2019年 dede网站,建设工程管理有限公司,韩国男女做游戏视频网站,小工程承包网app前言
uniapp#xff0c;碰到新需求#xff0c;反转摄像头#xff0c;需要在打卡的时候对上传图片加上水印#xff0c;拍照前就显示当前时间日期地点#xff0c;拍摄后在呈现刚才拍摄的图加上水印#xff0c;最好还需要将图片上传到阿里云。
声明
水印部分代码是借鉴的…前言
uniapp碰到新需求反转摄像头需要在打卡的时候对上传图片加上水印拍照前就显示当前时间日期地点拍摄后在呈现刚才拍摄的图加上水印最好还需要将图片上传到阿里云。
声明
水印部分代码是借鉴的这位博主的博客剩下的是我根据自己的需求加上的。水印部分看原博主博客就行。 小晗同学 - 原小程序拍照水印绘制博主博客链接跳转
效果预览
拍摄前预览 右上角切换前后摄像头 底部时间和位置信息这里位置替换掉真实位置了代码里没变 拍摄后效果
水印组件代码
templateview classcamera-wrapper!-- 拍照 --template v-if!snapSrc!-- 相机 --camera :device-positioncameraPosition flashoff errorhandleError classimage-sizeview classphoto-btn clickhandleTakePhoto拍照/viewview classiconfont icon-qiehuanshexiangtou switch-camera-btn clickhandleSwitchCamera/viewview classtime-wrapview{{ new Date().toLocaleString() }}/viewview{{ location_data }}/view!-- view这里是位置信息,/view --/view/camera!-- 水印 --canvas canvas-idphotoMarkCanvas idphotoMarkCanvas classmark-canvas:style{ width: canvasWidth px, height: canvasHeight px } //template!-- 预览 --template v-else!-- view classre-photo-btn btn clickhandleRephotograph重拍/view --!-- view classre-fanhui-btn btn clickfanhui返回/view --image classimage-size :srcsnapSrc/image/template/view
/template
script
const util_two require(../../static/utils/util_two.js)
const upload require(../../static/utils/upload.js)
export default {name: CameraSnap,props: {// 照片地址若传递了照片地址则默认为预览该照片或添加水印后预览photoSrc: {type: String,default: },// 水印类型markType: {type: String,default: fixed, // 定点水印 fixed背景水印 background},// 水印文本列表支持多行markList: {type: Array,default: () []},textColor: {type: String,default: #FFFFFF},textSize: {type: Number,default: 32},// 定点水印的遮罩为了让水印更清楚useTextMask: {type: Boolean,default: true}},data() {return {snapSrc: ,canvasWidth: ,canvasHeight: ,cameraPosition: back, // 默认为后置摄像头inputText: , // 用户输入的文本location: null, // 存储位置信息location_data: ,photocount: 10,hasUserInfo: false,productInfo: [],fileurl: [],prveImgInfo: [],imgs: [],arrImg: [],imgQueRemData: [],//确实上传数据源// 位置和时间日期}},watch: {photoSrc: {handler: function (newValue, oldValue) {if (newValue) {this.getWaterMarkImgPath(newValue)}},immediate: true}},mounted() {uni.getLocation({type: wgs84, // 获取经纬度坐标success: (res) {this.location res;setTimeout(() {this.GetMapData();}, 1000);},fail: (err) {console.error(获取位置信息失败, err);}});},methods: {closeCamera() {this.$emit(close); // 发送一个事件通知父组件关闭 CameraSnap 组件},handleTakePhoto() {// const that thisconst ctx uni.createCameraContext();ctx.takePhoto({quality: high,success: (res) {const imgPath res.tempImagePathif (this.markList.length) {this.getWaterMarkImgPath(imgPath)this.$emit(watermarkPath, this.snapSrc);} else {this.snapSrc imgPath;this.$emit(complete, imgPath)this.$emit(watermarkPath, this.snapSrc);}}});},handleRephotograph() {this.snapSrc },handleSwitchCamera() {this.cameraPosition this.cameraPosition front ? back : front; // 切换摄像头},handleError(err) {uni.showModal({title: 警告,content: 若不授权使用摄像头将无法使用拍照功能,cancelText: 不授权,confirmText: 授权,success: (res) {if (res.confirm) {// 允许打开授权页面调起客户端小程序设置界面返回用户设置的操作结果uni.openSetting({success: (res) {res.authSetting { scope.camera: true }},})} else if (res.cancel) {// 拒绝打开授权页面uni.showToast({ title: 您已拒绝授权无法进行拍照, icon: error, duration: 2500 });}}})},setWaterMark(context, image) {const listLength this.markList?.lengthswitch (this.markType) {case fixed:const spacing 6 // 行间距const paddingTopBottom 60 // 整体上下间距// 默认每行的高度 字体高度 向下间隔const lineHeight this.textSize spacingconst allLineHeight lineHeight * listLength// 矩形遮罩的 Y 坐标const maskRectY image.height - allLineHeight// 绘制遮罩层if (this.useTextMask) {context.setFillStyle(rgba(0,0,0,0.4));context.fillRect(0, maskRectY - paddingTopBottom, image.width, allLineHeight paddingTopBottom)}// 文本与 x 轴之间的间隔const textX 40// 文本一行的最大宽度减去 20 是为了一行的左右留间隙const maxWidth image.width - 20context.setFillStyle(this.textColor)context.setFontSize(this.textSize)this.markList.forEach((item, index) {// 因为文本的 Y 坐标是指文本基线的 Y 轴坐标所以要获取文本顶部的 Y 坐标const textY maskRectY - paddingTopBottom / 2 this.textSize lineHeight * indexcontext.fillText(item, textX, textY, maxWidth);})break;case background:context.translate(0, 0);context.rotate(30 * Math.PI / 180);context.setFillStyle(this.textColor)context.setFontSize(this.textSize)const colSize parseInt(image.height / 6)const rowSize parseInt(image.width / 2)let x -rowSizelet y -colSize// 循环绘制 5 行 6 列 的文字for (let i 1; i 6; i) {for (let j 1; j 5; j) {context.fillText(this.markList[0], x, y, rowSize)// 每个水印间隔 20x rowSize 20}y colSizex -rowSize}break;}context.save();},getWaterMarkImgPath(src) {const _this thisuni.getImageInfo({src,success: (image) {this.canvasWidth image.widththis.canvasHeight image.heightconst context uni.createCanvasContext(photoMarkCanvas, this)context.drawImage(src, 0, 0, image.width, image.height)// 设置水印this.setWaterMark(context, image)// 若还需其他操作可在操作之后叠加保存context.restore()// 将画布上的图保存为图片context.draw(false, () {setTimeout(() {uni.canvasToTempFilePath({destWidth: image.width,destHeight: image.height,canvasId: photoMarkCanvas,fileType: jpg,success: function (res) {console.log(将画布上的图保存为图片, JSON.parse(JSON.stringify(res)));_this.snapSrc res.tempFilePathconst tempFilePath res.tempFilePath;const tempFilePathArray [tempFilePath];_this.uploadimg({path: tempFilePathArray //这里是选取的图片的地址数组});_this.$emit(complete, _this.snapSrc)}},_this);}, 200)});}})},fanhui() {this.closeCamera();},sendUploadedImagesToParent() {this.$emit(imagesUploaded, this.prveImgInfo);// prveImgInfo imgs},//多张图片上传 服务器uploadimg: function (data) {// 这两个是对应的传递的就是这个路径var that this;// var orderid that.XmID;//项目idvar orderid ;// var gsid ;let photocount 9;var i data.i ? data.i : 0; //当前上传的哪张图片var success data.success ? data.success : 0; //上传成功的个数var fail data.fail ? data.fail : 0; //上传失败的个数//上传到阿里云util_two.request(uni.$baseUrlweb /api/xcx/oss/fankui).then(function (result) {if (result.code 0) {// var filePath data.path;var filePath data.path[i];var filename result.dir orderid upload.calculate_object_name(filePath, );uni.uploadFile({url: result.host,filePath: filePath,name: file,/**上传的参数**/formData: {key: filename, // 文件名policy: result.policy,OSSAccessKeyId: result.accessid,success_action_status: 200,signature: result.signature,callback: result.callback},success: (resp) {if (resp.statusCode 200) {success; //图片上传成功图片上传成功的变量1photocount--;var show_url result.host / filename result.style1;var productInfo that.productInfo;productInfo.push(show_url);var prve_url result.host / filename result.style2;var prveImgInfo that.prveImgInfo;prveImgInfo.push(prve_url);that.sendUploadedImagesToParent();var up_url filename;var fileurl that.fileurl;fileurl.push(up_url);let n i 1;uni.showLoading({title: n / data.path.length 上传成功, //这里打印出 上传成功})}},fail: (res) {fail; //图片上传失败图片上传失败的变量1uni.showLoading({title: (i 1) / data.path.length 上传失败, //这里打印出 上传成功})},complete: (res) {i; //这个图片执行完上传后开始上传下一张if (i data.path.length) { //当图片传完时停止调用 // 添加上传数据that.imgQueRemData.push(filename)// 添加到展示数组const path result.host / filename result.style1that.arrImg.push(path)that.imgs.push(path)uni.hideLoading();that.closeCamera();if (success i) {uni.showToast({title: 组图上传完成, //这里打印出 上传成功icon: success,duration: 1000})} else {uni.showModal({title: 组图上传失败, //这里打印出 上传成功content: 请稍后再试,showCancel: false})}} else { //若图片还没有传完则继续调用函数data.i i;data.success success;data.fail fail;that.uploadimg(data);}}});}})},// 获取具体位置信息async GetMapData() {const res await this.$axios(work/getMap, {lat: this.location.latitude,lon: this.location.longitude});if (res.data.code 0) {this.location_data res.data.result;} else {uni.showToast({title: res.data.msg,icon: none,duration: 1000})}},}
}
/script
style langscss scoped
.icon-qiehuanshexiangtou {font-size: 30px;
}.camera-wrapper {position: relative;
}.switch-camera-btn {position: absolute;top: 20px;right: 20px;color: #fff;font-size: 16px;cursor: pointer;
}.mark-canvas {position: absolute;/* 将画布移出展示区域 */top: -200vh;left: -200vw;
}.image-size {width: 100%;height: 100vh;
}.photo-btn {position: absolute;bottom: 120rpx;left: 50%;transform: translateX(-50%);width: 140rpx;height: 140rpx;line-height: 140rpx;text-align: center;background-color: #000000;border-radius: 50%;border: 10rpx solid #ffffff;color: #fff;
}.btn {padding: 10rpx 20rpx;background-color: #000000;border-radius: 10%;border: 6rpx solid #ffffff;color: #fff
}.re-photo-btn {position: absolute;bottom: 150rpx;right: 40rpx;}.re-fanhui-btn {position: absolute;bottom: 150rpx;right: 180rpx;}.re-fanhui-tijao {position: absolute;bottom: 150rpx;right: 320rpx;}.time-wrap {position: absolute;left: 1rem;bottom: 1rem;color: white;
}
/style
使用水印相机组件代码
templateviewview classqianDao_imgview classimgsview stylemargin-right: 10px;照片:/viewview clickpaizhao classpaizhaoview classiconfont icon-paizhao1/view/view/viewview classimg_wrapimage v-for(item, index) in shuiyinImg :keyindex :srcitem modescaleToFillclickSYpreviewImage(index) longpressSYdeleteImage(index) //view/view!-- button clickpaizhao拍照/button --view classfull-screen v-ifpaizhaoTypeCameraSnap imagesUploadedhandleImagesUploaded closepaizhaoType false:mark-list[new Date().toLocaleString(), location_data] textSize24 useTextMask //viewview classBom_Btnview clickBaoCunAction classBom_Btn_logview提交/view/view/view/view
/templatescriptimport CameraSnap from ../CameraSnap.vueexport default {data() {return {paizhaoType: false,location: null, // 存储位置信息location_data: ,// 水印图片shuiyinImg: ,};},components: {CameraSnap,},onLoad(options) {uni.getLocation({type: wgs84, // 获取经纬度坐标success: (res) {this.location res;setTimeout(() {this.GetMapData();}, 1000);},fail: (err) {console.error(获取位置信息失败, err);}});},methods: {// 这里是水印图片handleImagesUploaded(images) {console.log(成功上传的图片数据, images);this.shuiyinImg [...this.shuiyinImg, ...images];},paizhao() {this.paizhaoType true;},// 获取具体位置信息async GetMapData() {const res await this.$axios(work/getMap, {lat: this.location.latitude,lon: this.location.longitude});if (res.data.code 0) {this.location_data res.data.result;} else {uni.showToast({title: res.data.msg,icon: none,duration: 1000})}},// 水印图片预览SYpreviewImage(index) {uni.previewImage({urls: this.shuiyinImg,current: index, // 当前显示图片的索引loop: true // 是否开启图片轮播});},// 长按删除水印图片SYdeleteImage(index) {uni.showModal({title: 提示,content: 确定要删除这张图片吗,success: (res) {if (res.confirm) {this.shuiyinImg.splice(index, 1);}}});},}
}
/scriptstyle langscss scoped
.full-screen {position: fixed;top: 0;left: 0;width: 100vw;height: 100vh;// background-color: rgba(0, 0, 0, 0.5); /* 半透明背景 */z-index: 9999;/* 确保在最顶层显示 */
}// 签到图片
.qianDao_img {// padding: 15px;border-top: 1px solid #dddddf;background-color: white;// 图片.imgs {padding: 15px;display: flex;align-items: center;flex-wrap: wrap;}.img_wrap {padding: 10px;display: flex;// justify-content: space-around;flex-wrap: wrap;image {width: 80px;height: 80px;margin-bottom: 5px;margin: 4px;}}// 上传图片.paizhao {width: 80px;height: 80px;// border: 1px solid red;margin: 10px 0;background-color: #f7f8fa;.icon-paizhao1 {// border: 1px solid red;width: 50%;font-size: 22px;padding-left: 25px;padding-top: 25px;}}
}.Bom_Btn {width: 100%;padding: 10px;position: absolute;bottom: 0;left: 0;border-top: 1px solid #ededed;background-color: white;z-index: 2;.Bom_Btn_log {width: 70%;// display: flex;// align-items: center;// justify-content: center;// margin: auto;padding: 10px 0;margin: auto;}view {border-radius: 5px;text-align: center;color: white;background-color: #1989fa;}
}
/style
只能说勉强够用算不上精细凑合看把引入的两个js文件 都是辅助上传阿里云图片的就是格式啥的进行校验就没必要上传了看懂整个思路就行具体代码肯定还是需要根据自己的情况进行改动的
