ios - Swift 实例化 UIViewController 并在同一文件中添加为 subview

Question

我对 Swift 和原生 iOS 开发非常陌生。

我成功地在 Swift 中创建了一个标签，它在我的应用程序中显示如下:

import UIKit
import SpreadsheetView

class SampleView: UIView {

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

    let label = UILabel(frame: CGRect(x: 0, y: 0, width: 100, height: 50))
    label.text = "This is Swift"
    self.addSubview(label)

  }

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

}

但是我现在需要添加一个 SpreadsheetView - 从这里 - https://github.com/kishikawakatsumi/SpreadsheetView

我的代码对此进行了更改，而不是添加标签:

import UIKit
import SpreadsheetView

class ViewController: UIViewController, SpreadsheetViewDataSource {
  @IBOutlet weak var spreadsheetView: SpreadsheetView!

  override func viewDidLoad() {
    super.viewDidLoad()
    spreadsheetView.dataSource = self
  }

  func numberOfColumns(in spreadsheetView: SpreadsheetView) -> Int {
    return 200
  }

  func numberOfRows(in spreadsheetView: SpreadsheetView) -> Int {
    return 400
  }

  func spreadsheetView(_ spreadsheetView: SpreadsheetView, widthForColumn column: Int) -> CGFloat {
    return 80
  }

  func spreadsheetView(_ spreadsheetView: SpreadsheetView, heightForRow row: Int) -> CGFloat {
    return 40
  }
}

class SampleView: UIView {

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

    let storyboard = UIStoryboard(name: "MyStoryboardName", bundle: nil)
    let controller = storyboard.instantiateViewController(withIdentifier: "ViewController");
    self.addSubview(controller.view);
  }

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

}

但是在运行时我得到了一个 SIGABRT，我是否以正确的方式处理这个问题。我看到很多关于添加像这样的 Controller 的文章 - Adding View controllers as subview in Swift - 但请您帮我解决上述问题。

这是我的截图:

Answer 1

试试这个:

let controller = ViewController()