Question

Is it possible to have an action from a button a) do an NSDate store when tapped, and then b) for that method to do a date comparison with an if statement?

So, for instance, if the stored NSDate was less than 12 hours ago, the user could not press the button again?

Haven’t come across a tip on this from my research.

Answer 1

Sure. You can get current date by code

[NSDate date]

Then save him into NSUserDefaults

And check a current date with saved date on button press.

How

 if ( [[NSDate date] timeIntervalSinceDate: savedDate] >= 12*60*60) // 12 hours
{    
// do your steps
}