CODEWITHSUNDEEP
iosobjective-cuitableview
Jaffer Sheriff
Jaffer Sheriff

Reputation: 1564

Unable to get index path of a UITableViewCell

I have a table view with dynamic cells constructed with autolayout. I have a UITextView as subview inside UITableViewCell . This UITextView can grow vertically i.e scroll is disabled for this text view and it's height constraint is equal to cell content view's height. So whenever textview height increases then corresponding cell's height will also increase.

I need to get indexpath of any given cell. When textview height becomes higher than screen height then indexPathForCell returns nil. I also tried indexPathForRowAtPoint:[cell center] it also returns nil. I cannot get indexpath from my model cells array since model don't have my cell (cell was already deleted from model array). 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
      NSMutableArray *cellArray = [tableViewCellsDictionary objectForKey:[NSNumber numberWithUnsignedLong:sectionIndex]];
      return [cellArray objectAtIndex:rowIndex];
  }

-(void) updateTextViewTextInCell:(CustomCell *) cell {
      NSIndexPath *currentCellIndexPath1 = [tableView indexPathForCell:cell];  // Returns nil
      NSIndexPath *currentCellIndexPath2 = [tableView indexPathForRowAtPoint:[cell center]]; // Returns nil
}

I call this updateCellTextView method from textViewDidEndEditing to save the textview's text in my model.

But I'm not able to get indexpath of cell.

How to get index path of a cell in this kind of scenarios i.e when cell is completely out of screen .

Image

Upvotes: 0

Views: 709

Answers (2)

Sunny
Sunny

Reputation: 831

If you want to get the indexpath of cell in textViewDidEndEditing you can use this code.

 CGPoint point = [textView convertPoint:CGPointZero toView:self.tableview];
 NSIndexPath *indexPath = [self.tableview indexPathForRowAtPoint:point];

Upvotes: 1

dahiya_boy
dahiya_boy

Reputation: 9503

Obviously you never get indexpath of cell like this because this is only applicable in the UItableViewDelegates and UItableViewDatasource methods.

As per I understand, Now you need to know on which UITextView user is end texting. So one of the better approach is as below :

  1. in cellForRow

cell.textView.tag = indexPath.row

Here you have assigned tag to the textView which is equivalent to its indexpath.row. Now when ever you are talking about textView.tag, it gives you the textView of that particular cell and textView.tag is that particular cell you have TextView

  1. in - (BOOL)textViewShouldBeginEditing:(TextView *)textView

    textView.tag // gives you indexPath.row of the textview where user ends editing

NOTE : If you have UITextView/UItextfieldin UItableView, its value is always lost whenever your cell is out of screen. So to overwhelm this problem use dictionary save the each and every value of UITextView/UItextfield in TextdidChange Method.

Hope now you got it.

Upvotes: 0

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