UITableView Custom cell with image
I have a UITableViewCell with a UIImageView that's 44X44 pixels. I'm loading three different tables with a total of around 200 images none of which are more than 100k. So. My problem is memory warnings that cause the app to quit quite unceremoniously. I have tried loading the image when the cell is viewed. That makes an ugly stutter. And no help with memory warnings. I have tried storing the image in memory and simple adding the image to the UIImageView when the cell is returned. Same problem, lots of stutter and memory warnings. What can I do to have the image in the cell, without the memory problems? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: UITableView Custom cell with image
On Sep 22, 2009, at 12:26 PM, Development wrote: I have a UITableViewCell with a UIImageView that's 44X44 pixels. I'm loading three different tables with a total of around 200 images none of which are more than 100k. So. My problem is memory warnings that cause the app to quit quite unceremoniously. I have tried loading the image when the cell is viewed. That makes an ugly stutter. And no help with memory warnings. I have tried storing the image in memory and simple adding the image to the UIImageView when the cell is returned. Same problem, lots of stutter and memory warnings. What can I do to have the image in the cell, without the memory problems? Don't load all of the images into memory. 200 images X 100K/image = 20MB. I don't think iPhone applications can use that much memory successfully. -- Rick Genter rick.gen...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: UITableView Custom cell with image
Please post your code. One app I have displays a list of 1,089 items. Three rows are visible on the screen and each row displays an image of size 89 x 128. I use the standard method of reusing table cells and simply assign the image only when the cell is to be displayed. There is some stuttering, but only if I try to flick through the list very fast. Normal swipes are fluid. This is also on a 3G iPhone. Sent from my iPhone On Sep 22, 2009, at 2:26 PM, Development developm...@fornextsoft.com wrote: I have a UITableViewCell with a UIImageView that's 44X44 pixels. I'm loading three different tables with a total of around 200 images none of which are more than 100k. So. My problem is memory warnings that cause the app to quit quite unceremoniously. I have tried loading the image when the cell is viewed. That makes an ugly stutter. And no help with memory warnings. I have tried storing the image in memory and simple adding the image to the UIImageView when the cell is returned. Same problem, lots of stutter and memory warnings. What can I do to have the image in the cell, without the memory problems? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/rsharp%40mac.com This email sent to rsh...@mac.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: UITableView Custom cell with image
First, you should be reusing table cells as a basic first step. If you're not doing that, start now. Second, you should solve your stutter problem by returning the cell right away and asynchronously loading the image into the cell. If you don't hold up cell creation/ display on loading of the image, you won't have stutter, and you can then add the image to the cell when it's ready. Luke On Sep 22, 2009, at 12:26 PM, Development wrote: I have a UITableViewCell with a UIImageView that's 44X44 pixels. I'm loading three different tables with a total of around 200 images none of which are more than 100k. So. My problem is memory warnings that cause the app to quit quite unceremoniously. I have tried loading the image when the cell is viewed. That makes an ugly stutter. And no help with memory warnings. I have tried storing the image in memory and simple adding the image to the UIImageView when the cell is returned. Same problem, lots of stutter and memory warnings. What can I do to have the image in the cell, without the memory problems? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/luketheh%40apple.com This email sent to luket...@apple.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
