Getting width of a cell in a grouped UITableView for setting section header width

Question

Header says it all really I just need to get at the cell width of the table so I can set my section header width to be the same + a few pixels. Here is semi pseudo-code for my problem.

CustomHeaderView *headerView = [[CustomHeaderView alloc] init];
headerView.frame.width = [tableView getCellFrameWidth] + 10;

Been struggling with this all day. Getting at the width of the cells in a grouped tableview seems like it should be a trivial operation, but for some reason is not. Having said that I'm a complete beginner in IOS programming so if some of you veterans out there could explain to me why this is not trivial that would be awesome.

Answer 1

分组的UITableViewCell的宽度取决于表的宽度，并计算为

table.frame.size.width/16.0*14.0

Answer 2

  UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:section]];

CGRect rect = cell.frame;

NSLog(@"Cell width = %f",rect.size.width);

Answer 3

这些东西总是随时变化的，但是分组后的UITableViewCell中的UITableView的宽度是300.0点，自iPhone OS 1.0起就一直存在。