Displaying images in sequence with a loop

Question

I got an NSArray with 5 pictures. I want to display them one after the other in a loop. My code :

 NSArray *tabImage = [[NSArray alloc] init];

tabImage = [[         


        

Answer 1

If pictoImage is an UIImageView, @Hagelin's answer is the best way to go. Now, if pictoImage is not an UIImageView object then you will have to take a different approach and that definitely is not a loop.

Set an NSTimer with a desired time interval and invoke a method that updates pictoImage iterating over the tabImages. It should be something like this :-

- (void)setup {
    ...

    [NSTimer scheduledTimerWithTimeInterval:2.0
                                     target:self
                                   selector:@selector(updatePictoImage:)
                                   userInfo:nil
                                    repeats:YES];

    ...
}

- (void)updatePictoImage:(NSTimer*)theTimer {
    static int i = 0;
    if ( i > 20 ) {
        pictoImage.image = [tabImages objectAtIndex:(i % 5)];
    } else {
       [theTimer invalidate];
    }
}

This should update the pictoImage every 2 seconds with images in tabImages.