最近闲着无聊，写了一个实用代码，AngularJS通过ng-Img-Crop实现头像截取，分享给大家
1.安装插件
bower install ngImgCrop
2.引入插件
<script src="ng-img-crop.js"></script> <link rel="stylesheet" type="text/css" href="ng-img-crop.css" rel="external nofollow" rel="external nofollow" >
3.添加依赖
var app = angular.module('myApp', ['ngImgCrop']);
4.用法
<img-crop image="myImage" result-image="myCroppedImage"></img-crop>
5.参数
<img-crop
image="{string}" //需要截取的图片变量名
result-image="{string}" //截取后所赋值的变量名
[change-on-fly="{boolean}"] //是否实时更新用户截取图像的预览,若为否,则会等用户停止动作后更新预览的图像
[area-type="{circle|square}"] //截取图像框的形状(圆形或正方形)
[area-min-size="{number}"] //截取图像框的最小面积
[result-image-size="{number}"] //截取后图像的大小
[result-image-format="{string}"] //截取后图像的格式
[result-image-quality="{number}"] //截取后图像的质量
[on-change="{expression}"]
[on-load-begin="{expression"]
[on-load-done="{expression"]
[on-load-error="{expression"]
></img-crop>
6.Demo
<html>
<head>
<script src="angular.js"></script>
<script src="ng-img-crop.js"></script>
<link rel="stylesheet" type="text/css" href="ng-img-crop.css" rel="external nofollow" rel="external nofollow" >
<style>
.cropArea {
background: #E4E4E4;
overflow: hidden;
width:500px;
height:350px;
}
</style>
<script>
angular.module('app', ['ngImgCrop'])
.controller('Ctrl', function($scope) {
$scope.myImage='';
$scope.myCroppedImage='';
var handleFileSelect=function(evt) {
var file=evt.currentTarget.files[0];
var reader = new FileReader();
reader.onload = function (evt) {
$scope.$apply(function($scope){
$scope.myImage=evt.target.result;
});
};
reader.readAsDataURL(file);
};
angular.element(document.querySelector('#fileInput')).on('change',handleFileSelect);
});
</script>
</head>
<body ng-app="app" ng-controller="Ctrl">
<div>Select an image file: <input type="file" id="fileInput" /></div>
<div class="cropArea">
<img-crop image="myImage" result-image="myCroppedImage"></img-crop>
<!-- 截取图片框 -->
</div>
<div>Cropped Image:</div>
<div><img ng-src="{{myCroppedImage}}" /></div>
<!-- 预览图片框 -->
</body>
</html>
7.官方文档
