带有预览和删除选项的图像上传 - Javascript/Jquery

Question

我有下面的代码完美运行并上传多个图像.

这是html和jQuery代码:

<div class="field" align="left">
            <span>
                <h3>Upload your images</h3>
                <input type="file" id="files" name="files[]" multiple />
            </span>
        </div>

脚本如下:

<style>
    input[type="file"] {

     display:block;
    }
    .imageThumb {
     max-height: 75px;
     border: 2px solid;
     margin: 10px 10px 0 0;
     padding: 1px;
     }
    </style>
    <script type="text/javascript">
    $(document).ready(function() {

     if(window.File && window.FileList && window.FileReader) {
        $("#files").on("change",function(e) {
            var files = e.target.files ,
            filesLength = files.length ;
            for (var i = 0; i < filesLength ; i++) {
                var f = files[i]
                var fileReader = new FileReader();
                fileReader.onload = (function(e) {
                    var file = e.target;
                    $("<img></img>",{
                        class : "imageThumb",
                        src : e.target.result,
                        title : file.name
                    }).insertAfter("#files");
               });
               fileReader.readAsDataURL(f);
           }
      });
     } else { alert("Your browser doesn't support to File API") }
    });

    </script>

该代码添加了多个图像并显示了图像的预览.但是现在我希望当用户点击某个按钮时,让我们说删除每个上传的图像,它应该被删除.没有隐藏.

任何帮助将不胜感激!

Answer 1

尝试添加这个:.click(function(){$(this).remove();});.它将通过单击删除图像.

编辑包括改进版本.

$(document).ready(function() {
  if (window.File && window.FileList && window.FileReader) {
    $("#files").on("change", function(e) {
      var files = e.target.files,
        filesLength = files.length;
      for (var i = 0; i < filesLength; i++) {
        var f = files[i]
        var fileReader = new FileReader();
        fileReader.onload = (function(e) {
          var file = e.target;
          $("<span class=\"pip\">" +
            "<img class=\"imageThumb\" src=\"" + e.target.result + "\" title=\"" + file.name + "\"/>" +
            "<br/><span class=\"remove\">Remove image</span>" +
            "</span>").insertAfter("#files");
          $(".remove").click(function(){
            $(this).parent(".pip").remove();
          });
          
          // Old code here
          /*$("<img></img>", {
            class: "imageThumb",
            src: e.target.result,
            title: file.name + " | Click to remove"
          }).insertAfter("#files").click(function(){$(this).remove();});*/
          
        });
        fileReader.readAsDataURL(f);
      }
    });
  } else {
    alert("Your browser doesn't support to File API")
  }
});

input[type="file"] {
  display: block;
}
.imageThumb {
  max-height: 75px;
  border: 2px solid;
  padding: 1px;
  cursor: pointer;
}
.pip {
  display: inline-block;
  margin: 10px 10px 0 0;
}
.remove {
  display: block;
  background: #444;
  border: 1px solid black;
  color: white;
  text-align: center;
  cursor: pointer;
}
.remove:hover {
  background: white;
  color: black;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="field" align="left">
  <h3>Upload your images</h3>
  <input type="file" id="files" name="files[]" multiple />
</div>