Question

Following code i am writing to hide some buttons in viewDidLoad. Here Buttons Are hiding

- (void)viewDidLoad
{
 for (int i = 100; i<117; i++) 
    {
        UIButton *smileyButton = (UIButton *)[scroll viewWithTag:i];
        UITextField *smileyFields = (UITextField *)[scroll viewWithTag:i];
        UIImageView *smileyImage = (UIImageView *)[scroll viewWithTag:i];
        smileyFields.hidden = YES;
        smileyButton.hidden = YES;
    }  
}

Now in Following Action am making Buttons Visible. But buttons are not Visible

-(IBAction)editButton:(id)sender
{
 for (int i = 100; i<117; i++) 
    {
        UIButton *smileyButton = (UIButton *)[scroll viewWithTag:i];
        UITextField *smileyFields = (UITextField *)[scroll viewWithTag:i];
        UIImageView *smileyImage = (UIImageView *)[scroll viewWithTag:i];
        [smileyFields setHidden:NO];   //TextFields Not Visible 
        [smileyButton setHidden:NO];  //Buttons Not Visbile
   }

}

Answer 1

If you have several views with the same tag, function viewWithTag will return only one view, so if you call this 3 times, you get always the same view.

To do what you want, you could iterate all subviews and check tags:

for (UIView *aView in scrollView.subviews) {
    if (aView.tag >= 100 && aView.tag < 117) {
        aView.hidden = NO;
    }
}