Posting an alert message for low memory warnings

The following code can be used to create an alert message if the application receives a system memory warning.  This method is included in the AppDelegate .m file.

- (void)didReceiveMemoryWarning {
    // Displays an alert message if there is a memory warning
    [super didReceiveMemoryWarning];

//    NSError *error;
//    NSLog(@"Unresolved error %@, %@", error, [error userInfo]);            //error log message
    UIAlertView *memoryAlert = [[UIAlertView alloc] initWithTitle:@"Low Memory Warning"
            message:@"Close some programs!"
            delegate:nil   
            cancelButtonTitle:@"Cancel"
            otherButtonTitles:nil];
    [memoryAlert show];
    [memoryAlert release];   
   
    // Release any cached data, images, etc that aren't in use.
}

The alert message could also be used to log an error code or message.