iOS About done button in keypad

[iphonejudy]

Hi,

When i edited the text,the keypad is open.But it has no done button to close the keypad.

So,i create a button and write the below code.
//When done buton click
- (IBAction)doneButtonOnKeyboardPressed: (id)sender
{
[textField resignFirstResponder];

}
- (BOOL)textFieldShouldReturnUITextField *)theTextField {
if(theTextField == textField)
[textField resignFirstResponder];
return YES;
}

So i want to display this button when keypad open(When the page load it should be hidden)

I tried this in,

- (void)viewDidLoad {
button.hidden=true;
}

But its not working.
Can anybody please tell me the code?

1)To hide the button when view load.
2)To display button when keypad opens.

Thanks
judy

 

[dejo]

Why not just put the Done button on the keyboard, like so:

textfield.returnKeyType = UIReturnKeyDone;

 

[iphonejudy]

Why not just put the Done button on the keyboard, like so:

textfield.returnKeyType = UIReturnKeyDone;

In which event i need to write the code ?

 

[iphonejudy]

In which event i need to write the code ?

Thanks.i finished the task.