This is an simple UIAlertView example.UIAlertView is used for the notification purpose.
Step 1: Start the program by opening the Xcode. select the option Create a new Xcode Project.
Step 2: Select the option Single view Application.
Step 3: Drag a button from object library and place it on the viewController.xib file.
Step 4: Now place the mouse over the button and right click on it and drag a line on the ViewController.h as shown below.
Step 5: Now a small window appears,here select ‘Action’ option on the Connection field.Give a name for your button method and click connect.
Step 6: Now inside the method add the code below to the ViewController.m file.
UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@”I am a AlertView” message:nil delegate:self cancelButtonTitle:@”Ok” otherButtonTitles:nil, nil]; // Creating a UIAlertView object
[alert show]; //Calling the AlertView
[alert release]; //Now the alert object is released from the stack memory
Step 8: Now Run the Project.