update UITableView sectionHeaderHeight at time of UIButton click in iOS - ios

Question

Good day! My default tableview sectionHeaderHeight is 56. I want to update it when sectionOpened method gets called.This is the following code:
- (void) sectionOpened : (NSInteger) section
{
sectionHeight = #"YES";
getsection = section;
NSLog(#"Section Clicked: %ld",(long)getsection);
SectionInfo *array = [self.sectionInfoArray objectAtIndex:section];
array.open = YES;
NSInteger count = [array.category.menulist count];
NSMutableArray *indexPathToInsert = [[NSMutableArray alloc] init];
for (NSInteger i = 0; i<count;i++)
{
[indexPathToInsert addObject:[NSIndexPath indexPathForRow:i inSection:section]];
}
NSMutableArray *indexPathsToDelete = [[NSMutableArray alloc] init];
NSInteger previousOpenIndex = self.openSectionIndex;
if (previousOpenIndex != NSNotFound)
{
SectionInfo *sectionArray = [self.sectionInfoArray objectAtIndex:previousOpenIndex];
sectionArray.open = NO;
NSInteger counts = [sectionArray.category.menulist count];
[sectionArray.sectionView toggleButtonPressed:FALSE];
for (NSInteger i = 0; i<counts; i++)
{
[indexPathsToDelete addObject:[NSIndexPath indexPathForRow:i inSection:previousOpenIndex]];
}
}
UITableViewRowAnimation insertAnimation;
UITableViewRowAnimation deleteAnimation;
if (previousOpenIndex == NSNotFound || section < previousOpenIndex)
{
insertAnimation = UITableViewRowAnimationTop;
deleteAnimation = UITableViewRowAnimationBottom;
}
else
{
insertAnimation = UITableViewRowAnimationBottom;
deleteAnimation = UITableViewRowAnimationTop;
}
[menulistTable beginUpdates];
if(section==3 || section==4 || section==5) // this section has cells like submenu of a menu
{
menulistTable.sectionHeaderHeight = 20.0;
[menulistTable reloadSections:[NSIndexSet indexSetWithIndex:section] withRowAnimation:UITableViewRowAnimationNone];
//[menulistTable reloadSections:[NSIndexSet indexSetWithIndex:0] withRowAnimation:UITableViewRowAnimationNone];
}
[menulistTable insertRowsAtIndexPaths:indexPathToInsert withRowAnimation:insertAnimation];
[menulistTable deleteRowsAtIndexPaths:indexPathsToDelete withRowAnimation:deleteAnimation];
[menulistTable endUpdates];
self.openSectionIndex = section;
}
But nothing happening. I also used indexSetWithIndex:0. Whats wrong in the code?

Answer 1

Try like this to change Height:
[menulistTable beginUpdates];
menulistTable.sectionHeaderHeight = 20.0;
[menulistTable endUpdates];
Edited:
Take variable to set SectionHeaderHeight. Then place this code:
[menulistTable beginUpdates];
secHeaderHeight = 20.0;
[menulistTable endUpdates];
- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section {
return secHeaderHeight;
}
Hope it will work for you.