iOS 建立遠距推播 App (一) Swift 程式篇
Step 01 : 建立 Storyboard 專案
Step 02 : 設定各項參數
(1) 在 專案(Project) TARGETS 頁 Signing & Capabilities 內新增
Background Modes 及 Push Notification 二個 Capabilities
Background Modes 項目勾選 Remote notifications

Step 03 : 自訂 AppDelegate 類別
在 專案名+app.swift 檔的 @main 前加入
class AppDelegate: UIResponder, UIApplicationDelegate {
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
application.registerForRemoteNotifications() //啟用 Remote Notification
return true
}
func application(
_ application: UIApplication,
didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data
){
let token = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
print(token)
}
func application(
_ application: UIApplication,
didFailToRegisterForRemoteNotificationsWithError error: Error
){
//無法推播的錯誤訊息
print(error)
}
}
在 專案名+app.swift 檔的 struct 專案名+App: App{ 內加入
@UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate

Step04 : 在 ContentView.swift import UserNotifications 並在啟始 view 加入下列代碼
init(){
//MARK: 取得推播援權
Task{
let opt:UNAuthorizationOptions = [.alert, .badge, .sound]
if try! await UNUserNotificationCenter.current().requestAuthorization(options: opt){
} else {
}
}
}
