如何在 iOS 中获取设备令牌？答案

【问题标题】：how to get Device Token in iOS?如何在 iOS 中获取设备令牌？
【发布时间】：2015-12-02 13:14:50
【问题描述】：

我正在处理推送通知。我编写了以下代码来获取设备令牌。

-(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);    
 }

【问题讨论】：

Get device token for push notification的可能重复

标签： ios objective-c swift devicetoken

【解决方案1】：

在 iOS 8 和 iOS 9 中，您需要像这样注册通知：

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

请注意，如果您还想支持 iOS 7，则需要在早期版本的 iOS 上调用现有代码。

【讨论】：

【解决方案2】：

我也遇到了同样的问题，所以你必须使用以下代码来获取设备令牌：-

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

即使那样它也不起作用然后请检查您的配置文件，它应该是您创建推送通知的 ssl 证书的应用 ID。

【讨论】：

【解决方案3】：

试试这个代码：

 // 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：模拟器不返回 deviceToken，deviceToken 仅在具有有效 APNS 证书的设备中返回

【讨论】：

你的笔记我认为被低估了，我会强调它，因为它解决了我的一个大问题

【解决方案4】：

在 Xcode 中启用“Push Notifications”，这将解决问题。

Targets -> Capabilities -> Push Notifications

注意： Provisioning Profiles应该处于Active状态

【讨论】：

【解决方案5】：

在 Swift 3

中获取 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)
}

【讨论】：

【解决方案6】：

这里是swift 4.0的最新代码，所以你可以使用下面的代码来获取设备令牌。

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()

    }

【讨论】：