如何在 Swift 中设置推送通知

Question

我正在尝试为我的应用程序设置推送通知系统。我有一个服务器和一个开发者许可证来设置推送通知服务。

我目前正在 Swift 中运行我的应用程序。我希望能够从我的服务器远程发送通知。我该怎么做？

Answer 1

斯威夫特 2：

let settings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
UIApplication.sharedApplication().registerUserNotificationSettings(settings)
UIApplication.sharedApplication().registerForRemoteNotifications()

Answer 2

虽然处理推送通知的答案很好，但我仍然相信立即分享集成的完整案例以缓解：

为APNS注册应用程序，（在AppDelegate.swift中的didFinishLaunchingWithOptions方法中包含以下代码）

---

IOS 9

var settings : UIUserNotificationSettings = UIUserNotificationSettings(forTypes:UIUserNotificationType.Alert|UIUserNotificationType.Sound, categories: nil)
UIApplication.sharedApplication().registerUserNotificationSettings(settings)
UIApplication.sharedApplication().registerForRemoteNotifications()

---

IOS 10 之后

引入 UserNotifications 框架：

导入UserNotifications框架，在AppDelegate.swift中添加UNUserNotificationCenterDelegate

---

注册申请APNS

let center = UNUserNotificationCenter.current()
center.requestAuthorization(options:[.badge, .alert, .sound]) { (granted, error) in

    // If granted comes true you can enabled features based on authorization.
    guard granted else { return }

    application.registerForRemoteNotifications()
}

这将调用以下委托方法

func application(application: UIApplication,didRegisterForRemoteNotificationsWithDeviceToken deviceToken: NSData) {
//send this device token to server
}

//Called if unable to register for APNS.
func application(application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: NSError) {

println(error)

}

收到通知后，代表将致电：

func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {

    println("Recived: \(userInfo)")
   //Parsing userinfo:
   var temp : NSDictionary = userInfo
   if let info = userInfo["aps"] as? Dictionary<String, AnyObject> 
            {
                var alertMsg = info["alert"] as! String
                var alert: UIAlertView!
                alert = UIAlertView(title: "", message: alertMsg, delegate: nil, cancelButtonTitle: "OK")
                alert.show()
            }
}

要确定我们可以使用的权限：

UNUserNotificationCenter.current().getNotificationSettings(){ (setttings) in

        switch setttings.soundSetting{
        case .enabled:
            print("enabled sound")

        case .disabled:
            print("not allowed notifications")

        case .notSupported:
            print("something went wrong here")
        }
    }

---

那么 APNS 的清单：

• 使用推送通知创建 AppId 允许
• 使用有效的证书和应用 ID 创建 SSL 证书
• 创建具有相同证书的配置文件，并确保添加设备以防沙箱（开发配置）

注意：如果在 SSL 证书之后创建配置文件会很好。

带代码：

• 为推送通知注册应用程序
• 处理 didRegisterForRemoteNotificationsWithDeviceToken 方法
• 设置目标>能力>后台模式>远程通知
• 处理 didReceiveRemoteNotification

Answer 3

要注册通过 Apple 推送服务接收推送通知，您必须调用 UIApplication 的 registerForRemoteNotifications() 方法。

如果注册成功，应用程序会调用您的应用程序委托对象的application:didRegisterForRemoteNotificationsWithDeviceToken: 方法并将设备令牌传递给它。

您应该将此令牌传递给您用来为设备生成推送通知的服务器。如果注册失败，则应用调用其应用代理的application:didFailToRegisterForRemoteNotificationsWithError: 方法。

查看Local and Push Notification Programming Guide。

Answer 4

registerForRemoteNotification() 已从 ios8 中删除。

所以你应该使用UIUserNotification

代码示例：

var type = UIUserNotificationType.Badge | UIUserNotificationType.Alert | UIUserNotificationType.Sound;
var setting = UIUserNotificationSettings(forTypes: type, categories: nil);
UIApplication.sharedApplication().registerUserNotificationSettings(setting);
UIApplication.sharedApplication().registerForRemoteNotifications();

希望这会对你有所帮助。

Answer 5

要支持 ios 8 及之前版本，请使用：

// Register for Push Notitications, if running iOS 8
if application.respondsToSelector("registerUserNotificationSettings:") {

  let types:UIUserNotificationType = (.Alert | .Badge | .Sound)
  let settings:UIUserNotificationSettings = UIUserNotificationSettings(forTypes: types, categories: nil)

  application.registerUserNotificationSettings(settings)
  application.registerForRemoteNotifications()

} else {      
  // Register for Push Notifications before iOS 8
  application.registerForRemoteNotificationTypes(.Alert | .Badge | .Sound)
}

Answer 6

斯威夫特 4

我认为这是在iOS 8 及以上设置的正确方法。

在Capabilities 选项卡中打开Push Notifications

导入UserNotifications

import UserNotifications

修改didFinishLaunchingWithOptions

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {


    if let notification = launchOptions?[.remoteNotification] as? [String: AnyObject] {

        // If your app wasn’t running and the user launches it by tapping the push notification, the push notification is passed to your app in the launchOptions

        let aps = notification["aps"] as! [String: AnyObject]
        UIApplication.shared.applicationIconBadgeNumber = 0
    }

    registerForPushNotifications()

    return true
}

每次启动应用时都致电registerUserNotificationSettings(_:) 非常重要。这是因为用户可以随时进入“设置”应用并更改通知权限。 application(_:didRegisterUserNotificationSettings:) 将始终为您提供用户当前对您的应用允许的权限。

复制粘贴这个AppDelegate扩展

// Push Notificaion
extension AppDelegate {
func registerForPushNotifications() {
    if #available(iOS 10.0, *) {
        UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) {
            [weak self] (granted, error) in
            print("Permission granted: \(granted)")

            guard granted else {
                print("Please enable \"Notifications\" from App Settings.")
                self?.showPermissionAlert()
                return
            }

            self?.getNotificationSettings()
        }
    } else {
        let settings = UIUserNotificationSettings(types: [.alert, .sound, .badge], categories: nil)
        UIApplication.shared.registerUserNotificationSettings(settings)
        UIApplication.shared.registerForRemoteNotifications()
    }
}

@available(iOS 10.0, *)
func getNotificationSettings() {

    UNUserNotificationCenter.current().getNotificationSettings { (settings) in
        print("Notification settings: \(settings)")
        guard settings.authorizationStatus == .authorized else { return }
        DispatchQueue.main.async {
            UIApplication.shared.registerForRemoteNotifications()
        }
    }
}

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {

    let tokenParts = deviceToken.map { data -> String in
        return String(format: "%02.2hhx", data)
    }

    let token = tokenParts.joined()
    print("Device Token: \(token)")
    //UserDefaults.standard.set(token, forKey: DEVICE_TOKEN)
}

func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
    print("Failed to register: \(error)")
}

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {

    // If your app was running and in the foreground
    // Or
    // If your app was running or suspended in the background and the user brings it to the foreground by tapping the push notification

    print("didReceiveRemoteNotification /(userInfo)")

    guard let dict = userInfo["aps"]  as? [String: Any], let msg = dict ["alert"] as? String else {
        print("Notification Parsing Error")
        return
    }
}

func showPermissionAlert() {
    let alert = UIAlertController(title: "WARNING", message: "Please enable access to Notifications in the Settings app.", preferredStyle: .alert)

    let settingsAction = UIAlertAction(title: "Settings", style: .default) {[weak self] (alertAction) in
        self?.gotoAppSettings()
    }

    let cancelAction = UIAlertAction(title: "Cancel", style: .default, handler: nil)

    alert.addAction(settingsAction)
    alert.addAction(cancelAction)

    DispatchQueue.main.async {
        self.window?.rootViewController?.present(alert, animated: true, completion: nil)
    }
}

private func gotoAppSettings() {

    guard let settingsUrl = URL(string: UIApplicationOpenSettingsURLString) else {
        return
    }

    if UIApplication.shared.canOpenURL(settingsUrl) {
        UIApplication.shared.openURL(settingsUrl)
    }
}
}

签出：Push Notifications Tutorial: Getting Started

Answer 7

感谢之前的回答。 Xcode 进行了一些更改，以下是通过 XCode 7 代码检查并支持 iOS 7 及更高版本的 SWIFT 2 代码：

    if #available(iOS 8.0, *) {
        let settings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
        UIApplication.sharedApplication().registerUserNotificationSettings(settings)
        UIApplication.sharedApplication().registerForRemoteNotifications()
    } else {
        let settings = UIRemoteNotificationType.Alert.union(UIRemoteNotificationType.Badge).union(UIRemoteNotificationType.Sound)
        UIApplication.sharedApplication().registerForRemoteNotificationTypes(settings)
    }

Answer 8

斯威夫特 4

导入UserNotifications框架，在AppDelegate中添加UNUserNotificationCenterDelegate

import UserNotifications

class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate

为APNS注册应用程序，（在AppDelegate.swift中的didFinishLaunchingWithOptions方法中包含以下代码）

let center = UNUserNotificationCenter.current()
    center.requestAuthorization(options:[.badge, .alert, .sound]) { (granted, error) in
        // Enable or disable features based on authorization.
    }
    application.registerForRemoteNotifications()

这将调用以下委托方法

func application(_ application: UIApplication,didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    //send this device token to server

}

//Called if unable to register for APNS.
func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
    print(error)
}

收到通知后，代表将致电：

private func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {

    print("Recived: \(userInfo)")
    //Parsing userinfo:

}

Answer 9

斯威夫特 3：

let center = UNUserNotificationCenter.current()
center.requestAuthorization(options:[.badge, .alert, .sound]) { (granted, error) in
        // Enable or disable features based on authorization.
    }
UIApplication.shared.registerForRemoteNotifications()

确保在视图控制器的顶部导入 UserNotifications。

import UserNotifications

Answer 10

您可以使用以下代码 sn-p 发送通知：

let settings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
if(UIApplication.sharedApplication().currentUserNotificationSettings() == settings ){
//OK
}else{
//KO
}

Answer 11

我在 AppDelegate.swift 中使用这个代码片段：

let pushType = UIUserNotificationType.alert.union(.badge).union(.sound)
let pushSettings = UIUserNotificationSettings(types: pushType
            , categories: nil)

application.registerUserNotificationSettings(pushSettings)
application.registerForRemoteNotifications()

Answer 12

100% 工作中... 您可以正确读取一个信号文档并进行设置https://documentation.onesignal.com/docs/ios-sdk-setup OneSignal 下面的代码导入 AppDelegate

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.
    OneSignal.setLogLevel(.LL_VERBOSE, visualLevel: .LL_NONE)
    
    // OneSignal initialization
    let onesignalInitSettings = [kOSSettingsKeyAutoPrompt: false, kOSSettingsKeyInAppLaunchURL: false]
    
    OneSignal.initWithLaunchOptions(launchOptions,
                                    appId: "YOUR_ONE_SIGNAL_ID",
                                    handleNotificationAction: nil,
                                    settings: onesignalInitSettings)
    
    OneSignal.inFocusDisplayType = OSNotificationDisplayType.inAppAlert;
    // promptForPushNotifications will show the native iOS notification permission prompt.
    // We recommend removing the following code and instead using an In-App Message to prompt for notification permission (See step 8)
    OneSignal.promptForPushNotifications(userResponse: { accepted in
        print("User accepted notifications: \(accepted)")
    })

    return true
}