How can I get the height of a specific row in my UITableView

Simplly Use

tableView:heightForRowAtIndexPath

method

int row = 1;

int section = 0;

NSIndexPath *indexPath = [NSIndexPath indexPathForRow:row inSection:section];

float height = [self tableView:tableView heightForRowAtIndexPath:indexPath];

Hope this wil help for you :)

-(CGFloat)getHeightAtIndexPath:(NSIndexPath *)indexPath{
   if(indexPath.row == 0)
       return 20.0;
   else if(indexPath.row == 4)
       return 40.0;

  return 50.0; //Default

}

Call the above function in tableView:heightForRowAtIndexPath: as

return [self getHeightAtIndexPath:indexPath];

And you can use the same function on say button click action of a button inside a specific cell, with having button.tag=indexPath.row

-(IBAction)btnClick:(id)sender{
   UIButton *btn=(UIButton *)sender;

   NSIndexPath *indexPath=[NSIndexPath indexPathForRow:btn.tag inSection:0];

   CGFloat height=[self getHeightAtIndexPath:indexPath];

}

You can use this

CGRect frame = [tableView rectForRowAtIndexPath:indexPath];
NSLog(@"row height : %f", frame.size.height);

Using frame.size.height you can get height of particular row

Swift 3

let frame = tableView.rectForRow(at: indexPath)
print(frame.size.height)