详解微信小程序-扫一扫 wx.scanCode() 扫码大变身
程序员文章站
2022-05-26 11:50:49
效果
js
let app = getapp();
page({
data: {
img: "/images/1.jpg"
},...
效果
js
let app = getapp(); page({ data: { img: "/images/1.jpg" }, onload() { }, scan() { wx.scancode({ success: (res) => { console.log("扫码结果"); console.log(res); this.setdata({ img: res.result }) }, fail: (res) => { console.log(res); } }) } })
html
<view class="view"> <image class="cover-9" src="{{img}}" bindtap="img"></image> <button type="primary" bindtap="scan" id="scan">扫一扫</button> </view>
css
page{ height: 100%; } .view{ width: 100%; height: 100%; } .cover-9{ width: 688rpx; height: 80%; margin: 0 30rpx; border:2rpx solid; border-radius:5px; } button{ margin: 0 10rpx; width: 100%; } #scan{ width: 730rpx; }
其实就是"/images/2.jpg"和"/images/3.jpg"2个字符串生成二维码,
然后在images文件夹下放对应路径的2张图片,
扫一扫二维码重新赋值。
参考地址:
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