change image on click of button in objective c

Question

i draged 3 button in my .xib file (btn1,btn2,btn3 respectively) and initially i given default image to them, first.png

now when user clicks on btn1, image of btn1 should

Answer 1

You have to set button action method code

-(IBAction)btnClked:(id)sender
{
  [btn1 setImage:[UIImage imageNamed:@"first.png"] forState:UIControlStateNormal];
  [btn2 setImage:[UIImage imageNamed:@"first.png"] forState:UIControlStateNormal];
  [btn3 setImage:[UIImage imageNamed:@"first.png"] forState:UIControlStateNormal];

  UIButton *btn=(UIButton *)sender;

  [btn setImage:[UIImage imageNamed:@"second.png"] forState:UIControlStateNormal];
}