How do I fill the background color of a UITableViewCell?

How do I fill the background color of a UITableViewCell? I tried this code but it didn't work.

cell.backgroundColor = 开发者_运维知识库[UIColor redColor];

Try setting a backgroundView for UITableViewCell :

UIView *bgView = [[UIView alloc] init];
bgView.backgroundColor = [UIColor redColor];
cell.backgroundView = bgView;
// release object
[bgView release];

You can change the selection background view of UITableViewCell the same way.

cell.selectedBackgroundView = bgView;

Setting the background color though UITableViewCell's backgroundColor property only works in a Grouped table view. So if your table view is in the Plain style then it won't work.

You can of course set the background color of the UITableView's contentView. But then you probably have to do some additional work as the other subview (text labels and accessory views) have their own idea of background colors.

Take a look at the following snippet from the UITableViewCell documentation.

http://developer.apple.com/library/ios/#documentation/uikit/reference/UITableViewCell_Class/Reference/Reference.html

Note: If you want to change the background color of a cell (by setting the background color of a cell via the backgroundColor property declared by UIView) you must do it in the tableView:willDisplayCell:forRowAtIndexPath: method of the delegate and not in tableView:cellForRowAtIndexPath: of the data source. Changes to the background colors of cells in a group-style table view has an effect in iOS 3.0 that is different than previous versions of the operating system. It now affects the area inside the rounded rectangle instead of the area outside of it.

That should solve your problem.