cook_fighter iOS 小总结 推送通知

总结自己所遇到的开发知识，相互借鉴~

if ([UIDevice currentDevice].systemVersion.doubleValue < 8.0) {
        // 不是iOS8
        UIRemoteNotificationType type = UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert;
        // 当用户第一次启动程序时就获取deviceToke
        // 该方法在iOS8以及过期了
        // 只要调用该方法, 系统就会自动发送UDID和当前程序的Bunle ID到苹果的APNs服务器
        [application registerForRemoteNotificationTypes:type];
    }else
    {
        // iOS8
        UIUserNotificationType type = UIUserNotificationTypeBadge | UIUserNotificationTypeAlert | UIUserNotificationTypeSound;
        
        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:type categories:nil];
        // 注册通知类型
        [application registerUserNotificationSettings:settings];
        
        // 申请试用通知
        [application registerForRemoteNotifications];
    }