Exploring the world of AngularJs animation transitions using keyframes

Hi there, I'm diving into Angular and still getting the hang of CSS3 (more of a backend dev myself!)

I've been exploring how custom transitions are handled in Angular using CSS3 keyframes.

Here is what I have so far:

In my markup:

<div id="welcome-container" ng-hide="test">
...
</div>

In my controller:

$scope.test = false;
// ... performing some tasks that take longer than 3-4 seconds
$scope.test = true;

And in my CSS:

#welcome-container.ng-hide {
    animation: 1s mycustomkeyframe;
    -webkit-animation: 1s mycustomkeyframe;
}

@keyframes mycustomkeyframe {
    from { opacity: 1; }
    to { opacity: 0; }
}

@-webkit-keyframes mycustomkeyframe {
    from { opacity: 1; }
    to { opacity: 0; }
}

I managed to get this example working with ng-hide-add and ng-hide-active classes, but I'm struggling with keyframes. The div hides, but no animation occurs!! I want to implement keyframes for smooth easing transitions similar to jQuery (but without actually using jQuery :P)

If anyone could offer assistance, I would greatly appreciate it!

Answer №1

I have never worked with Angular before, but I noticed that from a CSS perspective, there is no ng-hide class on your div.

<div id="welcome-container" class="ng-hide" ng-hide="test">
Here is a lot of text blah
</div>

Check out the JsFiddle here.

Answer №2

When it comes to web development, AngularJS and CSS3 serve different purposes.

Angular allows for the addition of a CSS class to a container element.

Subsequently, by utilizing this new CSS class, animations can be triggered directly from the stylesheet.

$scope.my_css_class = 'example_class'

<div ng-class="{{ my_css_class }}">

In Angular, classes are applied using the ng-class directive.

Answer №3

Animating the ng-hide directive with keyframes may not be achievable in the current release.

To add animation, consider applying a separate class for animations. Once the animation is completed, trigger the hide action or explore alternative directives such as ng-leave.

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