UIButton in code - ios

Question

I need to add a gesture (move, rotate, scale) to a UIButton.
I created the button in code, but I don't know how to use it.
If the button is touched I want to move, scale or rotate.
Here is my code:
-(void)addButton{
UIScrollView *scrollview=[[UIScrollView alloc]initWithFrame:CGRectMake(0,0,320,480)];
scrollview.showsVerticalScrollIndicator=YES;
scrollview.scrollEnabled=YES;
scrollview.userInteractionEnabled=YES;
[self.view addSubview:scrollview];
scrollview.contentSize = CGSizeMake(self.view.bounds.size.width,1000.0);
buttonImage1 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
buttonImage1.frame = CGRectMake(100, 20, 100, 100);
UIImage *btnImage1 = [UIImage imageWithData:[NSData dataWithContentsOfURL:
[NSURL URLWithString:adres1]]];
[buttonImage1 setImage:btnImage1 forState:UIControlStateNormal];
[scrollview addSubview:buttonImage1];
buttonImage2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
buttonImage2.frame = CGRectMake(100, 180, 150, 150);
UIImage *btnImage2 = [UIImage imageWithData:[NSData dataWithContentsOfURL:
[NSURL URLWithString:adres2]]];
[buttonImage2 setImage:btnImage2 forState:UIControlStateNormal];
[scrollview addSubview:buttonImage2];
buttonImage3 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
buttonImage3.frame = CGRectMake(100, 450, 194, 146);
UIImage *btnImage3 = [UIImage imageWithData:[NSData dataWithContentsOfURL:
[NSURL URLWithString:adres3]]];
[buttonImage3 setImage:btnImage3 forState:UIControlStateNormal];
[scrollview addSubview:buttonImage3];
}
-(void) move
{
}

Answer 1

I need to add a gesture (move, rotate, scale) to a UIButton.
I'm not sure I understand what you mean about adding a gesture. Right now, your buttons aren't set up to do anything at all.
I created the button in code, but I don't know how to use it.
You need to add a target and action to your button. When a button is tapped, it sends an action message to some other object, which is its target. To set up a button, you need to add a target and action using the -addTarget:action:forControlEvents: method inherited from UIControl. If you want the button to send a move message to the same object that's creating the button, you'd change your addButton method to include this:
[buttonImage1 addTarget:self action:#selector(move) forControlEvents:UIControlEventTouchUpInside];