Ios Swift-选择值后隐藏pickerView

我发现了类似的问题，他们的回答也很有帮助，但最后一件事让我束手无策。我试图在点击某个字段时显示一个pickerView，然后在选择数据时，我希望pickerView隐藏。我可以从pickerView中获取要隐藏的数据，但是，pickerView后面仍然有一个灰色矩形。如果我点击屏幕，而不是某个字段或pickerView，则灰色矩形将隐藏，然后在点击下一个字段时重新出现，仅在选择新数据后保留，直到我点击某个空白屏幕

我在下面包含了我的代码，您将看到我已经尝试了几个选项。这些并不是我尝试过的全部，但在几次尝试之后，我开始只是注释掉，而不是删除，这样我就可以记住我做了什么。我是一个非常新的编码，所以我感谢这个网站作为一个资源，并感谢您的帮助

class ViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource, UITextFieldDelegate {

    @IBOutlet var enterSeason: UITextField!

    @IBOutlet var enterSport: UITextField!

    var dataPickerView = UIPickerView()    
    var season = ["2013", "2014", "2015"] //multi-season
    var sport = ["Baseball", "Football", "Basketball", "Hockey"]
    var activeDataArray = []

    override func viewDidLoad() {
        super.viewDidLoad()

        enterSeason.inputView = dataPickerView
        enterSport.inputView = dataPickerView
        dataPickerView.delegate = self
        dataPickerView.dataSource = self
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    func textFieldDidBeginEditing(textField: UITextField) {
        activeDataArray = [] //clear out the clicked field data array
        if textField == enterSeason {
            activeDataArray = season
        } else
            if textField == enterSport {
                activeDataArray = sport
            }
        dataPickerView.reloadAllComponents()
        dataPickerView.hidden = false
    }

    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
        return 1
    }

    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return activeDataArray.count
    }

    func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String! {
        return activeDataArray[row] as! String
    }

    func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        if activeDataArray == season {
            enterSeason.text = season[row] as String
        }
        else if activeDataArray == sport {
            enterSport.text = sport[row] as String
        }
        //trying to hide the dataPicker
        dataPickerView.hidden = true
        //dataPickerView.reloadAllComponents()
        //self.dataPickerView.resignFirstResponder()
        //self.dataPickerView.frameForAlignmentRect(CGRectMake(0, 900, 375, 219))

    }

    //function to hide data in
    func textFieldShouldReturn(textField: UITextField) -> Bool {
        textField.resignFirstResponder()
        return true
    }

    //funtion to hide keyboard when screen is tapped
    override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
        self.view.endEditing(true)
    }

}

类ViewController:UIViewController、UIPickerViewDeleteGate、UIPickerViewDataSource、UIExtFieldDelegate{
@IbExtfield:UITextField！
@IbExtField！
var dataPickerView=UIPickerView（）
var季节=[“2013”、“2014”、“2015”]//多季节
var sport=[“棒球”、“足球”、“篮球”、“曲棍球”]
var activeDataArray=[]
重写func viewDidLoad（）{
super.viewDidLoad（）
enterSeason.inputView=dataPickerView
enterport.inputView=dataPickerView
dataPickerView.delegate=self
dataPickerView.dataSource=self
}
重写函数didReceiveMemoryWarning（）{
超级。我收到了记忆警告（）
//处置所有可以重新创建的资源。
}
func textField didbeginediting（textField:UITextField）{
activeDataArray=[]//清除单击的字段数据数组
如果textField==输入季节{
activeDataArray=季节
}否则
如果textField==输入运动{
activeDataArray=sport
}
dataPickerView.reloadAllComponents（）的
dataPickerView.hidden=false
}
func numberOfComponentsInPickerView（pickerView:UIPickerView）->Int{
返回1
}
func pickerView（pickerView:UIPickerView，numberOfRowsInComponent:Int）->Int{
返回activeDataArray.count
}
func pickerView（pickerView:UIPickerView，titleForRow行：Int，forComponent组件：Int）->字符串{
将activeDataArray[row]返回为！字符串
}
func pickerView（pickerView:UIPickerView，didSelectRow行：Int，不完整组件：Int）{
如果activeDataArray==季节{
enterSeason.text=季节[行]作为字符串
}
如果activeDataArray==sport，则为else{
enterport.text=sport[行]作为字符串
}
//试图隐藏数据采集器
dataPickerView.hidden=true
//dataPickerView.reloadAllComponents（）的
//self.dataPickerView.resignFirstResponder（）的
//self.dataPickerView.frameForAlignmentRect（CGRectMake（0900375219））
}
//用于在中隐藏数据的函数
func textField应返回（textField:UITextField）->Bool{
textField.resignFirstResponder（）辞职
返回真值
}
//点击屏幕时隐藏键盘的功能
覆盖func touchesBegined（触摸：设置，withEvent事件：UIEvent）{
self.view.endEditing（true）
}
}

如果要隐藏pickerView，请尝试以下操作：

func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
    if activeDataArray == season {
        enterSeason.text = season[row] as String
    }
    else if activeDataArray == sport {
        enterSport.text = sport[row] as String
    }
    //trying to hide the dataPicker
    self.view.endEditing(true)
    //dataPickerView.reloadAllComponents()
    //self.dataPickerView.resignFirstResponder()
    //self.dataPickerView.frameForAlignmentRect(CGRectMake(0, 900, 375, 219))

}

---

隐藏选择器视图的一种方法是：

self.view.endEditing(true) 

---

这对我来说很有效。

我尝试辞去didSelectRow中文本字段的第一个响应者

func pickerView(pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
if activeDataArray == season {
    enterSeason.text = season[row] as String
    enterSeason.resignFirstResponder()
}
else if activeDataArray == sport {
    enterSport.text = sport[row] as String
    enterSport.resignFirstResponder()
}

---

}

我尝试了你的建议，但有一个错误。建议的修复方法是在

endEditing

和open paren``（`）之间插入一个逗号。当我添加该逗号时，它仍然有一个错误，建议的修复方法是添加另一个逗号，等等，等等。@Greg很抱歉，我忘了您使用的是swift而不是objective cThis works..！在我的情况下..当pickerView处于“活动或打开”状态时我想转到另一个ViewController。谢谢！