Xcode 7缺少setter或实例变量

时间:2016-06-15 09:16:41

标签: xcode swift instance setter

我只是遇到了一个奇怪的麻烦。我写了一个测试应用程序,搜索min&最大数组值。在第一次应用程序正常工作,但只有一个警告:“Array MinMax [554:5057]无法连接(exitNow)插座(Array_MinMax.ViewController)到(NSButton):缺少setter或实例变量”

现在,几天后,我再次启动应用程序,输入一些值,按下按钮和应用程序立即粉碎同样的错误:

2016-06-15 12:11:40.910 Array MinMax[829:18846] Failed to connect (exitNow) outlet from (Array_MinMax.ViewController) to (NSButton): missing setter or instance variable

(lldb)

以下是代码:

import Cocoa

class ViewController: NSViewController {


    @IBOutlet weak var inputArrayValues: NSTextField!
    @IBOutlet weak var minLabel: NSTextField!
    @IBOutlet weak var maxLabel: NSTextField!
    @IBAction func exitNow(sender: AnyObject) {
        NSApplication.sharedApplication().terminate(self)
    }
    @IBAction func arrayMinMax(sender: AnyObject) {

        let someData: String? = inputArrayValues.stringValue
        let separators = NSCharacterSet(charactersInString: " ,;:|")
        let parts = someData!.componentsSeparatedByCharactersInSet(separators)

        let intArray = parts.map{Double($0)}

        let minArray = intArray.minElement({$0 < $1}) // - stops on that line (thread 1: breakpoint 1.1)
        let maxArray = intArray.maxElement({$0 < $1})

        let minString = String(minArray!)
        let maxString = String(maxArray!)

        minLabel.stringValue = "The minimal value is \(minString)!"
        maxLabel.stringValue = "The maximal value is \(maxString)!"
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    override var representedObject: AnyObject? {
        didSet {
        // Update the view, if already loaded.
        }
    }
}

该怎么办,我无法理解!这是Xcode 7.3.1的错误吗?

1 个答案:

答案 0 :(得分:0)

已经解决了这个麻烦。只需使用“NSButton”而不是“Any Object”重新创建按钮。然后,错误就消失了!