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21a6238a16
Every mpv time-pos tick updated PlayerState.currentTime and bufferedTime, re-rendering the invisible player controls, progress bar and chapter segments several times per second while the app played in the background, which drained the battery during long audio-only sessions. - PlayerState keeps currentTime/bufferedTime current for readers but stops notifying observers while publishesTimeUpdates is off; PlayerService turns it off on entering the background and back on (with one catch-up notification) before returning to the foreground - MarqueeText pauses its animation timeline outside the active scene - Replace the 100 ms polling loops in RemoteControlCoordinator and ToastManager (iOS/tvOS) with observation-driven waits Main-thread samples during 30 s of background audio-only playback on an iPhone 12 mini went from 1289 to 248.
22 lines
572 B
Swift
22 lines
572 B
Swift
//
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// ObservationChange.swift
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// Yattee
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//
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import Foundation
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import Observation
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/// Suspends until a property read in `track` changes, or the task is cancelled.
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///
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/// Use in an observer loop instead of polling with `Task.sleep`, which keeps
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/// waking the main thread for as long as the app runs.
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@MainActor
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func observationChange(_ track: () -> Void) async {
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let (changes, continuation) = AsyncStream<Void>.makeStream()
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withObservationTracking(track) {
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continuation.yield()
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continuation.finish()
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}
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for await _ in changes { break }
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}
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