Question

this will be difficult without pasting my whole code, but I am hoping I’m missing something simple. Basically, when there is a web link (coming from an NSDictionary), I would like to show a UIbutton, when there isn’t, the button should be invisible.

First of all I set the UIButton to invisible in - (void)viewDidLoad

thereafter is a method - (void)animationDidEndOnAnswer where the button should appear if there is a link. If I just put button.alpha = 1; then it displays at the correct time, but what I’m trying to do is have it not display if there is no weblink.

Here is the code I currently have in that method:

  - (void)animationDidEndOnAnswer 
    { 
          if ([[questions questionOnScreen] objectForKey:@"link"] == @"") {
               leesmeerButton.alpha = 0;
          } 

          else {
             leesmeerButton.alpha = 1;
          }

    NSLog(@"link is %@", [[questions questionOnScreen] objectForKey:@"link"]);

}

In the log, when there is no link I see nothing (not even a space). When there is, I see the proper weblink… I’ve also tried if ([[questions questionOnScreen] objectForKey:@"link"] == nil) but that also didn’t work.

Any help is appreciated! thanks!!

Answer 1

The problem lies on this line

if ([[questions questionOnScreen] objectForKey:@"link"] == @"")

instead of that use

if ([[[questions questionOnScreen] objectForKey:@"link"] isEqualToString:@""] || [[questions questionOnScreen] objectForKey:@"link"] != nil)