如何在iOS中獲取設備令牌？

Question

我正在處理推送通知。 我編寫了以下代碼來獲取設備令牌。

-(BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{    
        [self.window addSubview:viewController.view];
        [self.window makeKeyAndVisible];   
        NSLog(@"Registering for push notifications...");    
        [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
         (UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];
         return YES;
    }

-(void)application:(UIApplication *)app didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken 
    { 
        NSString *str = [NSString stringWithFormat:@"Device Token=%@",deviceToken];
        NSLog(@"This is device token%@", deviceToken);
    }

-(void)application:(UIApplication *)app didFailToRegisterForRemoteNotificationsWithError:(NSError *)err
 { 
        NSString *str = [NSString stringWithFormat: @"Error: %@", err];
        NSLog(@"Error %@",err);    
 }

Answer 1

試試這段代碼：

 // Register for Push Notification


 if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
    {
        [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
        [[UIApplication sharedApplication] registerForRemoteNotifications];
    }
    else
    {
        [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
         (UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)];
    }

- (void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings // NS_AVAILABLE_IOS(8_0);
{
        [application registerForRemoteNotifications];
    }

- (void)application:(UIApplication*)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData*)deviceToken{

    NSLog(@"deviceToken: %@", deviceToken);
    NSString * token = [NSString stringWithFormat:@"%@", deviceToken];
    //Format token as you need:
    token = [token stringByReplacingOccurrencesOfString:@" " withString:@""];
    token = [token stringByReplacingOccurrencesOfString:@">" withString:@""];
    token = [token stringByReplacingOccurrencesOfString:@"<" withString:@""];

}

注意：模擬器不返回deviceToken，deviceToken僅返回具有有效APNS證書的設備

Answer 2

在iOS 8和iOS 9中，您需要注冊以下通知：

NSLog(@"Registering for push notifications...");
[[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert categories:nil]];
[[UIApplication sharedApplication] registerForRemoteNotifications];

請注意，如果您還想支持iOS 7，那么您需要在早期版本的iOS上調用現有代碼。

Answer 3

在Xcode中啟用“ 推送通知 ”，這將解決問題。

Targets -> Capabilities -> Push Notifications

注意： 供應配置文件應處於活動狀態

Answer 4

同樣的問題發生在我身上所以你必須使用以下代碼來獲取設備令牌： -

- (void)application:(UIApplication *)app didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken 
{
    NSString *token = [[deviceToken description] stringByTrimmingCharactersInSet: [NSCharacterSet characterSetWithCharactersInString:@"<>"]];
    token = [token stringByReplacingOccurrencesOfString:@" " withString:@""];
    NSLog(@"content---%@", token);
} 

即使這樣它也不起作用然后請檢查您的配置文件，它應該是您為推送通知創建ssl證書的應用程序ID。

Answer 5

這是swift 4.0的最新代碼，因此您可以使用以下代碼來獲取設備令牌。

import UserNotifications

if #available(iOS 10, *) {
            UNUserNotificationCenter.current().delegate = self
            UNUserNotificationCenter.current().requestAuthorization(options:[.badge, .alert, .sound]){ (granted, error) in
            }
            UIApplication.shared.registerForRemoteNotifications()
        } else {
            UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.badge, .sound, .alert], categories: nil))
            UIApplication.shared.registerForRemoteNotifications()
        }


func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
        let token = deviceToken.map { String(format: "%.2hhx", $0) }.joined()

    }

Answer 6

在Swift 3中獲取device token

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    let token = String(format: "%@", deviceToken as CVarArg)
        .trimmingCharacters(in: CharacterSet(charactersIn: "<>"))
        .replacingOccurrences(of: " ", with: "")
    print(token)
}