iOS Question
iOS countdown to show hidden button
I would like to test a code to automatic show a button that initial state is hidden for the user. Then after 40 seconds it appears.
It is a single button placed in navigation bar that performs the code below when its state would change to hidden NO
- (IBAction)done:(id)sender
{
[self.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}
I would like some help with the countdown code and initial hidden state. The code would be placed in the IBACtion or viewDidLoad...
Thnx and cheers!
Answer Source
use timer like
-(void) viewDidLoad
{
[self.btnDone setHidden:true];
[btnDone addTarget:self action:@selector(done) forControlEvents:UIControlEventTouchUpInside];
self.timer = [NSTimer scheduledTimerWithTimeInterval:3.0 target:self selector:@selector(timerFinished) userInfo:nil repeats:NO];
}
-(void)timerFinished
{
[self.btnDone setHidden:false];
}
your method.
- (void)done
{
[self.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}