CODEWITHSUNDEEP
iosobjective-cxcode
user4331936
user4331936

Reputation: 13

UIButton not showing up in tableview?

I want to display a UILabel and a UIButton in my app, when the table is empty. However, it's only showing the label. I know that's because I'm only adding the label to the view. How do I add the button to the view as well?

    UILabel *messageLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height)];

    messageLabel.text = @"No data is currently available. Please pull down to refresh.";
    messageLabel.textColor = [UIColor blackColor];
    messageLabel.numberOfLines = 0;
    messageLabel.textAlignment = NSTextAlignmentCenter;
    messageLabel.font = [UIFont fontWithName:@"Palatino-Italic" size:20];
    [messageLabel sizeToFit];

    UIButton *messageButton = [UIButton buttonWithType:UIButtonTypeSystem];
    [messageButton addTarget:self
                   action:@selector(aMethod:)
                   forControlEvents:UIControlEventTouchUpInside];
    [messageButton setTitle:@"Add your first service"
                   forState:UIControlStateNormal];
    messageButton.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);

    [self.tableView addSubview:messageButton];
    [self.tableView addSubview:messageLabel];

    self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;

Upvotes: 0

Views: 108

Answers (4)

Paresh Navadiya
Paresh Navadiya

Reputation: 38239

Best is to use viewForHeaderInSection method of UITableView as your requirment is to use only when empty data so it will be displayed when its empty and removed automatically when has data

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
  if([yourTblViewDataArray count] == 0)
  {
     //Add UILabel and UIButton in UIView 
     UIView *view = [[UIView alloc] init];
     //here
     return view;
  }
  else
  {
     return nil;
  }

}

HeightForHeaderInSection of UITableView which is necessary should be added:

-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section 
{ 
  //According to requirement size should vary
  if([yourTblViewDataArray count] == 0)
  {
     return 60.0f;
  }
  else
  {
     return 0.0f;
  }

}

Upvotes: 0

Miknash
Miknash

Reputation: 7948

You haven't added messageButton to any view (or not in the code you have shown).

You need something like:

[self.tableView addSubview:messageButton];
[self.tableView addSubview:messageLabel];

Upvotes: 1

Mohammed Shinoys
Mohammed Shinoys

Reputation: 41

Instead of using a tableViewController you can use a normal viewController and add a tableview in it. Also add button and label in interface. Then set these item to hidden or not based on the elements of the tableview.

Upvotes: 0

Michael Dautermann
Michael Dautermann

Reputation: 89509

What you should be doing is dropping your UILabel and UIButton into your XIB or Storyboard, whatever holds the table view, connecting them to outlets and then hiding or showing them depending on if the table has any entries or not.

But yes, Nick's answer is also correct (and +1 to him). Instead of doing "self.tableView.backgroundView", you should be doing "[self.tableView addSubview:messageButton];".

Upvotes: 2

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