小程序的一个扫码页面，扫码界面一直开着，同时可以处理其他功能，如下：由于直接调用微信的scanCode，无法自定义界面，所以只能使用原生组件camera，完成这个功能，关于扫描框的四个角的图片，就自己画一下吧，中间的移动横线，使用了小程序的动画功能，在原生camera组件上，覆盖需要用到cover-view和cover-image，同时加入了提示音
/**scan.wxss**/
.scan-view {

width: 100%;

height: 100%;

display: flex;

flex-direction: column;

background-color: #B9BEC4;

position: fixed;

align-items: center;

justify-content: space-around;
}
 
.scan-border {

width: 94%;

height: 94%;

border: 6rpx solid #08FDFE;

border-radius: 10rpx;

display: flex;

flex-direction: column;

align-items: center;
}
 
.scan-camera {

width: 500rpx;

height: 500rpx;

border-radius: 6rpx;

margin: 30rpx;
}
 
.cover-corner {

width: 80rpx;

height: 80rpx;

position: absolute;
}
 
.cover-left-top {

left: 0;

top: 0;
}
 
.cover-right-top {

right: 0;

top: 0;
}
 
.cover-left-bottom {

left: 0;

bottom: 0;
}
 
.cover-right-bottom {

right: 0;

bottom: 0;
}
 
.scan-animation {

position: absolute;

top: -10rpx;

left: 10rpx;

width: 480rpx;

height: 8rpx;

background-color: #08FDFE;

border-radius: 50%;
}
/**scan.wxss**/
.scan-view {

width: 100%;

height: 100%;

display: flex;

flex-direction: column;

background-color: #B9BEC4;

position: fixed;

align-items: center;

justify-content: space-around;
}
 
.scan-border {

width: 94%;

height: 94%;

border: 6rpx solid #08FDFE;

border-radius: 10rpx;

display: flex;

flex-direction: column;

align-items: center;
}
 
.scan-camera {

width: 500rpx;

height: 500rpx;

border-radius: 6rpx;

margin: 30rpx;
}
 
.cover-corner {

width: 80rpx;

height: 80rpx;

position: absolute;
}
 
.cover-left-top {

left: 0;

top: 0;
}
 
.cover-right-top {

right: 0;

top: 0;
}
 
.cover-left-bottom {

left: 0;

bottom: 0;
}
 
.cover-right-bottom {

right: 0;

bottom: 0;
}
 
.scan-animation {

position: absolute;

top: -10rpx;

left: 10rpx;

width: 480rpx;

height: 8rpx;

background-color: #08FDFE;

border-radius: 50%;
}






















































// scan.js
// 移动动画
let animation = wx.createAnimation({});
// 提示音
let innerAudioContext = wx.createInnerAudioContext()
innerAudioContext.src = '/images/beep.mp3'
 
Page({

data: {



},

onLoad: function () {



},

onShow(){

this.donghua()

},

donghua(){

var that = this;

// 控制向上还是向下移动

let m = true



setInterval(function () {

if (m) {

animation.translateY(250).step({ duration: 3000 })

m = !m;

} else {

animation.translateY(-10).step({ duration: 3000 })

m = !m;

}
 

that.setData({

animation: animation.export()

})

}.bind(this), 3000)

},

scancode(e){

// 提示音

innerAudioContext.play()

// 校验扫描结果，并处理

let res = e.detail.result

}
})
// scan.js
// 移动动画
let animation = wx.createAnimation({});
// 提示音
let innerAudioContext = wx.createInnerAudioContext()
innerAudioContext.src = '/images/beep.mp3'
 
Page({

data: {



},

onLoad: function () {



},

onShow(){

this.donghua()

},

donghua(){

var that = this;

// 控制向上还是向下移动

let m = true



setInterval(function () {

if (m) {

animation.translateY(250).step({ duration: 3000 })

m = !m;

} else {

animation.translateY(-10).step({ duration: 3000 })

m = !m;

}
 

that.setData({

animation: animation.export()

})

}.bind(this), 3000)

},

scancode(e){

// 提示音

innerAudioContext.play()

// 校验扫描结果，并处理

let res = e.detail.result

}
})总结总结总结