41 lines
2.0 KiB
Markdown
41 lines
2.0 KiB
Markdown
# Reusable animations
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This topic provides some examples of how to create reusable animations.
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## Prerequisites
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Before continuing with this topic, you should be familiar with the following:
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* [Introduction to Angular animations](guide/animations)
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* [Transition and triggers](guide/transition-and-triggers)
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## Creating reusable animations
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To create a reusable animation, use the [`animation()`](api/animations/animation) method to define an animation in a separate `.ts` file and declare this animation definition as a `const` export variable. You can then import and reuse this animation in any of your application components using the [`useAnimation()`](api/animations/useAnimation) API.
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<code-example path="animations/src/app/animations.1.ts" header="src/app/animations.ts" region="animation-const" language="typescript"></code-example>
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In the above code snippet, `transAnimation` is made reusable by declaring it as an export variable.
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<div class="alert is-helpful">
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**Note:** The `height`, `opacity`, `backgroundColor`, and `time` inputs are replaced during runtime.
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</div>
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You can also export a part of an animation. For example, the following snippet exports the animation `trigger`.
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<code-example path="animations/src/app/animations.1.ts" header="src/app/animations.1.ts" region="trigger-const" language="typescript"></code-example>
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From this point, you can import resuable animation variables in your component class. For example, the following code snippet imports the `transAnimation` variable for use in the `useAnimation()` method.
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<code-example path="animations/src/app/open-close.component.3.ts" header="src/app/open-close.component.ts" region="reusable" language="typescript"></code-example>
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## More on Angular animations
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You may also be interested in the following:
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* [Introduction to Angular animations](guide/animations)
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* [Transition and triggers](guide/transition-and-triggers)
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* [Complex animation Sequences](guide/complex-animation-sequences)
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* [Route transition animations](guide/route-animations)
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