taler-ios

iOS apps for GNU Taler (wallet)
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TimeView.swift (2128B)

      1 /*
      2  * This file is part of GNU Taler, ©2022-26 Taler Systems S.A.
      3  * See LICENSE.md
      4  */
      5 /**
      6  * @author Marc Stibane
      7  */
      8 import SwiftUI
      9 
     10 struct TimeView: View {
     11     let title: String
     12     let seconds: Int
     13     let trailer: String
     14     @Binding var isFinished: Bool?
     15 
     16     init(_ title: String, seconds: Int,_ trailer: String? = nil, isFinished: Binding<Bool?> = .constant(nil)) {
     17         self.title = title
     18         self.seconds = seconds
     19         self.trailer = trailer ?? String(localized: "seconds")
     20         self._isFinished = isFinished
     21     }
     22 
     23     func remainingTime(_ elapsed: Int) -> Int {
     24         let remaining = seconds - elapsed
     25         if remaining <= 0 {
     26             if isFinished != nil {
     27                 DispatchQueue.main.async {
     28                     withAnimation {
     29                         isFinished = true
     30                     }
     31 //                    print("❗️❗️❗️ retrying…")
     32                     DispatchQueue.main.asyncAfter(deadline: .now() + 1.2) {
     33                         withAnimation {
     34                             isFinished = nil
     35                         }
     36 //                        print("❗️❗️❗️ waiting for response…")
     37                     }
     38                 }
     39             }
     40         }
     41         return remaining
     42     }
     43 
     44     var body: some View {
     45         let startDate = Date()
     46         HStack {
     47             Text(title)
     48             TimelineView(.animation) { context in
     49                 let elapsed = Int(context.date.timeIntervalSince(startDate))
     50                 let remaining = remainingTime(elapsed)
     51                 let text = Text(verbatim: "\(remaining)")
     52                 if #available(iOS 17.0, *) {
     53                     text
     54                         .contentTransition(.numericText(countsDown: true))
     55                         .animation(.default, value: elapsed)
     56                 } else if #available(iOS 16.4, *) {
     57                     text
     58                         .animation(.default, value: elapsed)
     59                 } else {
     60                     text
     61                 }
     62             }.monospacedDigit()
     63             Text(trailer)
     64         }.accessibilityElement(children: .combine)
     65     }
     66 }