在APNS中，除了iPhone 4之外，无法在任何设备中获取设备令牌

Question

在APNS中，除iPhone 4和didRegisterForRemoteNotificationsWithDeviceToken未执行外，它无法在任何设备中获取设备令牌 - 推送通知。

Answer 1

试试这个......

if (SYSTEM_VERSION_LESS_THAN(@"8.0")) {
    [application registerForRemoteNotificationTypes:  (UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound)];
} else {
    UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIRemoteNotificationTypeBadge|UIRemoteNotificationTypeSound|UIRemoteNotificationTypeAlert) categories:nil];
    [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
}

Answer 2

在App委托中尝试使用DidFinishLaunchingWithOption： iphone 4仅在iOS7上运行。

 if ([application respondsToSelector:@selector(registerUserNotificationSettings:)])
    {
        UIUserNotificationType userNotificationTypes = (UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound);
        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:userNotificationTypes categories:nil];
        [application registerUserNotificationSettings:settings];  
    }
    else
    {
        // Register for Push Notifications, if running iOS version < 8
        [application registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound)];

    }