NEW: Start my new Ultimate Portfolio App course with a free Hacking with Swift+ trial! >>

How to add actions to alert buttons

Paul Hudson    @twostraws   

Updated for Xcode 12.5

Basic SwiftUI alerts look like this:

Alert(title: Text("Important message"), message: Text("Wear sunscreen"), dismissButton: .default(Text("Got it!")))

However, you will often want to attach actions to buttons to perform specific actions when they are tapped. To do that, attach a closure to your button that will be called when it’s tapped, like this:

struct ContentView: View {
    @State private var showingAlert = false

    var body: some View {
        Button("Show Alert") {
            showingAlert = true
        }
        .alert(isPresented:$showingAlert) {
            Alert(
                title: Text("Are you sure you want to delete this?"),
                message: Text("There is no undo"),
                primaryButton: .destructive(Text("Delete")) {
                    print("Deleting...")
                },
                secondaryButton: .cancel()
            )
        }
    }
}

There is no way to add more than two buttons to an alert – if you’re looking to do that you should use an action sheet instead.

Hacking with Swift is sponsored by Instabug

SPONSORED Catch bugs as soon as they happen and know exactly why a crash occurred. Instabug's SDK grabs all the logs they need to fix bugs, crashes and performance issues in minutes instead of days. Get screenshots, device details, network logs, repro steps, and tons of other critical insights needed to resolve issues and prioritize product backlogs straight from your dashboard. It only takes a minute to integrate!

Get started now

Sponsor Hacking with Swift and reach the world's largest Swift community!

Similar solutions…

BUY OUR BOOKS
Buy Pro Swift Buy Swift Design Patterns Buy Testing Swift Buy Hacking with iOS Buy Swift Coding Challenges Buy Swift on Sundays Volume One Buy Server-Side Swift (Vapor Edition) Buy Advanced iOS Volume One Buy Advanced iOS Volume Two Buy Advanced iOS Volume Three Buy Hacking with watchOS Buy Hacking with tvOS Buy Hacking with macOS Buy Dive Into SpriteKit Buy Swift in Sixty Seconds Buy Objective-C for Swift Developers Buy Server-Side Swift (Kitura Edition) Buy Beyond Code

Was this page useful? Let us know!

Average rating: 4.3/5

 
Unknown user

You are not logged in

Log in or create account
 

Link copied to your pasteboard.