`
sailei1
  • 浏览: 127012 次
  • 性别: Icon_minigender_1
  • 来自: 北京
社区版块
存档分类
最新评论

html5 离线读取图片

 
阅读更多
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>

</head>
<body >

<img id='xx' src='data:image/gif;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wBDAAkGBwgHBgkIBwgKCgkLDRYPDQwMDRsUFRAWIB0iIiAd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'/>
<br/>

离线图片:<br/>
<script>








var storage = window.localStorage;
var details = {author:"isaac","description":"fresheggs","rating":100};
storage.setItem("details",JSON.stringify(details));
details = JSON.parse(storage.getItem("details"));
navigator.onLine ? 'online' : 'offline';
var  image=document.getElementById('xx'); 
console.log(image.src);
storage.setItem('src',image.src );

var img = new Image();
img.src =storage.getItem("src");
      img.onload = function(){
    	  //var can = document.getElementById('canvas');
    	  var can =  document.createElement("canvas");
    	  document.body.appendChild(can);
        can.width  = img.width;
        can.height = img.height;
        var ctx = can.getContext("2d");
        ctx.drawImage(img, 0, 0, img.width, img.height);
      
      }
 
</script>

</body>
</html>
分享到:
评论

相关推荐

Global site tag (gtag.js) - Google Analytics