Question

I have a bunch of UIButton in a UIScrollView and each UIButton takes an image from a URL. What is the easiest way so that the image will be loaded asynchronously?

For example, the usual way is:

[button setImage:[UIImage imageWithData:data] forState:UIControlStateNormal];

but this blocks the UI, I don’t want it to

Answer 1

You can try this

     [self performSelectorInBackground:@selector(loadImag) withObject:nil];

In loadImage function load the image from url and then assign it to the button.
I am not sure this will work for you…As I am a beginner in objective C development