how to download photos from remote server to iphone app?

My situation is that I am making a uitableviewcontroller with uitableviewcells having a thumb nail or pictur开发者_运维知识库e on the left, text on the right. All data is stored in a remote server. I have made a php to communicate with backend batabase and generate JSON to pass the data to iphone through http. However, I don't know how to do the same thing to photos. Please suggest me someway to do it. Thanks!

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As Mundi said it already.

And make sure that you load them asynchronously.

There is a nice tutorial on this page: http://www.markj.net/iphone-asynchronous-table-image/

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I assume you are using NSURLConnection to fetch your data from the server. Do this:

Collect the photo data into an NSData object.
In the didFinishLoading method use this to create the images:

UIImage *thumbnailImage = [[UIImage alloc] initWithData:downloadedData];
// don't forget to discard the downloaded Data and release the image

The actual setup of your cells might be more complicated. The way I do it is to check in each call to cellForRowAtIndexPath: if I have cached the image, if not I pass to URL of the image to a NSURLConnection. I keep the open connections in an array and eliminated them when each download finishes or the view disappears. Let me know if you need more hints...