ionic 图片加载失败，显示默认图片代替

1.首先编写自定义指令

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angular.module('starter.directives', []) //当图片找不到事显示替代图片    .directive("errSrc", function() {       return {          link: function(scope, element, attrs) {             element.bind("error", function() {                if (attrs.src != attrs.errSrc) {                   attrs.$set("src", attrs.errSrc);                }             });          }       }    })

2.引用

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1	<img class="icon" ng-src="{{userData._avatar}}" ng-click="loadImage()" id="avatar" err-src="img/default_avatar.png">