calculation of cell height dynamically

Question

I have a tableview in which there is a uilabel inside the cell. label takes variable height on the basis of text.My codes are below

- (CGFloat)getLabelHeight:(UILabel*)label
{
  CGSize constraint = CGSizeMake(label.frame.size.width-10, 1000.0f);      
  CGSize size;

  NSStringDrawingContext *context = [[NSStringDrawingContext alloc] init];
  CGSize boundingBox = [label.text boundingRectWithSize:constraint
                                              options:NSStringDrawingUsesLineFragmentOrigin
                                           attributes:@{NSFontAttributeName:label.font}
                                              context:context].size;

  size = CGSizeMake(ceil(boundingBox.width), ceil(boundingBox.height));

  return size.height;
}

but setting constraint is difficult one. AnyOne knows the easiest way to calculate the height of cell dynamically and correct way of setting constraint.

This article is worth reading: http://www.raywenderlich.com/87975/dynamic-table-view-cell-height-ios-8-swift — ImWH, Dec 16 '15 at 10:18
@jinnie if possible can you please send me sample code project I'll try to solve your problem. — Nimit Parekh, Dec 16 '15 at 10:22
http://stackoverflow.com/questions/32652612/change-cell-height-by-the-content-of-the-textview-inside-the-cell/32653118#32653118 This is exactly what you want. — Irfan, Dec 16 '15 at 10:22

score 2 · Answer 1 · answered Dec 16 '15 at 10:15

If you are using autolayout then it will be easiest.Just add top,left,right and botton constraints for your UILabel, set numberofLines to 0 and line break mode to wordWrap. and in your heightForRow method pass UITableViewAutomaticDimension.

P.S. If there is only label in your cell then instead of using custom cell , use UITableViewCell and use its text label.You then won't have to manage any constraints.

calculation of cell height dynamically

1 Answers1