Question

i want to implement a UIScrollView where paging is enabled and i can just flick through some images. Thats all i want to be able to do for now.

I have done this so far in interface builder: can someone help?

I dont know how to do the rest. Can someone please help me with this. I dont need any zooming functionality. I dont want any preview of the previous or next image within the scrollview, i just want a simple paging enabled scroll view that allows a user to flick through images.

All help is appreciated.
If you could tell me step by step how i could achieve this that would be most appreciated. thank you.

I’ve looked at code examples and they just have too much complexity going on. Ive looked at several and prefer a tutorial from the beginning. thank you

Answer 1

Sounds like you just need to add your content as a subview of the UIScrollView and add a gesture recognizer.

Load your image into a UIImageView. Add the UIImageView as subview of the UIScrollView.

// do this in init or loadView or viewDidLoad, wherever is most appropriate
// imageView is a retained property
self.imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image1.png"];
[scrollView addSubview:imageView];

Add a UISwipeGestureRecognizer to the UIScrollView.

// probably after the code above
UISwipeGestureRecognizer *swipe = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(handleSwipe:);
[scrollView addGestureRecognizer:swipe];
[swipe release];

On the UISwipeGestureRecognizer handler, change the loaded image in the UIImageView.

- (void)handleSwipe:(UIGestureRecognizer *)swipe {
  // do what you need to determine the next image
  imageView.image = [UIImage imageNamed:<your replacement image here>];
}