Question

i added two custom view classes and the elements of that class are addede to viewcontroller class but i cannot accecssing 1st element but i can access second element

hear my code

1st class

class TextField: UIView {

override init(frame: CGRect) {
    super.init(frame: frame)


    let view=UIView(frame : CGRectMake(8,100,270,47))

    let headerText=UILabel(frame :   CGRectMake(0,0,view.bounds.width,16))
    headerText.text="label"
    headerText.textColor=UIColor.blackColor()
    headerText.textAlignment=NSTextAlignment.Left
    headerText.font = UIFont.systemFontOfSize(13.0)
    headerText.numberOfLines = 0
    view.addSubview(headerText)

    let textField=UITextField(frame : CGRectMake(0,20,view.bounds.width,28))
    textField.borderStyle=UITextBorderStyle.RoundedRect
    textField.userInteractionEnabled=true
    textField.keyboardType=UIKeyboardType.NamePhonePad

    view.addSubview(textField)

    self.addSubview(view)
}

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

}

2nd class

protocol ElementDelegate {

func buttonClick(sender:UIButton)

}

class ButtonClass: UIView {

override init(frame: CGRect) {
    super.init(frame: frame)

    let button=UIButton(frame: CGRectMake(10,50,270,30))
    button.setTitle("Click", forState: UIControlState.Normal)
    button.backgroundColor=UIColor.blueColor()
    button.userInteractionEnabled=true
    button.addTarget(self, action: #selector(button_click(_:)), forControlEvents: UIControlEvents.TouchUpInside)

    self.addSubview(button)

}

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

func button_click(sender:UIButton){
   delegate.buttonClick(sender)
}

}

my viewcontroller class

class ViewController: UIViewController,ElementDelegate {

override func viewDidLoad() {

   let screenSize:CGRect=UIScreen.mainScreen().bounds


    let date = TextField(frame: CGRectMake(0,10,screenSize.width,screenSize.height))
    self.view.addSubview(date)

   let element = Button(frame: CGRectMake(0,70,screenSize.width,screenSize.height))
   element.delegate = self
     self.view.addSubview(element)
 }

}

when under running i added first textfield view second i added button view but when i click in textbox i cannot accessing it but button is working fine when i remove button textbox working fine why i cannot accessing both one after another

please help me.....

Answer 1

let date = TextField(frame: CGRectMake(0,10,screenSize.width,screenSize.height))
...
let element = Button(frame: CGRectMake(0,10,screenSize.width,screenSize.height))

您创建了两个具有完全相同帧（大小和位置）的子视图。您添加的第二个将位于另一个之上，即使其中的按钮和文本字段位于不同的位置，也会接受触摸事件 - 普通UIView仍会接受触摸事件。

为什么要创建一个视图子类，它只是在另一个位置保存另一个视图？为什么不直接定位按钮和文本字段？

UIElements does not firing on view highrarchy

1 个答案: