---
title: localizedSubtitle
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uimutableapplicationshortcutitem/localizedsubtitle
---

# localizedSubtitle

The optional, user-visible subtitle for the Home Screen dynamic mutable quick action.

## Declaration

```swift
var localizedSubtitle: String? { get set }
```

## Discussion

Discussion If you specify a subtitle for a mutable quick action, the system then displays the title on a single line (potentially with an ellipsis character), no matter how long the title is. To internationalize the subtitle for a Home Screen mutable, dynamic quick action, employ the NSLocalizedString Foundation function, described in Foundation Functions, along with a Localized.strings file in your Xcode project.

## See Also

### Inspecting a Home Screen dynamic mutable quick action

- [localizedTitle](uikit/uimutableapplicationshortcutitem/localizedtitle.md)
- [type](uikit/uimutableapplicationshortcutitem/type.md)
- [icon](uikit/uimutableapplicationshortcutitem/icon.md)
- [userInfo](uikit/uimutableapplicationshortcutitem/userinfo.md)