上传Angularjs前预览图片
上传Angularjs前预览图片
提问于 2013-09-12 11:41:14
嗨，我想知道是否有一种方法可以在我使用angularjs上传图片之前预览它们？我正在使用这个库。https://github.com/danialfarid/angular-file-upload
谢谢。下面是我的代码：
template.html
<div ng-controller="picUploadCtr">
<form>
<input type="text" ng-model="myModelObj">
<input type="file" ng-file-select="onFileSelect($files)" >
<input type="file" ng-file-select="onFileSelect($files)" multiple>
</form>
</div>controller.js
.controller('picUploadCtr', function($scope, $http,$location, userSettingsService) {
$scope.onFileSelect = function($files) {
//$files: an array of files selected, each file has name, size, and type.
for (var i = 0; i < $files.length; i++) {
var $file = $files[i];
$http.uploadFile({
url: 'server/upload/url', //upload.php script, node.js route, or servlet uplaod url)
data: {myObj: $scope.myModelObj},
file: $file
}).then(function(data, status, headers, config) {
// file is uploaded successfully
console.log(data);
});
}
}回答 2
Stack Overflow用户
回答已采纳
发布于 2013-10-01 14:35:52
这个东西的OdeToCode posted great service。因此，通过这个简单的指令，您可以轻松地预览甚至查看进度条：
.directive("ngFileSelect",function(){
return {
link: function($scope,el){
el.bind("change", function(e){
$scope.file = (e.srcElement || e.target).files[0];
$scope.getFile();
});
}
}它可以在所有现代浏览器中工作！
Stack Overflow用户
发布于 2017-01-15 18:58:53
// start Picture Preview
$scope.imageUpload = function (event) {
var files = event.target.files;
for (var i = 0; i < files.length; i++) {
var file = files[i];
var reader = new FileReader();
reader.onload = $scope.imageIsLoaded;
reader.readAsDataURL(file);
}
}
$scope.imageIsLoaded = function (e) {
$scope.$apply(function () {
$scope.img = e.target.result;
});
}
<input type='file' ng-model-instant onchange="angular.element(this).scope().imageUpload(event)" />
<img class="thumb" ng-src="{{img}}" />页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/18754943
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