Dismiss keyboard on touch anywhere outside UITextField

http://stackoverflow.com/questions/5306240/iphone-dismiss-keyboard-when-touching-outside-of-uitextfield

In viewDidLoad

UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]

initWithTarget:self

action:@selector(dismissKeyboard)];

[self.view addGestureRecognizer:tap];

In dismissKeyboard:

-(void)dismissKeyboard {

[aTextField resignFirstResponder];

}