Adding UIButton to the center of a UITableViewCell using Swift - uitableview

Question

The following code only shows button in the last row of the table. Any thoughts on why?
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell:UITableViewCell = self.myTable.dequeueReusableCellWithIdentifier("cell") as UITableViewCell
let button : UIButton = UIButton.buttonWithType(UIButtonType.Custom) as UIButton
button.frame = CGRectMake(40, 60, 100, 24)
button.center = self.view.center
button.backgroundColor = UIColor.redColor()
button.addTarget(self, action: "buttonClicked:", forControlEvents:
UIControlEvents.TouchUpInside)
button.setTitle("Click Me !", forState: UIControlState.Normal)
cell.addSubview(button
}
return cell
}

Answer 1

Jawwad's suggestion fixed it. For documentation here is the entire working function:
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell:UITableViewCell = tableView.dequeueReusableCellWithIdentifier("cell") as UITableViewCell
let button : UIButton = UIButton.buttonWithType(UIButtonType.Custom) as UIButton
button.frame = CGRectMake(40, 60, 100, 24)
let cellHeight: CGFloat = 44.0
button.center = CGPoint(x: view.bounds.width / 2.0, y: cellHeight / 2.0)
button.backgroundColor = UIColor.redColor()
button.addTarget(self, action: "buttonClicked:", forControlEvents: UIControlEvents.TouchUpInside)
button.setTitle("Click Me !", forState: UIControlState.Normal)
cell.addSubview(button)
return cell;
}

Answer 2

Instead of
button.center = self.view.center
Try
let cellHeight: CGFloat = 44.0
button.center = CGPoint(x: view.bounds.width / 2.0, y: cellHeight / 2.0)
This assumes that your tableView is full width and your cellHeight is 44.0. You can't get the actual height from the cell itself just yet. If you want the actual height you'd have to get it from the tableView:willDisplayCell:forRowAtIndexPath: method or do something else.
Also instead of using self.myTable you should use the tableView variable in the method itself.

Answer 3

If anyone is looking for a Swift 3 conversion of the above answer, try this:
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: textCellIdentifier, for: indexPath)
let button : UIButton = UIButton(type:UIButtonType.custom) as UIButton
button.frame = CGRect(origin: CGPoint(x: 40,y :60), size: CGSize(width: 100, height: 24))
let cellHeight: CGFloat = 44.0
button.center = CGPoint(x: view.bounds.width / 2.0, y: cellHeight / 2.0)
button.backgroundColor = UIColor.red
button.addTarget(self, action: #selector(buttonClicked), for: UIControlEvents.touchUpInside)
button.setTitle("Click Me !", for: UIControlState.normal)
cell.addSubview(button)
return cell
}
func buttonClicked(sender : UIButton!) {
print("Clicked!")
}