在swiftUI上也在后台运行计时器

Question

我希望计时器在后台也继续运行

这里是计时器的当前代码

struct ContentView: View {
@State var timeRemaining = 10
let timer = Timer.publish(every: 1, on: .main, in: .common).autoconnect()

var body: some View {
    Text("\(timeRemaining)")
        .onReceive(timer) { _ in
            if self.timeRemaining > 0 {
                self.timeRemaining -= 1
            }
        }
} }

如何使它在后台也能继续运行？

Answer 1

关于后台任务有几种解释方式……例如：https://www.raywenderlich.com/5817-background-modes-tutorial-getting-started