渲染后如何执行指令代码? [英] How do you execute directive code after rendering?

问题描述

我正在尝试构建一个指令，该指令在嵌套的 ng-repeat 完成渲染后运行.这是我尝试过的(fiddle):

HTML:

<ul my-directive><li ng-repeat="动物中的动物">{{animal}}</li>

还有 JavaScript:

angular.module("MyApp", []).directive("myDirective", function () {返回函数(范围，元素，属性){警报(元素.查找(li").长度)；//0};});函数 MyCtrl($scope) {$scope.animals = ["狗", "猫", "大象"];}

我的自定义指令中的链接函数在所有

元素被渲染之前运行(并且 0 被警告).ng-repeat 完成渲染后如何运行代码?

解决方案

你可以在 ng-repeat 中移动指令，http://jsfiddle.net/ZTMex/3/

<ul><li ng-repeat="动物中的动物" my-directive>{{animal}}</li>

或查看与您的问题.

I'm trying to build a directive that runs after a nested ng-repeat has completed rendering. Here's what I've tried (fiddle):

The HTML:

<div ng-app="MyApp" ng-controller="MyCtrl">
    <ul my-directive>
        <li ng-repeat="animal in animals">{{animal}}</li>
    </ul>
</div>

And the JavaScript:

angular.module("MyApp", [])
    .directive("myDirective", function () {
        return function(scope, element, attrs) {
            alert(element.find("li").length); // 0
        };
    });

function MyCtrl($scope) {
    $scope.animals = ["Dog", "Cat", "Elephant"];
}

The linking function in my custom directive runs before all of the <li> elements have been rendered (and 0 is alerted). How do I run code after the ng-repeat has completed rendering?

解决方案

You could move the directive inside ng-repeat, http://jsfiddle.net/ZTMex/3/

<div ng-app="MyApp" ng-controller="MyCtrl">
    <ul>
        <li ng-repeat="animal in animals" my-directive>{{animal}}</li>
    </ul>
</div>

Or have a look at https://stackoverflow.com/a/13472605/1986890 which is related to your question.

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