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How to know if tableview row is odd or even agnostic of the section it is in


How to know if tableview row is odd or even agnostic of the section it is in

By : Fiftyapp Fuse
Date : November 21 2020, 07:31 AM
it should still fix some issue Add the number of rows that come in all the sections before the given section. Then you can do a modulus operation to determine if it is even or odd. You can use this in cellForRowAtIndexPath: to change the color based on isOdd.
code :
NSUInteger row = indexPath.row;
for (int i = 0; i < indexPath.section; i++) {
    row += [tableView numberOfRowsInSection:i];
}
BOOL isOdd = row % 2;  // if it is divisible by 2, this will be 0. if it isn't, it is 1


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Is is possible to make tableview section headers scroll with the cells in a plain tableview?

Is is possible to make tableview section headers scroll with the cells in a plain tableview?


By : Onion
Date : March 29 2020, 07:55 AM
Any of those help In a plain tableview I am pretty sure that you cannot change the way sections headers scroll.
BUT, you might be able to get a similar effect. If you leave out the section headers and instead put the header into the first cell of the section, then it will definately scroll the way you want it to.
code :
- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath;
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath;
Getting the real width of a tableview cell during -tableView:heightForRowAtIndexPath: when there is a section index pres

Getting the real width of a tableview cell during -tableView:heightForRowAtIndexPath: when there is a section index pres


By : user2274884
Date : March 29 2020, 07:55 AM
I hope this helps . Here's what I got working. It's ugly, but it works, at least in all the cases I could find.
code :
- (CGFloat)sectionIndexWidthForSectionIndexTitles:(NSArray *)titles {
  UIFont *sectionIndexFont = [UIFont fontWithName:@"Helvetica-Bold" size:14.0f];
  CGFloat maxWidth = CGFLOAT_MIN;
  for(NSString *title in titles) {
    CGFloat titleWidth = [title sizeWithFont:sectionIndexFont].width;
    maxWidth = MAX(maxWidth, titleWidth);
  }

  CGFloat sectionIndexWidth = 0.0f;
  NSUInteger maxWidthInt = (int)maxWidth;
  switch(maxWidthInt) {
    case 0:
      sectionIndexWidth = 0.0f;
      break;
    case 11:
      sectionIndexWidth = 30.0f;
      break;
    case 12:
      sectionIndexWidth = 31.0f;
      break;
    case 14:
      sectionIndexWidth = 32.0f;
      break;
    default:
      sectionIndexWidth = 0.0f;
      break;
  }

  return sectionIndexWidth;  
}
way to call - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section without reloading

way to call - (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section without reloading


By : shim
Date : March 29 2020, 07:55 AM
To fix this issue I have done: , Try:
code :
[tableView beginUpdates];
//do stuff...
[tableView endUpdates];
swift weird tableview scroll behaviour from tableView header section

swift weird tableview scroll behaviour from tableView header section


By : AceKick
Date : March 29 2020, 07:55 AM
around this issue I have a weird tableview header behaviour when scrolling. , Set this in viewDidLoad():
code :
automaticallyAdjustsScrollViewInsets = false
tableView.contentInset = UIEdgeInsets(top: <#T##CGFloat#>, left: <#T##CGFloat#>, bottom: <#T##CGFloat#>, right: <#T##CGFloat#>)
Why - (void)tableView:(UITableView *)tableView willDisplayHeaderView:(UIView *)view forSection:(NSInteger)section not ca

Why - (void)tableView:(UITableView *)tableView willDisplayHeaderView:(UIView *)view forSection:(NSInteger)section not ca


By : Douglas Gregory
Date : March 29 2020, 07:55 AM
wish help you to fix your issue The class returned by tableView:viewForHeaderInSection: needs to be a subclass of UITableViewHeaderFooterView for the tableView:willDisplayHeaderView:forSection: method to get called.
If the returned view is of some other type, the tableView:willDisplayHeaderView:forSection: method will not get called.
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