iOS_Back_15

PN, 本地推播

1. code.

          class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
   
   
   
            func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
                // Override point for customization after application launch.
   
                // 推播中心的迸發執行緒
                // ask user the autherization
                let nc = UNUserNotificationCenter.current()
                nc.delegate = self
   
                nc.requestAuthorization(options: [.alert, .sound, .badge]){
   
                    (granted, error) in
                    if granted == false {
                        print(" 權限不足，Auth is limited.")
                    }
   
                }
   
                notifyUser()
                return true
            }
   
            // design the notify body
   
            func notifyUser(){
   
                let txt = UNMutableNotificationContent()
                txt.title = "這是來自 Kate 的推播放喔！"
                txt.body = "普普貓問：今天有定時定樣餵食我嗎？"
                txt.badge = 3
                txt.sound = UNNotificationSound.default
   
                let tg = UNTimeIntervalNotificationTrigger(timeInterval: 61, repeats: true)
                let req = UNNotificationRequest(identifier: "mytargetid", content: txt, trigger: tg)
   
                // 推播中心的迸發執行緒
                let nc = UNUserNotificationCenter.current()
                nc.delegate = self
                nc.add(req)
   
            }
   
            // 上方為銀幕鎖上或是 Home 時的推播狀態設定。
            // 前景 app 出現本地推播通知要額外實作 userNotificationCenter。
   

2. ask for auth.

3. time interval and repeat.

   版主私心：普普貓每 61 秒提醒一次餵食通知。