Recently while developing an app, I ran into an issues where the iPhone keyboard was sliding up and covering the text field. I did some quick searching on the on the internet an came across some sample code on StackOverflow (http://stackoverflow.com/questions/1247113/iphone-keyboard-covers-text-field)

I took the code that was given and spun it for my own uses. After placing the code in the project, I linked the hidden textFields ‘Editing Did Begin” and “Editing Did End” events to the “slideFrameUp” and “slideFrameDown” methods.

The end result works great!

-(IBAction) slideFrameUp;
{
[self slideFrame:YES];
}

-(IBAction) slideFrameDown;
{
[self slideFrame:NO];
}

-(void) slideFrame:(BOOL) up
{
const int movementDistance = 50; // tweak as needed
const float movementDuration = 0.3f; // tweak as needed

int movement = (up ? -movementDistance : movementDistance);

[UIView beginAnimations: @"anim" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
self.view.frame = CGRectOffset(self.view.frame, 0, movement);
[UIView commitAnimations];
}