Question

New to iOS coding, so this is probably more of a syntax question than anything else. I am trying to implement a UIImageView loaded with an array of image objects. On right swipe, I want to move to the next object in the array, and load it into the view. I have the array loaded fine, just don’t know how, syntactically, how to get the current position in the array. I realize this is a total n00b question, so free reputation cred for you.

Heres some code:

- (void)viewDidLoad
{
    [super viewDidLoad];  
    imageArray = [NSArray arrayWithObjects:[UIImage imageNamed:@"1.jpg"],[UIImage imageNamed:@"2.jpg"], nil];
    imageView.image = [imageArray objectAtIndex:0];

}

- (IBAction)swipeRightGesture:(id)sender {
 imageView.image = [imageArray somethingsomething];//load next object in array
}

Answer 1

- (IBAction)swipeRightGesture:(id)sender 
{
     NSUInteger index = [imageArray indexOfObject:imageView.image] + 1;

     // do something here to make sure it's not out of bounds
     //

     imageView.image = [imageArray objectAtIndex:index];//load next object in array
}