Question

I have a method that shows 10 (or more) UIButtons. I have here a code as to how I showed these buttons..

-(void)showButtons{
for(int i = 0; i < 10; i++){
  UIButton *button = [[UIButton buttonWithType:UIButtonTypeCustom] retain];
  button.frame = CGRectMake(x, y, 100, 94);  //Assume x and y have values
  **button.tag = i + 1000;**
  [button setBackgroundImage:[_cardImages objectAtIndex:i]  
      forState:UIControlStateNormal];
  [button addTarget:self action:@selector(myMethod:)   
      forControlEvents:UIControlEventTouchUpInside];
  [self.view add subview:button];
  [button release];

}
}

-(IBAction)myMethod:(id)sender{
// I would like to print here button.tag, but I always get an error

}

Answer 1

You need to typecast the sender here because id types don’t have the tag property.
The new code will be

-(IBAction)myMethod:(id)sender{
   UIButton *pressedButton = (UIButton *)sender;
   NSLog(@"Tag of button pressed:%d",pressedButton.tag);
}