使用JS调用手机摄像头和相册

Html

<h2 class="title-detail">图片描述</h2>
<input type="hidden" id="picIndex" value="0">
<div id='image-list' class="row image-list">
	 <div class="image-item space" onclick="showActionSheet()">
	 	<div class="image-up"></div>
	 </div>
</div>

JS

//图片显示
       function showPics(url,name){    	   
    	 //根据路径读取到文件 
           plus.io.resolveLocalFileSystemURL(url,function(entry){
        	   entry.file( function(file){
        		   var fileReader = new plus.io.FileReader();
        		   fileReader.readAsDataURL(file);
                   	   fileReader.onloadend = function(e) {
                	       var picUrl = e.target.result.toString();
                	       var picIndex = $("#picIndex").val();
	               		var nowIndex = parseInt(picIndex)+1;
	               		$("#picIndex").val(nowIndex);
	               		var html = '';
	               		html += '<div class="image-item " id="item'+nowIndex+'">';
	               		html += '<div class="image-close" onclick="delPic('+nowIndex+')">X</div>';
	               		html += '<div><img src="'+picUrl+'" class="upload_img" style="width:100%;height:100%;"/></div>';
	               		html += '</div>';
	               		html += $("#image-list").html();
	               		$("#image-list").html(html); 
                   	}
        	   });
          }); 
       }
     	//压缩图片  
       function compressImage(url,filename){  
           var name="_doc/upload/"+filename;
           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:40,//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(zip) {
            	   //页面显示图片
            	   showPics(zip.target,name);
               },function(error) {  
                   plus.nativeUI.toast("压缩图片失败，请稍候再试");  
           });  
       } 
      
     	//调用手机摄像头并拍照
       function getImage() {  
           var cmr = plus.camera.getCamera();  
           cmr.captureImage(function(p) {  
               plus.io.resolveLocalFileSystemURL(p, function(entry) {  
                   compressImage(entry.toLocalURL(),entry.name);  
               }, function(e) {  
                   plus.nativeUI.toast("读取拍照文件错误：" + e.message);  
               });  
           }, function(e) {  
           }, {  
               filter: 'image' 
           });  
       }
       //从相册选择照片
       function galleryImgs() {  
    	    plus.gallery.pick(function(e) {  
    	    	var name = e.substr(e.lastIndexOf('/') + 1);
    	       compressImage(e,name);
    	    }, function(e) {  
    	    }, {  
    	        filter: "image"  
    	    });  
    	}
       
       //点击事件，弹出选择摄像头和相册的选项
    	function showActionSheet() {  
    	    var bts = [{  
    	        title: "拍照"  
    	    }, {  
    	        title: "从相册选择"  
    	    }];  
    	    plus.nativeUI.actionSheet({  
    	            cancel: "取消",  
    	            buttons: bts  
    	        },  
    	        function(e) {  
    	            if (e.index == 1) {  
    	                getImage();  
    	            } else if (e.index == 2) {  
    	                galleryImgs();  
    	            }  
    	        }  
    	    );  
    	}

原文：https://blog.csdn.net/u013185616/article/details/53195820