Question

I currently have a uitableview in place.

The data is obtained from an sqlite file.

Each column of the sqlite file will represent a list of: labels, images etc

The code i am using to get rows is

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
  AppDelegate* appdelegate = (AppDelegate*) [[UIApplication sharedApplication]delegate];
  return [appdelegate.arrayDatabase count];

}

The code to populate the cells

-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{

  static NSString *simpleTableIdentifier = @"simpleTableIdentifier";

  UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
  if (cell == Nil)
  {
    cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:simpleTableIdentifier];
  }

  AppDelegate * appdelegate = (AppDelegate*)[[UIApplication sharedApplication]delegate];
  ShowsList *sShows = [appdelegate.arrayDatabase objectAtIndex:indexPath.row];
  cell.textLabel.text = [sShows strName ];
}

The problem i am having:

I want to use the labels column to populate the cell text of ViewController1.tableview but it is returning the null rows and displaying empty rows/cells in the view.

However I want to hide the rows by either counting the null cells and applying the count to the numberOfRowsInSection: method or by simply hiding empty cells.

Hide empty cells in UITableView & How to hide a section in UITableView? looks like something similar but didn’t resolve my issue.

Could somebody please point me down the correct path or provide the answer 🙂

Thanks so much

Thomas

Answer 1

just implement a reloadTableData method like that

- (void)reloadTableData
{
// do a reload maybe from db and get yourobjects eg dbItems
// _tableItems = [NSMutableArray array];
    for (ShowsList *list in dbItems) {
        if ([list strName].length) {
            [_tableItems addObject:list];
        } 
    } 
}

then just use _tableItems array to populate your tableview

use [self reloadTableData] instead [self.tableview reloadData]

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

  return _tableItems.count;

}

-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{

  static NSString *simpleTableIdentifier = @"simpleTableIdentifier";

  UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
  if (cell == Nil)
  {
    cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:simpleTableIdentifier];
  }

  ShowsList *sShows = [_tableItems objectAtIndex:indexPath.row];
  cell.textLabel.text = [sShows strName ];
}