如何在XCode中按下某个按钮时禁用所有按钮？

Question

我该如何制作，以便当我按下XCode中的一个按钮时，剩下的按钮（包括被按下的按钮）变为禁用状态？当然，我仍然希望通过按下按钮来执行该功能。我只是不希望用户能够多次按下任何按钮，也不希望他们在按下第一个按钮后再按下另一个按钮。下面是我为我的两个按钮IBActions在这种情况下：

@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

的按钮设置@IBOutlet属性，如果你有没有准备好，然后添加一个lazy var阵列的按钮。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

做一两件事，所有的按钮提供独特标签。之后，创建它创建按钮的方法和使用按钮标记

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

添加上述方法在您的按钮，禁用它们如下面的代码所示

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

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

Answer 3

最简单的方法是添加一个UIView与顶部是UIColor.clearColor（）的背景颜色。它是不可见的，捕获所有的水龙头。

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

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 

Answer 5

您可以通过UIView的所有子视图循环，并发现如果是一个UIButton，如果是你可以禁用按钮。

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