如何在视图上添加多个子视图而不隐藏最后添加的子视图?

时间:2016-02-27 08:56:35

标签: ios swift uiview uibutton subview

这是我的代码

  var button = [UIButton?](count:3, repeatedValue: UIButton())
  for i in 0...2{

            button[i]!.tag = i
            button[i]!.frame = CGRectMake(CGFloat(i) *(collectionViewLove?.frame.width)!/3,0,(collectionViewLove?.frame.width)!/3, 30)
            button[i]!.setTitle(titleForButtonsOneSelected[i], forState: .Normal)
            button[i]!.titleLabel?.adjustsFontSizeToFitWidth = true
            button[i]!.layer.borderWidth = 1.0
            button[i]!.layer.borderColor = UIColor.blueColor().CGColor
            button[i]!.backgroundColor = UIColor.clearColor()
            button[i]!.setTitleColor(UIColor.blackColor(), forState: .Normal)
            view.addSubview(button[i]!)

        }

问题是只显示添加到视图的最后一个按钮。如何在视图中显示所有按钮对象?

编辑: 我正在获取UIButton的帧值

  

(0.0,0.0,106.666666666667,30.0)

     

(106.666666666667,0.0,106.666666666667,30.0)

     

(213.333333333333,0.0,106.666666666667,30.0)

2 个答案:

答案 0 :(得分:2)

let buttons = Array(0...2).map { number -> UIButton in
    let button = UIButton(frame: CGRectMake(CGFloat(number) * collectionViewLove!.frame.width / 3, 0, collectionViewLove!.frame.width / 3, 30))

    button.tag = number
    button.setTitle(titleForButtonsOneSelected[number], forState: .Normal)
    buttontitleLabel?.adjustsFontSizeToFitWidth = true
    button.layer.borderWidth = 1.0
    button.layer.borderColor = UIColor.blueColor().CGColor
    button.backgroundColor = UIColor.clearColor()
    button.setTitleColor(UIColor.blackColor(), forState: .Normal)
    view.addSubview(button)

    return button
}

这样,buttons中有3个不同的按钮。您也可以在那里自定义按钮。

编辑:

let buttons = Array(0...2).forEach {
    let button = UIButton(frame: CGRectMake(CGFloat($0) * collectionViewLove!.frame.width / 3, 0, collectionViewLove!.frame.width / 3, 30))

    button.tag = $0
    button.setTitle(titleForButtonsOneSelected[$0], forState: .Normal)
    buttontitleLabel?.adjustsFontSizeToFitWidth = true
    button.layer.borderWidth = 1.0
    button.layer.borderColor = UIColor.blueColor().CGColor
    button.backgroundColor = UIColor.clearColor()
    button.setTitleColor(UIColor.blackColor(), forState: .Normal)
    view.addSubview(button)
}

答案 1 :(得分:1)

看起来button[i]!.frame = CGRectMake(CGFloat(i) *(collectionViewLove?.frame.width)!/3,0,(collectionViewLove?.frame.width)!/3, 30)每次生成相同的帧,因此您的按钮将相互叠加。你需要在你的电话中有一些动态的东西让它们处于不同的位置并且可见。