@angular/animations

AnimationBuilder

Class

deprecatedsince v20.2

An injectable service that produces an animation sequence programmatically within an Angular component or directive. Provided by the BrowserAnimationsModule or NoopAnimationsModule.

Deprecation warning

Use animate.enter or animate.leave instead. Intent to remove in v23

API

    
      abstract class AnimationBuilder {}

build

AnimationFactory

Builds a factory for producing a defined animation.

@paramanimationAnimationMetadata | AnimationMetadata[]

A reusable animation definition.

@returnsAnimationFactory

Usage Notes

To use this service, add it to your component or directive as a dependency. The service is instantiated along with your component.

Apps do not typically need to create their own animation players, but if you do need to, follow these steps:

Use the AnimationBuilder.build() method to create a programmatic animation. The method returns an AnimationFactory instance.
Use the factory object to create an AnimationPlayer and attach it to a DOM element.
Use the player object to control the animation programmatically.

For example:

// import the service from BrowserAnimationsModuleimport {AnimationBuilder} from '@angular/animations';// require the service as a dependencyclass MyCmp {  constructor(private _builder: AnimationBuilder) {}  makeAnimation(element: any) {    // first define a reusable animation    const myAnimation = this._builder.build([      style({ width: 0 }),      animate(1000, style({ width: '100px' }))    ]);    // use the returned factory object to create a player    const player = myAnimation.create(element);    player.play();  }}