Question

I d like my app to have save a username and password for each user and login with it, unless it is changed to another user.
I was asking myself how I can send the Push notifications to the relevant device ?

每次用户名/密码被更改或新输入时,我需要随用户名和密码一起发送何种数据?

Answer 1

在您的 AppDelegate 中应用此方法, “ str” 值代表设备的独特字符串。在用户名和密码之外使用此选项可单独识别特定设备上的用户。

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

    NSString *str = [NSString 
        stringWithFormat:@"Device Token=%@",deviceToken];
    NSLog(str);

}

这样做的一个先决条件是,在您的应用程序中某处,通常来自应用程序Did Finish Launch

[[UIApplication sharedApplication] 
    registerForRemoteNotificationTypes:
    (UIRemoteNotificationTypeAlert | 
     UIRemoteNotificationTypeBadge | 
     UIRemoteNotificationTypeSound)];

这是在编程 iOS 推进通知中最终引用的极好结尾(从配置信息到找到编程技术的缩略图) : http://mobiforge.com/developing/story/programming-apple-push-notification-services

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