---
title: "lookAroundViewControllerWillPresentFullScreen(_:)"
framework: mapkit
role: symbol
role_heading: Instance Method
path: "mapkit/mklookaroundviewcontrollerdelegate/lookaroundviewcontrollerwillpresentfullscreen(_:)"
---

# lookAroundViewControllerWillPresentFullScreen(_:)

Tells the delegate when the view controller is about to enter full-screen mode.

## Declaration

```swift
optional func lookAroundViewControllerWillPresentFullScreen(_ viewController: MKLookAroundViewController)
```

## Parameters

- `viewController`: The doc://com.apple.mapkit/documentation/MapKit/MKLookAroundViewController.

## See Also

### Entering and exiting full-screen modes

- [lookAroundViewControllerDidPresentFullScreen(_:)](mapkit/mklookaroundviewcontrollerdelegate/lookaroundviewcontrollerdidpresentfullscreen(_:).md)
- [lookAroundViewControllerWillDismissFullScreen(_:)](mapkit/mklookaroundviewcontrollerdelegate/lookaroundviewcontrollerwilldismissfullscreen(_:).md)
- [lookAroundViewControllerDidDismissFullScreen(_:)](mapkit/mklookaroundviewcontrollerdelegate/lookaroundviewcontrollerdiddismissfullscreen(_:).md)