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Timer.scheduledTimer on MainActor
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| import Foundation | |
| extension Timer { | |
| @MainActor @discardableResult static func scheduledTimerOnMainRunLoop(withTimeInterval: TimeInterval, repeats: Bool, block: @escaping @MainActor (Timer) -> Void) -> Timer { | |
| // The doc says: Creates and returns a new NSTimer object initialized with the specified block object and schedules it on the current run loop | |
| // But the block is not annotated with @MainActor and we need MainActor.assumeIsolated | |
| // Since Timer is non-Sendable, capture by nonisolated(unsafe) to pass from nonisolated context to MainActor. | |
| Timer.scheduledTimer(withTimeInterval: withTimeInterval, repeats: repeats) { timer in | |
| nonisolated(unsafe) let timer: Timer = timer | |
| MainActor.assumeIsolated { | |
| block(timer) | |
| } | |
| } | |
| } | |
| } |
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