Swift实例化UIViewController并在同一文件中添加子视图

Question

我是Swift和本地iOS开发的新手。

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

而不是添加标签，我的代码更改为：

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")
  }

}

然而，在跑步的时候，我得到了一个SIGABRT，我是否正确地采用了这种方式。我看到很多关于添加像这样的控制器的文章 - Adding View controllers as subview in Swift - 但是请你帮我解决上述情况。

以下是我的截图：

Answer 1

试试这个：

{{1}}

Answer 2

您不需要SampleView课程。我认为你因为@IBOutlet weak var spreadsheetView: SpreadsheetView!而感到困惑。您不必遵循此程序。您只需创建一个实例并相应地使用它。

如果您尝试将view SpreadsheetView设为import UIKit import SpreadsheetView class ViewController: UIViewController, SpreadsheetViewDataSource { let spreadsheetView = SpreadsheetView() //have an SpreadsheetView override func viewDidLoad() { super.viewDidLoad() spreadsheetView.dataSource = self self.view = spreadsheetView //set your controller's container view as that spreadsheetView } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() } 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 } } ，请按以下方式使用：

@IBOutlet

编辑：不同的方法

如果您仍想使用change方法，请参阅下图并按照步骤（1-2-3-4）进行操作