小编rao*_*did的帖子

当出于调试目的实现锁屏实时活动小部件时，我有一个运行startLiveActivity()功能的按钮，应用程序正常运行小部件看起来完全正常工作。

但是，每当应用程序被杀死或在后台时收到远程推送通知时，我都需要显示此活动小部件，但它仅在应用程序位于前台时才出现，这对这里的情况没有真正的帮助。

class LiveActivityHelper: ObservableObject {
    
    static var shared = LiveActivityHelper()
    
    @Published var activity: Activity<Attributes>? = nil

    func startLiveActivity() {
        
        let state = Attributes.ContentState()
        
        activity = try? Activity<Attributes>.request(attributes: Attributes(), contentState: state, pushType: nil)

    }

我尝试startLiveActivity()从 appDelegate 的 didReceiveRemoteNotification 运行该函数：

func userNotificationCenter(_ center: UNUserNotificationCenter,
                                didReceive response: UNNotificationResponse) async {
        
        LiveActivityHelper.shared.startLiveActivity()
}

从通知扩展中我有：

class NotificationService: UNNotificationServiceExtension, UNUserNotificationCenterDelegate {

    var contentHandler: ((UNNotificationContent) -> Void)?
    var bestAttemptContent: UNMutableNotificationContent?

    override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) { …