Question

I’ve got a tableView in storybord and UISegmentedControl to populate the over mentioned table with with different data and different design. My problem is that numberOfRowsInSection meth doesn’t react when I switch UISegmentedControl.

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if(self.segment.selectedSegmentIndex==0)
{
    return [self.items count];
    NSLog(@"Nominals: %d",self.items.count);
}
if(self.segment.selectedSegmentIndex==1)
{
    return [self.coinageArr count];
    NSLog(@"Coinage: %d",self.coinageArr.count);
}
//return 0; Complains about no return.
}

Well, NSLogs do not work while navigating. And how to return NSInteger in this case?

Thanx in advance.

EDIT: For shannoga

segment controller switch method:

-(IBAction)segmentValueChaged:(id)sender
{
switch (self.segment.selectedSegmentIndex) 
{
    case 0:
    {
         DBAccess *access=[[DBAccess alloc]init];
        self.items=[access returnNominals:self.entityID nk:fromPeriod];
        [access closeDataBase];            
        self.tableView.hidden=NO;
        [self.tableView reloadData];
         break;
    }
    case 1:
    {
        DBAccess *access=[[DBAccess alloc]init];
        self.coinageArr=[access returnCoinage:fromPeriod period:self.entityID];
        self.tableView.hidden=NO;
        [self.tableView reloadData];

        break;
    }
}
}

Answer 1

• The NSLog won’t work because the return take effect before you get to this line and it will never be executed.

Change it to:

    - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
if(self.segment.selectedSegmentIndex==0)
{
     NSLog(@"Nominals: %d",self.items.count);
    return [self.items count];
}
if(self.segment.selectedSegmentIndex==1)
{
   NSLog(@"Coinage: %d",self.coinageArr.count);
    return [self.coinageArr count];
}
//return 0; Complains about no return.
}

• Can you show the method that you call when the UISegmentedControl is changed?
• Pay attention that you don’t need to set 2 if statements you could use else.

• As @Ryan said you should use [tableview reloadData] on your UISegmentedControl change. Then it will be better if you change the self.items array in your valueChanged method and leave the numberOfRowsInSection with out a change so it will look like that:

    - (void)valueChanged:(id)sender
    {
      if(self.segment.selectedSegmentIndex==0)
      {
          self.items = what ever
      }else{
          self.items = what ever
      }
      [tableview reloadData];
     }
  
      - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
       return [self.items count];
     }
  

Good Luck