Add button in tableview footer

Question

I have tableview in one viewcontroller. I have one section in that. I want to add button in footer. I have written this code but footer view is not displaying.

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section{

    UIView *footerView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 40)];
    UIButton *addcharity=[UIButton buttonWithType:UIButtonTypeCustom];
    [addcharity setTitle:@"Add to other" forState:UIControlStateNormal];
    [addcharity addTarget:self action:@selector(addCharity:) forControlEvents:UIControlEventTouchUpInside];
    addcharity.frame=CGRectMake(0, 0, 40, 30);
    [footerView addSubview:addcharity];
    return footerView;

}

I have also set height of footer 100 in its delegate method.

screenshots: Initially i have 3 data. But when I search for particular data and result will be displayed in tableview at that time I have one data so at that time footer location changed. I want to to fix footer at initial place.

Edit:

As an alternative solution one can add button by adding extra cell at the end.

Answer 1

Per Apple's Docs you must also implement the heightForFooterInSection method, otherwise your viewForFooterInSection wouldn't do anything.

- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
{
      return 100.0f;
}

- (UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{
    if(tableView == myListTableview)  //Here you can make decision 
    {
       UIView *footerView=[[UIView alloc]initWithFrame:CGRectMake(0, 0, 320, 40)];
       UIButton *addcharity=[UIButton buttonWithType:UIButtonTypeCustom];
       [addcharity setTitle:@"Add to other" forState:UIControlStateNormal];
       [addcharity addTarget:self action:@selector(addCharity:) forControlEvents:UIControlEventTouchUpInside];
       [addcharity setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];  //Set the color this is may be different for iOS 7
       addcharity.frame=CGRectMake(0, 0, 130, 30); //Set some large width for your title 
       [footerView addSubview:addcharity];
       return footerView;
    }
}

- (void)addCharity:(id)sender
{
      NSLog(@"add to charity");
}

Answer 2

Same code in swift

func tableView(tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
        return 100.0
    }
    func tableView(tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {

        let footerView = UIView(frame:CGRectMake(0,0,320,40))

        let loginButton = UIButton(type: .Custom)
        loginButton.setTitle("LOGIN", forState: .Normal)
        loginButton.addTarget(self, action: "loginAction", forControlEvents: .TouchUpInside)
        loginButton.setTitleColor(UIColor.whiteColor(), forState: .Normal)
        loginButton.backgroundColor = UIColor.blueColor()
        loginButton.frame = CGRectMake(0, 0, 130, 30)

        footerView.addSubview(loginButton)

        return footerView
    }

    func loginAction()
    {
        print("Hello");
    }