printCard.vue
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<template>
<view>
<uni-section :title="`${cardRuleName}(${cardTypeName})`" type="line">
<uni-card padding="0" spacing="0">
<uni-list>
<uni-list-item title="适应车场" :rightText="plName">
<text></text>
</uni-list-item>
<uni-list-item :title="`价格：¥${(price/100).toFixed(2)}/张`"
:rightText="`商户库存：${cardNum}张`"></uni-list-item>
</uni-list>
</uni-card>
</uni-section>
<view class=" uni-card text-center" style="padding: 10px 0">
<image :src="qrUrl" style="width: 300px;height:300px;margin: 0 auto;"
show-menu-by-longpress='1'></image>
</view>
<view style="padding: 5px 10px">长按上面二维码可以保存为图片</view>
<view class=" uni-card" style="padding: 10px 15px">
<view style="padding-bottom: 10px;">选择二维码有效期</view>
<!--<uni-number-box @change="changeValue" min="1"/>-->
<uni-datetime-picker v-model="single" :start="startTime"/>
</view>
<view class="uni-padding-wrap uni-common-mt">
<!--<button type="primary" style="margin-bottom: 15px">停止自动发放</button>-->
<button type="warn" @click="changeTime">重新生成二维码</button>
</view>
</view>
</template>
<script>
import uQRCode from '../../common/uqrcode.js' //引入uqrcode.js
import { formatDate } from '../../common/date.js';
export default {
data() {
return {
cardTypeName: '',// 卡类型名称
cardRuleName: '',// 卡名称
plName: '', // 停车场
price: '', // 卡价格
cardNum: '', // 库存
cardRelParkNo: '',//商券规则关联车场和商户编码
numberValue: '1',
deadline: '2099-10-01 00:00:00',
qrUrl: '', // 图片地址
single: '',
startTime: '',
deadlineInit: ""
}
},
onLoad(params) {
wx.showShareMenu({
withShareTicket: true
})
console.log(params)
let option = params
this.cardRelParkNo = option.cardRelParkNo
this.cardTypeName = option.cardTypeName
this.cardRuleName = option.cardRuleName
this.plName = option.plName
this.price = option.price
this.cardNum = option.cardNum
this.deadline = this.dateAdd(1)
console.log(this.deadline)
this.getCouponStaticQR()
},
onShow() {
var me = this;
},
mounted() {
setTimeout(() => {
this.startTime = Date.now()
this.single = formatDate(new Date(), 'yyyy-MM-dd hh:mm:ss')
this.deadlineInit = formatDate(new Date(), 'yyyy-MM-dd hh:mm:ss');
console.log(this.single)
}, 500)
},
computed: {},
methods: {
timeAdd0(str) {
if (str < 10) {
str = '0' + str;
}
return str
},
dateAdd(days) {
var startDate = new Date();
startDate = +startDate + days * 1000 * 60 * 60 * 24;
startDate = new Date(startDate);
var nextStartDate = startDate.getFullYear() + "-" + this.timeAdd0((startDate.getMonth() + 1)) + "-" + this.timeAdd0(startDate.getDate()) + " " + this.timeAdd0(startDate.getHours()) + ":" + this.timeAdd0(startDate.getMinutes()) + ":" + this.timeAdd0(startDate.getSeconds())
return nextStartDate;
},
changeValue(value) {
this.numberValue = value
},
getCouponStaticQR() {
let that = this
let paramsData = {
cardRelParkNo: this.cardRelParkNo,
codeType: '2',
deadline: this.deadline
}
// 首页信息获取 接口
that.$myRequest({
url: that.$common.getCouponStaticQR,
method: 'POST',
data: that.$common.requestSign(paramsData)
}).then(res => {
console.log(res)
that.qrUrl = res.data.qrUrl
console.log(that.qrUrl)
})
},
//**生成二维码**//
qrFun: function (text) {
this.qrShow = true
uQRCode.make({
canvasId: 'qrcode',
componentInstance: this,
text: text,
size: 130,
margin: 0,
backgroundColor: '#ffffff',
foregroundColor: '#000000',
fileType: 'jpg',
errorCorrectLevel: uQRCode.errorCorrectLevel.H,
success: res => {
}
})
},
changeTime: function () {
console.log(this.single)
console.log(new Date(this.single).getTime())
console.log(new Date().getTime())
if(new Date(this.single).getTime()<new Date().getTime()){
uni.showToast({
title: '二维码有效期时间必须大于当前时间',
icon: 'none',
duration: 2000
})
}else{
this.deadline = this.single
this.getCouponStaticQR()
}
},
// 小程序保存图片
savePosterPath(url) {
console.log(url)
uni.getSetting({ //获取用户的当前设置
success: res => {
console.log('1')
if (res.authSetting['scope.writePhotosAlbum']) { //验证用户是否授权可以访问相册
this.saveImageToPhotosAlbum()
} else {
console.log('2')
uni.authorize({//重新发起获取授权
scope: 'scope.writePhotosAlbum',
success: () => {
this.saveImageToPhotosAlbum(url)
},
fail: () => {
uni.showToast({
title: '请打开保存相册权限，再点击保存相册分享',
icon: 'none',
duration: 2000
})
let timer = setTimeout(() => {
clearTimeout(timer)
uni.openSetting({ //调起客户端小程序设置界面,让用户开启访问相册
success: e => {
}
})
}, 2000)
}
})
}
}
})
},
saveImageToPhotosAlbum() {
console.log(this.qrUrl)
wx.downloadFile({
url: this.qrUrl,
success: res => {
if (res.statusCode === 200) {
wx.saveImageToPhotosAlbum({
filePath: res.tempFilePath,
success(res) {
wx.showToast({title: '保存图片成功！',})
},
fail(res) {
wx.showToast({title: '保存图片失败！',})
}
})
}
},
fail: err => {
console.log(err, 'err')
}
})
},
}
}
</script>
<style lang="scss" scoped>
</style>