title: '无法获取图片信息'});errFun && errFun(err);}})},

1、 背景图片或者添加的图片过大 可选择用base64格式

2、文字格式 ： [

        "姓名",

        "['职位', '职位二、职位3']",

        'phone',

        'email',

        'address'

        'webUrl'

]