The following code will generate a custom autocomplete Table View `autocompleteTableView` below my text field `txtActivity`. How do I hide the Table View when text field is empty. 

```
- (void)viewDidLoad
{    
     [super viewDidLoad];
     self.txtActivity.delegate = self;
     [self cofigureAutoComTableView];
}

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)rangereplacementString:(NSString *)string 
{
    autocompleteTableView.hidden = NO;

    NSString *substring = [NSString stringWithString:textField.text];
    substring = [substring stringByReplacingCharactersInRange:range withString:string];
    [self searchAutocompleteEntriesWithSubstring:substring];
    return YES;
}

- (void)searchAutocompleteEntriesWithSubstring:(NSString *)substring 
{

    autocompleteMArray = [[NSMutableArray alloc] init];

    [autocompleteMArray removeAllObjects];

    for(NSString *curString in sCategory) { //**** sCategory is a mutable array generated in another method not shown ****

    NSRange substringRange = [curString rangeOfString:substring];

    if (substringRange.length > 0) {

        [autocompleteMArray addObject:curString];
    }

}
  NSLog(@"*******The autocompleteMArray : %@ ", autocompleteMArray);
  [autocompleteTableView reloadData];
}

-(void)cofigureAutoComTableView
{
     autocompleteTableView = [[UITableView alloc] initWithFrame:CGRectMake(self.txtActivity.frame.origin.x-10,self.txtActivity.frame.origin.y+32,self.txtActivity.frame.size.width, 120) style:UITableViewStylePlain];

     autocompleteTableView.delegate = self;
     autocompleteTableView.dataSource = self; //**** Setting this to self, is it correct???
     autocompleteTableView.scrollEnabled = YES;
     autocompleteTableView.hidden = YES;
     [self.view addSubview:autocompleteTableView];

}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
     return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return autocompleteMArray.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *cellIdentifier = @"cellIdentifier";

    UITableViewCell *cell = [self.autocompleteTableView dequeueReusableCellWithIdentifier:cellIdentifier];

    if(cell == nil) 
    {
       cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
     }

     cell.textLabel.text =  [autocompleteMArray objectAtIndex:indexPath.row];

    return cell;
  }

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath (NSIndexPath *)indexPath;
{
    //**** NOT DETECTING *******
    NSLog(@"Selected Cell %@", [autocompleteMArray objectAtIndex:indexPath.row]);
}

```