how to dispose cells in UITableView when they are not needed?

I am creating a very long table with images and some text data. I am using resuable cells. I am getting high memory allocations as I scroll the table 开发者_开发知识库down, may be due to new images loads and add to resuable cells.

I want to know is there a way to dispose the resuable cells when they are not in the view.

Please help!

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You have no way to remove the reusable cells as this task is efficiently managed by the table view itself. According to me, but I need to see some code snippet to confirm, you're not disposing the images properly.

A typical case is when you load images using the -(UIImage *)imageNamed: method and in such case all images are stored in a OS managed cache which is not as efficient as manual alloc/release.

Another case is when you create the cell and forget to autorelease it. This means that in the tableView:cellForRowAtIndexPath: method when you instantiate the new UITableViewCell you must autorelease it before leaving the method (it will be retained by UITableView internal queue).