---
title: "setBackgroundVerticalPositionAdjustment(_:for:)"
framework: uikit
role: symbol
role_heading: Instance Method
path: "uikit/uibarbuttonitem/setbackgroundverticalpositionadjustment(_:for:)"
---

# setBackgroundVerticalPositionAdjustment(_:for:)

Sets the background vertical position offset for specified bar metrics.

## Declaration

```swift
func setBackgroundVerticalPositionAdjustment(_ adjustment: CGFloat, for barMetrics: UIBarMetrics)
```

## Parameters

- `adjustment`: The background vertical position offset for barMetrics.
- `barMetrics`: Bar metrics.

## Discussion

Discussion This offset is used to adjust the vertical centering of bordered bar buttons within the bar.

## See Also

### Customizing the background

- [backgroundVerticalPositionAdjustment(for:)](uikit/uibarbuttonitem/backgroundverticalpositionadjustment(for:).md)
- [backgroundImage(for:barMetrics:)](uikit/uibarbuttonitem/backgroundimage(for:barmetrics:).md)
- [setBackgroundImage(_:for:barMetrics:)](uikit/uibarbuttonitem/setbackgroundimage(_:for:barmetrics:).md)
- [backgroundImage(for:style:barMetrics:)](uikit/uibarbuttonitem/backgroundimage(for:style:barmetrics:).md)
- [setBackgroundImage(_:for:style:barMetrics:)](uikit/uibarbuttonitem/setbackgroundimage(_:for:style:barmetrics:).md)