Question

I would like to insert an NSTimer delay within a method and was wondering how to go about doing this. I’ve bolded where I would like to put the delay timer.

here’s my code so far:

- (void) buttonPressed:(UIButton*) sender {

for(int i = 0;i < [categoryBtnImages count]; i++)
{
    UIButton *but = (UIButton *)[catButtonArray objectAtIndex:i];
    if(but != sender)
    {
        [but setImage:[UIImage imageNamed:[categoryBtnImages objectAtIndex:i]] forState:UIControlStateNormal];
       // but.selected = !but.selected;

    }
}

buttonCat = (UIButton *)sender;
int tagOfButton = buttonCat.tag - 2;

if (tagOfButton == -2 ){
    tagOfButton = 8;
}
[buttonCat setImage:[UIImage imageNamed:[categoryBtnImagesSel objectAtIndex:tagOfButton]] forState:UIControlStateNormal];

I would like to put the delay here then run the rest of the code, but all from within this method.

if ([sender.titleLabel.text isEqualToString:@"Button 0"]) {
    [self foodCatSort:nil];
    [self.tableView reloadData];


}
if ([sender.titleLabel.text isEqualToString:@"Button 1"]) {
    [self healthCatSort:nil];
    [self.tableView reloadData];

}
if ([sender.titleLabel.text isEqualToString:@"Button 2"]) {
    [self shoppingCatSort:nil];
    [self.tableView reloadData];

}

}

FYI the reason I want to do this is because a button is pressed which reloads the table and the button state image changes. I would like the user to see the uibutton image change first then reload the table. I was thinking a delay would solve this.

Answer 1

If you just need a delay you dont need a NSTimer.

Use performselector: withObject: afterDelay: instead.

Something like this:

  [self performSelector:@selector(yourDelayedMethod) withObject:nil afterDelay:2];