Question

我正在尝试从xib加载自定义UIView

customView.swift

导入UIKit

@IBDesignable class customView: UIView {

var view: UIView!

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

    xibSetup()
}

required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)

    xibSetup()
}


func xibSetup() {
    view = loadViewFromNib()
    view.frame = bounds
    view.autoresizingMask = [UIViewAutoresizing.FlexibleWidth, UIViewAutoresizing.FlexibleHeight]

    addSubview(view)
}

func loadViewFromNib() -> UIView {
    let nibName:String = "customView"
    let bundle = NSBundle(forClass: self.dynamicType)
    let nib = UINib(nibName: nibName, bundle: bundle)
    let view = nib.instantiateWithOwner(self, options: nil)[0] as! UIView // **Getting error at this line**
    return view
}
}

customView.xib

文件的所有者是CustomView类。

在StoryBoard中

我有一个带有自定义类的UIView的UIViewController（Scroll View Controller）：CustomView。 xib @IBDesignable传播通过，一切顺利。

现在问题开始了。我试图在ScrollViewController中多次使用customView（就像tableView中的单元格一样），就像我对viewOne一样

MyUIViewController.swift

import UIKit


class MyUIViewController: UIViewController,UIScrollViewDelegate {

let scrollView = UIScrollView()
let height = CGFloat(234.0)

override func viewDidLoad() {
    super.viewDidLoad()

    self.scrollView.frame = CGRectMake(0, 150, self.view.bounds.size.width, height)
    self.scrollView.contentSize = CGSizeMake(height*3,self.view.bounds.size.width)
    self.scrollView.backgroundColor = UIColor.redColor()
    self.view.addSubview(self.scrollView)

    var y = CGFloat(0.0)

    for i in 0..<2 {

        //Adding viewOne
        let viewOne = self.createViewOne(i)
        viewOne.frame = CGRectMake(0, y, 320, 200)
        self.scrollView.addSubview(viewOne)

        //Adding CustomView
        let customView = self.createCustomView(i)
        customView.frame = CGRectMake(0, y, 320, 200)
        self.scrollView.addSubview(customView)

        y += height
    }

}

func createViewOne(index: Int) -> UIView {
    let viewOne = UIView()

    if index == 0{
        viewOne.backgroundColor = UIColor.greenColor()
    }

    if index == 1{
        viewOne.backgroundColor = UIColor.redColor()
    }

    return viewOne
}


func createCustomView(index: Int) -> UIView {

    let customViewDummy: customView = NSBundle.mainBundle().loadNibNamed("customView", owner: self, options: nil)[0] as! customView

    if index == 0{
        customViewDummy.backgroundColor = UIColor.greenColor()
    }

    if index == 1{
        customViewDummy.backgroundColor = UIColor.redColor()
    }

    return customViewDummy
}


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

我正在尝试在ViewController中多次从nib加载自定义UIView。

我提到了以下链接 - How to use custom nib view in ViewController multiple times

我正在使用Xcode 7.3.1

任何建议表示赞赏。提前谢谢。

Answer 1

您要在view中再创建一个customView并将其添加为subView。因此有些不匹配。请尝试以下代码，并确保filesOnwer设置为customView：

@IBDesignable class customView: UIView {

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

        loadViewFromNib()
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)

        loadViewFromNib()
    }

    func loadViewFromNib() -> UIView {
        let myView = NSBundle.mainBundle().loadNibNamed("customView", owner: self, options: nil).first as! UIView
    return myView
    }
}

从xib加载子视图到UIScrollView时在swift中获取错误'EXC_BAD_ACCESS'

1 个答案: