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iOS

Posted by Antonio Cancio
Antonio Cancio
1,337 Points

UIButton within UITableViewCell not registering taps

I have a custom subclass of UITableViewCell that contains a UIButton for which I want a certain action. When I tap on the button, though, nothing happens. The table cell is still selectable, and when I hold down the button, it turns to the UIControlState.Highlighted icon for the button.

How do I debug this?

This is my subclass:

    class ServerSelectionTableViewCell: UITableViewCell {

    let isSelected = UIImage(named: "star-filled.png")
    let unselected = UIImage(named: "star.png")
    var favoriteButton: UIButton? = nil

    var server : Server? = nil {
        didSet{
            if let theServer = server {
                var server : String? = theServer.serverCode
                self.textLabel?.text = serverCode
                server?.isActive() { success in
                    self.accessoryType = success ? .Checkmark : .None
                }
            }
        }
    }

    required init(coder aDecoder: NSCoder!) {
        super.init(coder: aDecoder)
    }

    override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
        super.init(style: .Subtitle, reuseIdentifier: reuseIdentifier)
        self.detailTextLabel?.textColor = UIColor.grayColor()
        self.favoriteButton = UIButton.buttonWithType(UIButtonType.Custom) as UIButton
        self.favoriteButton?.setImage(unselected, forState:         self.favoriteButton?.setImage(unselected, forState: UIControlState.Normal)
        self.favoriteButton?.setImage(isSelected, forState: UIControlState.Highlighted)
        self.favoriteButton?.setImage(isSelected, forState: UIControlState.Selected)
        self.favoriteButton?.addTarget(self, action: Selector("buttonAction:"), forControlEvents: UIControlEvents.TouchUpInside)

        self.favoriteButton?.userInteractionEnabled = true
        self.contentView.addSubview(self.favoriteButton!)
    }

    func buttonAction(sender:UIButton!) {
        println("Button tapped")
    }

    override func layoutSubviews() {
        super.layoutSubviews()

        self.favoriteButton?.frame = CGRectMake(10, 5, 35, 35)
        self.textLabel?.frame = CGRectMake(55, 5, self.bounds.width, self.bounds.height)
    }

    override func setSelected(selected: Bool, animated: Bool) {
        super.setSelected(selected, animated: animated)

        // Configure the view for the selected state
    }

}