Slow TableView with Custom Cells

Code will help. Are you using DequeueReusableCell? What do you mean by custom cells, this could mean many things.

 

Some reasons are

images in the cells, especially loaded from a remote source,
loading data from a database, slowly
loading the cells from nibs,
other complicated drawing in the cells,
use of UITextViews in your cells
variable height rows
creating a new cell every time

 

Right, I think using clearColor as the background color is supposed to slow things down too.

 

The most important thing is to reuse your table cells. If you have complex cells with lots of info it's probably a good idea to create a custom UIView subclass and do all the drawing yourself.

The WWDC videos have a session on how to improve your table view performance.

 

Does anyone have a pointer to a good reference (or WWDC video) of how to use InterfaceBuilder with UITableView?

It seems I can do very little to create/format cells in a UITableView via IB. I was hoping for more visual control in this area as iOS matures. There is a UITableCell visual item in IB, but I can't find much info on how to use it. It seems all the Apple examples create all sections/cells in code rather than visually in IB. I am so sick of that default list that is displayed in IB (California, etc.)!

Thanks