iphone - notification

I am new iPhone developer,

Can anybody suggest me what should i do here:

I have built an App in which i am finding how far the user from end location or a goal, So I have a given range (nearBy) here, if the user came within the range , he/she got a message or alert.

My question is how can notify the user? how could I show that message?

I am greatly appreciative of any guidanc开发者_JAVA百科e or help.

UILocalNotification

Instances of UILocalNotification represent notifications that an application can schedule for presentation to its users at specific dates and times. The operating system is responsible for delivering the notification at the proper time; the application does not have to be running for this to happen. Although local notifications are similar to remote notifications in that they are used for displaying alerts, playing sounds, and badging application icons, they are composed and delivered locally and do not require connection with remote servers.

You should take a look at UILocalNotification Class Reference.