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# motionEffects

An array of motion effect objects to apply as a group to the view.

```
var motionEffects: [UIMotionEffect]? { get set }
```

## Discussion

The array contains one or more [`UIMotionEffect`](/documentation/UIKit/UIMotionEffect) objects. When the viewer offset changes, each object in the group is asked for its key paths and updated values. Those values are then applied simultaneously.

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