51 lines
1.4 KiB
Swift
51 lines
1.4 KiB
Swift
//
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// AppLifecycleObserver.swift
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// ylgamehall
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//
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// 监听 UIApplication 前/后台切换通知，提供 onBackground / onForeground 钩子。
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//
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// 契约：docs/H5-Native-Contract.md §3.2 ［4］appservice 反向 callback
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// "2" = 进入后台 / "1" = 回到前台（值错位沿用历史 msext WKWebView 路径，
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// 参 daoqi/msext NewRootVC.m:1773/1782、gameController.m:1323/1332）
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// Phase 2.11
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//
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import UIKit
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@MainActor
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public final class AppLifecycleObserver {
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public static let shared = AppLifecycleObserver()
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public var onBackground: (@MainActor () -> Void)?
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public var onForeground: (@MainActor () -> Void)?
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private var started = false
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public init() {}
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public func start() {
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guard !started else { return }
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started = true
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let nc = NotificationCenter.default
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nc.addObserver(
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forName: UIApplication.didEnterBackgroundNotification,
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object: nil,
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queue: .main
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) { [weak self] _ in
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MainActor.assumeIsolated {
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self?.onBackground?()
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}
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}
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nc.addObserver(
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forName: UIApplication.willEnterForegroundNotification,
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object: nil,
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queue: .main
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) { [weak self] _ in
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MainActor.assumeIsolated {
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self?.onForeground?()
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}
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}
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}
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}
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