我想做一个可操作的通知。只有当我的应用程序关闭时才会出现。当我按下动作按钮时，什么也没发生
My class of notification
class Notfication : NSObject, UNUserNotificationCenterDelegate {
func request(answer : rope, RopesBas : RopesBase){
let taskCategory = UNNotificationCategory(identifier: "task", actions: [UNNotificationAction(identifier: "done", title: "Done")], intentIdentifiers: [])
UNUserNotificationCenter.current().setNotificationCategories([taskCategory])
print("0 stage")
let content = UNMutableNotificationContent()
content.title = answer.name
content.sound =
UNNotificationSound.default
content.categoryIdentifier = "task"
content.userInfo=["name" : answer.name]
print("1 stage")
// show this notification five seconds from now
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5, repeats: false)
print("2 stage")
//UNUserNotificationCenter.current().delegate = self
// choose a random identifier
let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)
print("3 stage")
// add our notification request
UNUserNotificationCenter.current().add(request){ (error : Error?) in
if let theError = error {
print(theError.localizedDescription)
}
}
print("4 stage")
print(UNUserNotificationCenter.current().delegate)
print("ok")
}
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
print("5 stage")
let userInfo = response.notification.request.content.userInfo
let id = "dad"
print("6 stage")
print(response.actionIdentifier)
switch response.actionIdentifier {
case "done":
base.ropes.removeAll(where: {$0.name == id})
break
case UNNotificationDefaultActionIdentifier,
UNNotificationDismissActionIdentifier:
break
default :
break
}
print(base.ropes.count)
completionHandler()
}
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
print("q")
completionHandler([.badge,.banner,.sound,.list])
}
}
我在表视图
声明这个类struct Adding: View {
private let publisher = Notfication()
当我在工作表视图中按下按钮时使用它
Button(action: {
RopesDB.ropes.append(rope(name: answer.answer))
publisher.request(answer: RopesDB.ropes.last!, RopesBas: RopesDB)
dismiss()
}, label: {
HStack{
Spacer()
Text(answer.answer)
Spacer()
}
我试着把委托放进
class AppDelegate: NSObject, UIApplicationDelegate{
internal func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
let center = UNUserNotificationCenter.current()
let options : UNAuthorizationOptions = [.alert, .badge, .sound]
center.requestAuthorization(options: options) { granted, error in
if granted{
UNUserNotificationCenter.current().delegate = Notfication()
}
if let error = error {
print(error.localizedDescription)
}
}
return true
}
//
}进入到它注释的类中我错了吗?IDE Swiftplaygrounds(iPad 9, iOS 15.5)
苹果公司在其文档中表示，只有在应用程序处于后台时才会显示通知。当应用程序已经在前台时，通知将直接传递到你的应用程序:https://developer.apple.com/documentation/usernotifications/handling_notifications_and_notification-related_actions
你需要在委托的userNotificationCenter(_:willPresent:withCompletionHandler:)方法中接收通知，在那里你的应用程序可以决定如何处理它。例如，将用户扔到某个视图，显示一个模态等。
我发现这个东西不能在Playgrounds上工作，我想