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# CLKComplicationTimelineAnimationBehavior

Constants indicating the animation behavior during Time Travel.

```
enum CLKComplicationTimelineAnimationBehavior
```

## Topics

### Constants

[`CLKComplicationTimelineAnimationBehavior.never`](/documentation/ClockKit/CLKComplicationTimelineAnimationBehavior/never)

No animations. This is the default behavior.

[`CLKComplicationTimelineAnimationBehavior.grouped`](/documentation/ClockKit/CLKComplicationTimelineAnimationBehavior/grouped)

Animations between groups. During Time Travel, ClockKit creates animations when transitioning between entries with different group identifiers. For entries with identical group identifiers, the new entry is displayed without animations.

[`CLKComplicationTimelineAnimationBehavior.always`](/documentation/ClockKit/CLKComplicationTimelineAnimationBehavior/always)

Always animate transitions. During Time Travel, ClockKit creates animations between all entries, regardless of the values of their group identifiers.


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