How to code on button click how to increase row height in iphone/ios/uitableview

Question

how to code on button click how to increase row height in iphone/ios/uitableview
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath;
    pppp=[postText objectAtIndex:indexPath.row];
    CGSize maxSize = CGSizeMake(280, MAXFLOAT);//set max height
     CGSize cellSize = [pppp sizeWithFont:[UIFont systemFontOfSize:14]
                       constrainedToSize:maxSize
                           lineBreakMode:NSLineBreakByWordWrapping];//this will return correct height for text
    // return  cellSize.height+115;
    BOOL isSelected = [self.selectedIndexPaths containsObject:indexPath];
    CGFloat maxHeight = MAXFLOAT;
    CGFloat minHeight = cellSize.height+115;
    CGFloat constrainHeight = isSelected?maxHeight:minHeight;
   CGFloat constrainWidth  = tableView.frame.size.width - 20.0f;
    NSString *text       = hChildPost[indexPath.row];
    CGSize constrainSize = CGSizeMake(constrainWidth, constrainHeight);
     CGSize labelSize     = [text sizeWithFont:[UIFont systemFontOfSize:15.0f]
                            constrainedToSize:constrainSize
                                lineBreakMode:NSLineBreakByCharWrapping];
   // return MAX(labelSize.height+75, 100.0f);     return MAX(labelSize.height+75,cellSize.height+115);    
i used this code but it crashed app

Answer 1

On what line did it "crashed app" and what was the exception? The line within this function, not in main.m. If you haven't figured this out yet: view the debugger output, try single stepping, and/or add NSLog messages in the function.