Most of the time I'm doing projects with storyboard but now I need to mantain an old project that used xib files. My problem is this, I have a `ViewController` with a scroller \ `UIButton` \ `UITextField` on it. If I write something like: `[scroller setHidden:YES];` inside `ViewDidLoad` the scroller will be hidden, but, if I'll put it inside

```
-(IBAction)checkMember:(id)sender{
[scroller setHidden:YES];
    [self checkMemberLog]; 

```

Only when those are complete the `setHidden` will fire up.

How can I force it to fire up instantly? What am I missing?