监听生命周期- swiftUI

davidson1471

于 2025-01-10 10:54:33 发布

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分类专栏： swiftUI 文章标签： swiftui 后台 iphone iOS

本文链接：https://blog.youkuaiyun.com/davidson1471/article/details/145052464

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全局监听

// 全局监听
Text("Hello, World!")
    .onReceive(NotificationCenter.default.publisher(for: UIApplication.willResignActiveNotification)) { _ in
        print("即将进入后台")
    }.onReceive(NotificationCenter.default.publisher(for: UIApplication.willEnterForegroundNotification)) { _ in
        print("即将进入前台")
    }.onReceive(NotificationCenter.default.publisher(for: UIApplication.userDidTakeScreenshotNotification)) { _ in
        print("用户截屏了")
    }.onReceive(NotificationCenter.default.publisher(for: UIApplication.didEnterBackgroundNotification)) { _ in
        print("已经进入后台")
    }.onReceive(NotificationCenter.default.publisher(for: UIApplication.didBecomeActiveNotification)) { _ in
        print("已经进入前台")
    }.onReceive(NotificationCenter.default.publisher(for: UIApplication.willTerminateNotification)) { _ in
        print("程序将要销毁")
    }

监听单个页面

// 单独页面监听
@Environment(\.scenePhase) private var scenePhase
.onChange(of: scenePhase) { newScenePhase in
    if newScenePhase == .background {
        // 应用进入后台的操作
        print("App entered the background")
    }
    if newScenePhase == .active {
        // 应用进入前台的操作
        print("App entered the foreground")
    }
}