How to make a button available once a day.

[franzwarning]

Hello,

How could i make a button available only once a day?

Cheers,
George

[Speed]

Originally Posted by franzwarning

Hello,

How could i make a button available only once a day?

Cheers,
George

Here is what I used to check it if it was over a day since the last visit:

Declare difference as an NSTimeInterval. This is my code that I used and it may not work for you but it should give you a push in the correct direction.

-(void)viewDidLoad {
	NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
	
	NSTimeInterval date = [defaults doubleForKey:@"startTimeInterval"];
	
	NSTimeInterval dateNow = [NSDate timeIntervalSinceReferenceDate];
	
	difference = dateNow - date;
	
	difference = difference / 84000;
	
	if(difference >= 0 && difference <= 1) {

button.enabled = NO;
		
	}	
	
	if(difference >= 1 ) {
		dateNow = [NSDate timeIntervalSinceReferenceDate];
		[defaults setDouble:dateNow forKey:@"startTimeInterval"];
		[defaults synchronize];
button.enabled = YES;
	}	
}

It find the amount of seconds since the last time, then divides it by 84000 which is the amount of seconds in a day so you get a decimal number with the amount of days since. If it is greater than 1, it sets the current date, if it is less than 1 day, it doesn't re-set the current date. Again, this is untested as I ripped it from another app of mine, but you should get the picture I think.

[franzwarning]

Thanks so much that really helped!