(编辑:jimmy 日期: 2024/12/28 浏览:2)
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.wxml--> <view class="scan-view"> <view class='scan-border'> <camera class='scan-camera' mode="scanCode" binderror="cameraError" bindscancode='scancode' frame-size='large'> <cover-image class='cover-corner cover-left-top' src='/images/left-top.png'></cover-image> <cover-image class='cover-corner cover-right-top' src='/images/right-top.png'></cover-image> <cover-image class='cover-corner cover-left-bottom' src='/images/left-bottom.png'></cover-image> <cover-image class='cover-corner cover-right-bottom' src='/images/right-bottom.png'></cover-image> <cover-view class='scan-animation' animation="{{animation}}"></cover-view> </camera> <!-- 这里可以处理其他内容 --> </view> </view>
// 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