plugin-- center the image preview - without cropping (compatible with IE8, IE9, IE10, IE11, Google)

This plug-in is compatible with IE8, IE9, IE10, IE11, Google

html page structure:

<! - parent container onclick input onclick event and the event binding ->

<div class="upload" id="parentDiv" onclick="inputFile.click()">

<input class="change" id="inputFile" type="file" multiple="multiple" />

<img class="showImg" id="previewImage" />

</div>

css style:

body {

display: flex;

justify-content: center;

align-items: center;

}

.upload {

display: inline-block;

position: relative;

background-image: url ( 'img / wuti.jpg'); / * background * default parent vessel /

background-repeat: no-repeat;

background-size: cover;

border: solid 1px red;

width: 300px; / * set the parent container must aspect, the aspect ratio of the parent container if it is 1: 1, preview images may not be displayed completely * /

height: 300px;

display: flex;

justify-content: center;

align-items: center;

}

.upload .change {

position: absolute;

overflow: hidden;

right: 0;

top: 0;

opacity: 0;

}

.upload .showImg {

display: none;

}

js call:

var paramObj = {

parentDivId: 'parentDiv',

previewImageId: 'previewImage',

inputFileId: 'inputFile'

}

PPPlugin.previewFunc(paramObj);

 

Download plug-picture.preview.plugin.js

picture.preview.plugi

n.js

3.47KB

 

 

Download the complete demo:

picturePrevie

w.rar

53.58KB

When the picture is not selected:

 

Select the run effect diagram:

 

Welcome exchanges, correct me, there are problems contact me [email protected]

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Origin blog.csdn.net/weixin_28898107/article/details/88642407