利用HTML Plus的Camera、GalleryIO、Storage和Uploader来实现手机APP拍照或者从相册选择图片上传。Camera模块管理设备的摄像头，可用于拍照、摄像操作，通过plus.camera获取摄像头管理对象。Gallery模块管理系统相册，支持从相册中选择图片或视频文件、保存图片或视频文件到相册等功能。通过plus.gallery获取相册管理对象。IO模块管理本地文件系统，用于对文件系统的目录浏览、文件的读取、文件的写入等操作。通过plus.io可获取文件系统管理对象。Storage模块管理应用本地数据存储区，用于应用数据的保存和读取。应用本地数据与localStorage、sessionStorage的区别在于数据有效域不同，前者可在应用内跨域操作，数据存储期是持久化的，并且没有容量限制。通过plus.storage可获取应用本地数据管理对象。Uploader模块管理网络上传任务，用于从本地上传各种文件到服务器，并支持跨域访问操作。通过plus.uploader可获取上传管理对象。Uploader上传使用HTTP的POST方式提交数据，数据格式符合Multipart/form-data规范，即rfc1867（Form-based File Upload in HTML）协议。
XML/HTML Code复制内容到剪贴板 <!doctype html> <html class="feedback"> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,user-scalable=no" /> <meta name="misapplication-tap-highlight" content="no" /> <meta name="HandheldFriendly" content="true" /> <meta name="MobileOptimized" content="320" /> <title>HTML5 Plus 拍照或者相册选择图片上传</title> <link rel="stylesheet" href="../../css/mui.min.css"> <link rel="stylesheet" type="text/css" href="../../css/app.css" /> <link rel="stylesheet" type="text/css" href="../../css/iconfont.css" /> <link rel="stylesheet" type="text/css" href="../../css/feedback-page.css" /> <link rel="stylesheet" href="../../css/font-awesome.min.css"> <script src="../../js/jquery.js"></script> <script type="text/javascript" src="../../js/common.js"></script> <script type="text/javascript" src="../../js/utitls.js"></script> <script type="text/javascript" src="http://api.map.baidu.com/api?ak=59PBaEOro16CiH2W4CG81zEN&v=2.0"></script> <style type="text/css"> .del { position: absolute; top:1px; right: 1px; display: block; line-height: 1; cursor: pointer; color:#fff; } .del:hover { color:#ff3333; } </style> <style> .table-view { position: relative; margin-top: 0; margin-bottom: 0; padding-left: 0; list-style: none; background-color: #f5f5f5; } .table-view-cell { position: relative; overflow: hidden; padding: 0px 15px; -webkit-touch-callout: none; margin-bottom: 1px; } .table-view-cell:after { position: absolute; right: 0; bottom: 0; left: 0px; height: 1px; content: ; -webkit-transform: scaleY(.5); transform: scaleY(.5); background-color: #c8c7cc; } .table-view-cell>a:not(.btn) { position: relative; display: block; overflow: hidden; margin: -0px -15px; padding: inherit; white-space: nowrap; text-overflow: ellipsis; color: inherit; background-color: #75b9f4; height: 40px; line-height: 40px; } .navigate-right:after { font-family: Muiicons; font-size: inherit; line-height: 1; position: absolute; top: 50%; display: inline-block; -webkit-transform: translateY(-50%); transform: translateY(-50%); text-decoration: none; color: #666; -webkit-font-smoothing: antialiased; } .table-view-cell.collapse .collapse-content { position: relative; display: none; overflow: hidden; margin: 0px -15px 0px; padding: 0px 0px !important; -webkit-transition: height .35s ease; -o-transition: height .35s ease; transition: height .35s ease; background-color: transparent; } .image-item{ position: relative; } .image-item .info{ position: absolute; top:0px; left:4px; color: #ff9900; font-size: 12px; } </style> </head> <body> <header class="bar bar-nav"> <h1 class="title">拍照或者相册选择图片上传</h1> </header> <div class="content"> <div style="margin-top: 10px;"></div> <input type="hidden" id="ckjl.id" name="ckjl.id" value="429"> <div class="collapse-content" > <form> <label class="row-label"></label> <div id=F_CKJLBS class="row image-list"> <div class="image-item " id="F_CKJLB" onclick="showActionSheet(this);"></div> </div> </form> </div> </div> <script src="../../js/mui.min.js"></script> <script> var procinstid = 0; //初始化页面执行操作 function plusReady() { //Android返回键监听事件 plus.key.addEventListener(backbutton,function(){ myclose(); },false); } if (window.plus) { plusReady(); } else { document.addEventListener(plusready, plusReady, false); } //加载页面初始化需要加载的图片信息 //或者相册IMG_20160704_112620.jpg //imgId:图片名称：1467602809090或者IMG_20160704_112620 //imgkey:字段例如：F_ZDDZZ //ID：站点编号ID,例如429 //src：src="file:///storage/emulated/0/Android/data/io.dcloud.HBuilder/.HBuilder/apps/HBuilder/doc/upload/F_ZDDZZ-1467602809090.jpg" function showImgDetail (imgId,imgkey,id,src) { var html = ""; html +=<div id="Img+imgId+imgkey+" class="image-item ">; html += <img id="picBig" data-preview-src="" data-preview-group="1" +src+/>; html += <span class="del" onclick="delImg(+imgId+,+imgkey+,+id+);">; html += <div class="fa fa-times-circle"></div>; html += </span>; html +=</div>; $("#"+imgkey+"S").append(html); } //删除图片 //imgId:图片名称：IMG_20160704_112614 //imgkey:字段，例如F_ZDDZZ //ID：站点编号ID，例如429 function delImg(imgId,imgkey,id){ var bts = ["是", "否"]; plus.nativeUI.confirm("是否删除图片？", function(e) { var i = e.index; if (i == 0) { var itemname=id+"img-"+imgkey;//429img-F_ZDDZZ var itemvalue=plus.storage.getItem(itemname); //{IMG_20160704_112614,_doc/upload/F_ZDDZZ-IMG_20160704_112614.jpg,file:///storage/emulated/0/Android/data/io.dcloud...../doc/upload/F_ZDDZZ-1467602809090.jpg} if(itemvalue!=null){ var index=itemvalue.indexOf(imgId+","); if(index==-1){//没有找到 delImgfromint(imgId,imgkey,id,index); }else{ delImgFromLocal(itemname,itemvalue,imgId,imgkey,index); //修改，加了一个index参数 } }else{ delImgfromint(imgId,imgkey,id); } } },"查勘", bts); /*var isdel = confirm("是否删除图片？"); if(isdel == false){ return; }*/ } function delImgFromLocal(itemname,itemvalue,imgId,imgkey,index){ var wa = plus.nativeUI.showWaiting(); var left=itemvalue.substr(0,index-1); var right=itemvalue.substring(index,itemvalue.length); var end=right.indexOf("}"); rightright=right.substring(end+1,right.length); var newitem=left+right; plus.storage.setItem(itemname,newitem); myAlert("删除成功"); $("#Img"+imgId+imgkey).remove(); wa.close(); } //选取图片的来源，拍照和相册 function showActionSheet(conf){ var divid = conf.id; var actionbuttons=[{title:"拍照"},{title:"相册选取"}]; var actionstyle={title:"选择照片",cancel:"取消",buttons:actionbuttons}; plus.nativeUI.actionSheet(actionstyle, function(e){ if(e.index==1){ getImage(divid); }else if(e.index==2){ galleryImg(divid); } } ); } //相册选取图片 function galleryImg(divid) { plus.gallery.pick( function(p){ //alert(p);//file:///storage/emulated/0/DCIM/Camera/IMG_20160704_112620.jpg plus.io.resolveLocalFileSystemURL(p, function(entry) { //alert(entry.toLocalURL());//file:///storage/emulated/0/DCIM/Camera/IMG_20160704_112620.jpg //alert(entry.name);//IMG_20160704_112620.jpg compressImage(entry.toLocalURL(),entry.name,divid); }, function(e) { plus.nativeUI.toast("读取拍照文件错误：" + e.message); }); }, function ( e ) { }, { filename: "_doc/camera/", filter:"image" } ); } // 拍照 function getImage(divid) { var cmr = plus.camera.getCamera(); cmr.captureImage(function(p) { //alert(p);//_doc/camera/1467602809090.jpg plus.io.resolveLocalFileSystemURL(p, function(entry) { //alert(entry.toLocalURL());//file:///storage/emulated/0/Android/data/io.dcloud...../doc/camera/1467602809090.jpg //alert(entry.name);//1467602809090.jpg compressImage(entry.toLocalURL(),entry.name,divid); }, function(e) { plus.nativeUI.toast("读取拍照文件错误：" + e.message); }); }, function(e) { }, { filename: "_doc/camera/", index: 1 }); } //压缩图片 function compressImage(url,filename,divid){ var name="_doc/upload/"+divid+"-"+filename;//_doc/upload/F_ZDDZZ-1467602809090.jpg plus.zip.compressImage({ src:url,//src: (String 类型 )压缩转换原始图片的路径 dst:name,//压缩转换目标图片的路径 quality:20,//quality: (Number 类型 )压缩图片的质量.取值范围为1-100 overwrite:true//overwrite: (Boolean 类型 )覆盖生成新文件 }, function(event) { //uploadf(event.target,divid); var path = name;//压缩转换目标图片的路径 //event.target获取压缩转换后的图片url路 //filename图片名称 saveimage(event.target,divid,filename,path); },function(error) { plus.nativeUI.toast("压缩图片失败，请稍候再试"); }); } //保存信息到本地 /** * * @param {Object} url 图片的地址 * @param {Object} divid 字段的名称 * @param {Object} name 图片的名称 */ function saveimage(url,divid,name,path){ //alert(url);//file:///storage/emulated/0/Android/data/io.dcloud...../doc/upload/F_ZDDZZ-1467602809090.jpg //alert(path);//_doc/upload/F_ZDDZZ-1467602809090.jpg var state=0; var wt = plus.nativeUI.showWaiting(); // plus.storage.clear(); namename=name.substring(0,name.indexOf("."));//图片名称：1467602809090 var id = document.getElementById("ckjl.id").value; var itemname=id+"img-"+divid;//429img-F_ZDDZ var itemvalue=plus.storage.getItem(itemname); if(itemvalue==null){ itemvalue="{"+name+","+path+","+url+"}";//{IMG_20160704_112614,_doc/upload/F_ZDDZZ-IMG_20160704_112614.jpg,file:///storage/emulated/0/Android/data/io.dcloud...../doc/upload/F_ZDDZZ-1467602809090.jpg} }else{ itemvalueitemvalue=itemvalue+"{"+name+","+path+","+url+"}"; } plus.storage.setItem(itemname, itemvalue); var src = src="+url+"; //alert("itemvalue="+itemvalue); showImgDetail(name,divid,id,src); wt.close(); } //上传图片，实例中没有添加上传按钮 function uploadimge(agree,back) { //plus.storage.clear(); var wa = plus.nativeUI.showWaiting(); var DkeyNames=[]; var id = document.getElementById("ckjl.id").value; var length=id.toString().length; var ididnmae=id.toString(); var numKeys=plus.storage.getLength(); var task = plus.uploader.createUpload(getUrl() + url, { method: "POST" }, function(t, status) { if (status == 200) { console.log("上传成功"); $.ajax({ type: "post", url: getUrl() + url, data: { taskId: taskId, voteAgree: agree, back: back, voteContent: $("#assign").val(), }, async: true, dataType: "text", success: function(data) { wa.close(); goList(data); }, error: function() { wa.close(); myAlert("网络错误，提交审批失败，请稍候再试"); } }); } else { wa.close(); console.log("上传失败"); } } ); task.addData("id",id); for(var i=0; i<imgArray.length;i++){ var itemkey=id+"img-"+imgArray[i]; if(plus.storage.getItem(itemkey)!=null){ var itemvalue=plus.storage.getItem(itemkey).split("{"); for(var img=1;img<itemvalue.length;img++){ var imgname=itemvalue[img].substr(0,itemvalue[img].indexOf(",")); var imgurl=itemvalue[img].substring(itemvalue[img].indexOf(",")+1,itemvalue[img].lastIndexOf(",")); task.addFile(imgurl,{key:imgurl}); } } } task.start(); } </script> </body> </html>效果图：
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
原文链接：http://blog.csdn.net/qq_27626333/article/details/51896616
