Question

In viewDidLoad I show a text on label

[label setText:@"hello"];

and after a certain event I hide it. Now I want a condition to check

if([label.text isEqualToString:@"hello"] is visible on screen for >= 30 seconds)
{
//some code......
}

Please help me to make this check

Answer 1

Are you looking for something like this?

    {
     //your method.
     [label setText:@"hello"];
     [self performSelector:@selector(afterDelay) withObject:nil afterDelay:30];
    }

   -(void)afterDelay {
    [label setText:@""];
    }

And the condition that you can use:

   if(label.text.length == 0) {
   }