I want my live activity to show "in 3 min" text, and for it to be updated automatically every minute. I saw I could do: Text(date, style: .relative) but sadly it include seconds too: 3 min, 2 sec. Is there a way for me to remove the seconds?
There are many examples for this use case in the "Design dynamic Live Activities" session from WWDC23, especially at 11:35. How are they implementing that?
Hey it took me days to figure it out, but the way is to use a custom date formatter. See example code below
import SwiftUI
struct ContentView: View {
var body: some View {
VStack {
Text(date, formatter: formatter)
}
.padding()
}
var date: Date {
Date().addingTimeInterval(20*60)
}
var formatter: RelativeMinutesDateFormatter {
RelativeMinutesDateFormatter()
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
class RelativeMinutesDateFormatter : Formatter {
open override func string(for obj: Any?) -> String? {
guard let date = obj as? Date else {
return nil
}
let minutes = Int(date.timeIntervalSince(.now) / 60)
return "\(minutes)m"
}
}
When I use a custom formatter, the date no longer live-updates—is this the same for you?