SDWebImage clearing cache

iphone objective-c ios sdwebimage
Eugene picture Eugene · Dec 13, 2012 · Viewed 33k times · Source

I'm displaying a list of icons downloaded from the web with text in a table view. The icons can be changed on server side and I need to replace them as soon as new icons are getting available. I try using the following code:

[imgView setImageWithURL:url placeholderImage:[UIImage imageNamed:@"table_avatar_icon"] options:SDWebImageCacheMemoryOnly];

And call [[SDImageCache sharedImageCache] clearMemory]; In my refresh callback, but it does not purge the contents of the cache. More to it, even if I close the application and open it again the image is still there.

I found only one way to clear the cache and it is by calling [[SDImageCache sharedImageCache] clearDisk];. Which only works after I close and reopen the app.

How can I force SDWebImage to not to use disk caching?

Answer

carmen_munich picture carmen_munich · Apr 29, 2013 
SDImageCache *imageCache = [SDImageCache sharedImageCache];
[imageCache clearMemory];
[imageCache clearDisk];

Don't forget to put these lines of code in your didReceiveMemoryWarning, too.

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