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// index.js
import drawQrcode from '../../utils/weapp.qrcode.esm.js'
// 获取应用实例
const app = getApp()
// const query = wx.createSelectorQuery()
Page({
data: {
qrcodeWidth: 0
},
onLoad: function () {
const query = wx.createSelectorQuery()
query.select('#myQrcode')
.fields({
node: true,
size: true
})
.exec((res) => {
var canvas = res[0].node
// 调用方法drawQrcode生成二维码
drawQrcode({
canvas: canvas,
canvasId: 'myQrcode',
width: 260,
padding: 30,
background: '#ffffff',
foreground: '#000000',
text: 'hello world',
})
// 获取临时路径(得到之后,想干嘛就干嘛了)
wx.canvasToTempFilePath({
canvasId: 'myQrcode',
canvas: canvas,
x: 0,
y: 0,
width: 260,
height: 260,
destWidth: 260,
destHeight: 260,
success(res) {
console.log('二维码临时路径:', res.tempFilePath)
},
fail(res) {
console.error(res)
}
})
})
},
// 生成二维码
})
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