---
title: "callAsFunction(_:prefersInApp:)"
framework: swiftui
role: symbol
role_heading: Instance Method
path: "swiftui/openurlaction/callasfunction(_:prefersinapp:)"
---

# callAsFunction(_:prefersInApp:)

## Declaration

```swift
@MainActor @preconcurrency func callAsFunction(_ url: URL, prefersInApp: Bool)
```