页面加载时的 AngularJS 1.2 ng-repeat 动画 [英] AngularJS 1.2 ng-repeat animation on page load

问题描述

惊人的动画很棒！但是如果没有用户交互，我就无法让它工作.

有一个完全正常的 ng-repeat 列表:

<div class="category" ng-repeat="category in category">{{类别}}

在控制器中定义:

var controller = function($scope) {$scope.categories = ['12345', '6789', '9876', '54321'];};

还有一些动画的 CSS 规则:

.category.ng-enter {-webkit-transition:2s 线性全部；过渡:2s线性全部；不透明度:0;}.category.ng-输入交错{-webkit-transition-delay: 1s;转换延迟:1s；}.category.ng-enter.ng-enter-active {/* 标准过渡样式 */不透明度:1；}

但是在页面加载时它没有动画显示.我插入了一个按钮，用于用随机数替换类别数组，它淡入淡出就好了.

当用户第一次访问页面时，我需要做什么才能使动画工作?

演示在这里:http://plnkr.co/edit/3zXENPbYA3cxJQ3Pyb34?p=preview

我找到了一些用 $timeout() 破解的答案，但我只在第一项上得到了动画.而且感觉不舒服.

解决方案

在引导时禁用动画是设计使然，请参阅:#5130.

lioli 的评论中提供了一种解决方法(一个肮脏的黑客)，可以在页面加载时启用动画.

将此行放在控制器的开头(不要忘记注入 $rootElement).

$rootElement.data("$$ngAnimateState").running = false;

Plunker 示例: http://plnkr.co/edit/9ZZ3JBOCaRJ41ssczX6l?p=预览

对于您仅在第一项上获得动画的问题.据报道，这是一个仅在 angular-animate 的缩小版本中才会发生的错误，即 angular-animate.min.js.

在上面的 plunker 中，我已更改为未缩小的 angular-animate.js 并且它似乎工作正常.

有关问题的更多详细信息，请参阅:#8297 和 #7547

Staggering Animations are great! But I don't get it to work without user interaction.

There is a total normal ng-repeat list:

<div ng-controller="controller">    
    <div class="category" ng-repeat="category in categories">
      {{category}}
    </div>
</div>

Defined in a controller:

var controller = function($scope) {
  $scope.categories = ['12345', '6789', '9876', '54321'];
};

And a few CSS Rules for animation:

.category.ng-enter {
  -webkit-transition: 2s linear all;
  transition: 2s linear all;
  opacity:0;
}
.category.ng-enter-stagger {
  -webkit-transition-delay: 1s;
  transition-delay: 1s;
}
.category.ng-enter.ng-enter-active {
  /* standard transition styles */
  opacity:1;
}

But on page load its displayed without animation. I inserted a button for replacing the categories array with random numbers and it fades in just fine.

What do I have to do to get the animation to work, when the user visits the page the first time?

Demo is here: http://plnkr.co/edit/3zXENPbYA3cxJQ3Pyb34?p=preview

I found some answers that hacking around with $timeout() but I get an animation only on the first item. And it don't feel well.

解决方案

It's by design that the animation is disabled while bootstraping, see: #5130.

There is a workaround (a dirty hack) provided in a comment by lioli to enable animation on page load.

Put this line at the beginning of your controller (do not forget to inject the $rootElement).

$rootElement.data("$$ngAnimateState").running = false;

Example Plunker: http://plnkr.co/edit/9ZZ3JBOCaRJ41ssczX6l?p=preview

For the issue that you get an animation only on the first item. It's been reported that this is a bug that happens only with a minified version of angular-animate i.e. angular-animate.min.js.

In the plunker above, I've changed to an unminified angular-animate.js and it seems to work fine.

For more detail of the issue, see: #8297 and #7547

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