Why is it, then the keyboard appear, just if I clicked in the right part of the UITextField?
cellForRowAtIndexPath:
EditableCell* cell = [[EditableCell alloc] initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:CellIdentifier];
cell.reportViewController = self;
cell.selectionStyle = UITableViewCellSelectionStyleNone;
cell.textLabel.text = item.text;
UITextField *textfield = [[UITextField alloc] initWithFrame:CGRectZero];
textfield.text = item.var.value;
textfield.tag = 1;
textfield.font = [UIFont fontWithName:@"Helvetica" size:16];
textfield.textColor = [UIColor colorWithRed:0.22 green:0.33 blue:0.53 alpha:1];
textfield.delegate = cell;
[cell.contentView addSubview:textfield];
return cell;
layoutSubviews:
UITextField* textfield = (UITextField *)[self viewWithTag:1];
textfield.frame = CGRectMake(self.textLabel.frame.origin.x+self.textLabel.frame.size.width+10,
self.textLabel.frame.origin.y,
tableView.frame.size.width-(self.textLabel.frame.origin.x+self.textLabel.frame.size.width)-20,
self.textLabel.frame.size.height);
views structure with the ‘Color Blended Layers’

Is something else (Other UI item) covering the left side of your UITextField?
You can use the simulator with the ‘Color Blended Layers’ feature to show if there is anything ontop of your UITextField