Post not yet marked as solved
Post marked as unsolved with 0 replies, 51 views
Hi,
if values are PUBLISHED rapidly, then ALL are present in the Combine sink, but SOME of them are absent from the async loop. Why the difference?
For example, in the code below, tapping repeatedly 4 times gives the output:
INPUT 24, INPUT 9, INPUT 31, INPUT 45, SINK 24, SINK 9, LOOP 24, SINK 31, SINK 45, LOOP 31.
import SwiftUI
import Combine
import PlaygroundSupport
var subject = PassthroughSubject<Int, Never>()
struct ContentView: View {
@State var bag = [AnyCancellable]()
@State var a = [String]()
var body: some View {
Text("TAP A FEW TIMES RAPIDLY")
.frame(width: 160, height: 160)
.onTapGesture {
Task {
let anyInt = Int.random(in: 1..<100)
print("INPUT \(anyInt)")
try await Task.sleep(nanoseconds: 3_000_000_000)
subject.send(anyInt)
}
}
.task {
for await anyInt in subject.values {
print(" LOOP \(anyInt)")
}
}
.onAppear{
subject.sink{ anyInt in
print(" SINK \(anyInt)")
}.store(in: &bag)
}
}
}
PlaygroundPage.current.setLiveView(ContentView())
Thank you.
Posted
by
fallthrough.
Last updated
fallthrough.
.