悬停上的Jquery图像生成输入类型文件

Question

当我将图标显示在图像上时.但我想显示这样的图标

当我点击时,它应该允许浏览像这样的文件

<input type ='file'>

我怎样才能做到这一点？

我试着把文件标签放到所有,但它没有用.我怎样才能做到这一点？

.profile-img-container {
  position: absolute;
  width:50%;
}

.profile-img-container img:hover {
  opacity: 0.5;
  z-index: 501;
}

.profile-img-container img:hover + i {
  display: block;
  z-index: 500;
}

.profile-img-container i {
  display: none;
  position: absolute;
  margin-left:43%;
  margin-top:40%;
}

.profile-img-container img {
  position:absolute;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet" />
<link href="http://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet" />
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>

<div class="profile-img-container">
  <img src="http://s3.amazonaws.com/37assets/svn/765-default-avatar.png" class="img-thumbnail img-circle img-responsive" />
  <i class="fa fa-upload fa-5x"></i>
</div>

小提琴

Answer 1

您应该在代码中添加一个输入文件,但使其不可见,然后您可以使用jQuery进行文件浏览.

HTML:

<input id='uploadfile' type ='file'>

JS:

$('.profile-img-container img').click(function(){
    $('#uploadfile').click();
});

工作小提琴

未来问题的第二种方式:

<input id='uploadfile' type ='file'>

input#uploadfile {
    width: 200px;
    height: 200px;
    background: url('http://s3.amazonaws.com/37assets/svn/765-default-avatar.png');
    border-radius: 50%;
    display: block;
    padding-top: 23.5%;
    box-sizing: border-box;
    overflow: hidden;
    background-size: 100%;
}

工作小提琴

Answer 2

您需要input[type="file"]在代码中添加一个并使其不可见.此外,因此它需要所有的img地方,将其设置position到absolute和所有其他的样式,以便它把所有的地方.

像这样:

.profile-img-container {
  position: absolute;
  /*width:50%;*/
  /*border-radius:50%;*/
  overflow:hidden;
}

.profile-img-container img:hover {
  opacity: 0.5;
  z-index: 501;
}

.profile-img-container img:hover + i {
  display: block;
  z-index: 500;
}

.profile-img-container .icon-wrapper {
  position: absolute;
  bottom:0;
  left:0;
  background:rgba(0,0,0,0.7);
  color:#fff;
  text-align:center;
  width:100%;
  padding:5px;
}

/*.profile-img-container img {
position:absolute;
}*/

/*.profile-img-container {
  position:relative;
}*/

input[type="file"] {
  opacity:0;
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css" rel="stylesheet" />
<link href="http://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet" />
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>

<div class="profile-img-container img-circle">
  <input type="file" />
  <img src="http://s3.amazonaws.com/37assets/svn/765-default-avatar.png" class="img-thumbnail img-circle img-responsive" />
  <div class="icon-wrapper">
    <i class="fa fa-upload fa-5x"></i>
  </div>
</div>