CODEWITHSUNDEEP
iosobjective-c
William Falcon
William Falcon

Reputation: 9813

UIWebImage+ AFNetworking images shifting in cells

I have a collection view. In the cellForRow method I set an object in my collectionViewCell. The setter for that object takes the object's image url and downloads the image asynchroneously using AFNetworking. (the setter is in the custom cell subclass )

However when I download new images and i reloadData, I have to scroll down for the proper images to load... And sometimes the images change cells or duplicate (but I know the object in that cell doesn't change because the object title is the expected one.

What is happening?

Upvotes: 0

Views: 272

Answers (2)

Oliver Atkinson
Oliver Atkinson

Reputation: 8029

If you want the image to swap out without reloading the cell (or scrolling down) you will need to call:

[self.imageView setImageWithURL:<#some url#> placeholderImage:<#placeholder image same size as imageview#>];

AFNetworking takes care of caching images so you can be safe to call the same setter every time cellForRow is called (to avoid image reuse on different cells)

NB: Its important the placeholder image is the same size as the imageView - your image will be swapped out.

Upvotes: 2

Adithya
Adithya

Reputation: 4705

I think this could be mainly because of the cell being reused bu the collectionview. Try setting the image property of your custom cell to nil right after dequeueReusableCellWithReuseIdentifier:

Upvotes: 0

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