Question

如何在XCode中按下一个按钮时，其他按钮（包括按下的按钮）被禁用？当然我仍然希望通过按下按钮来执行该功能。我不希望用户能够多次按任何按钮，也不希望他们在按下第一个按钮后按下另一个按钮。以下是我在这种情况下我的两个按钮的IBActions：

@IBAction func addVote1(sender: AnyObject) {

    var query = PFQuery(className: "VoteCount")
    query.getObjectInBackgroundWithId("BiEM17uUYT") {
        (voteCount1: PFObject!, error: NSError!) ->Void in
        if error != nil {
            NSLog("%@", error)
        } else {
            voteCount1.incrementKey("votes")
            voteCount1.saveInBackgroundWithTarget(nil, selector: nil)
        }

        let votes = voteCount1["votes"] as Int
        let votes2 = voteCount1["votes2"] as Int
        self.pollResults1.text = "\(votes) votes                 \(votes2) votes"
        }
    }

@IBAction func addVote2(sender: AnyObject) {

    var query = PFQuery(className: "VoteCount")
    query.getObjectInBackgroundWithId("BiEM17uUYT") {
        (voteCount1: PFObject!, error: NSError!) -> Void in
        if error != nil {
            NSLog("%@", error)
        } else {
            voteCount1.incrementKey("votes2")
            voteCount1.saveInBackgroundWithTarget(nil, selector: nil)
        }

        let votes = voteCount1["votes"] as Int
        let votes2 = voteCount1["votes2"] as Int
        self.pollResults2.text = "\(votes) votes                 \(votes2) votes"
        }
    }
}

Answer 1

如果您尚未设置按钮的@IBOutlet属性，则添加按钮的lazy var数组。在按钮处理程序中，将每个按钮的enabled属性设置为false。

class ViewController {
    @IBOutlet var button1: UIButton!
    @IBOutlet var button2: UIButton!

    lazy var buttons: [UIButton] = [self.button1, self.button2]

    // ...

    @IBAction func addVote1(sender: AnyObject) {
        for button in self.buttons {
            button.enabled = false
        }
        // ...
    }
}

Answer 2

做一件事，给所有按钮添加唯一的标记。之后，创建创建按钮的方法，并使用按钮标记

禁用它们

func disableButton()
{
    for tagvalue in 101...102
    {
        var btnTemp = self.view.viewWithTag(tagvalue) as UIButton;
        btnTemp.enabled = false;
    }
}

在按钮中添加上述方法，如下面的代码

所示

@IBAction func addVote1(sender: AnyObject) 
{
  //Your code
  disableButton()
}

@IBAction func addVote2(sender: AnyObject) 
{
  //Your code
  disableButton()
}

Answer 3

最简单的方法是在顶部添加背景颜色为UIColor.clearColor（）的UIView。它是隐形的并捕获所有水龙头。

class ViewController {
  private var uiBlocker = UIView()

  override func viewDidLoad() {
     uiBlocker.backgroundColor = UIColor.clearColor()
  }

  @IBAction func buttonAction() {
    view.addSubView(uiBlocker)

    [stuff you want to do]

    uiBlocker.removeFromSuperView()
  }
}

Answer 4

你可以遍历UIView中的所有子视图并查找是否是UIButton，如果你可以禁用该按钮。

func disableButtons() {
        for views in view.subviews {
            if let button = views as? UIButton {
                button.enabled = false
            }
        }
    }

Answer 5

let subviews : NSArray = headerView.subviews as NSArray
    for button in subviews {

      if let button = button as? UIButton {
            //let btn = button as! UIButton
            button.isSelected = false
        }

    }

    sender.isSelected = true

如何在XCode中按下所有按钮时禁用所有按钮？

5 个答案: