ios - 未定义的方法 `initWithNibName'

Question

我刚刚开始使用 RubyMotion 学习 iOS 开发，我正在这样做 tutorial 。这似乎很容易理解，但现在我在运行 rake 命令时遇到了这个错误:

ColorController.rb:7:in `initWithColor:': undefined method `initWithNibName' for #<ColorController:0x9b4f470> (NoMethodError)
    from SearchController.rb:46:in `open_color:'
    from Color.rb:35:in `block in find:'
    from query.rb:358:in `call_delegator_with_response'
    from query.rb:128:in `connectionDidFinishLoading:'

我到了教程页面上发现 WHEW WELL THAT IS A TON OF CODE NOW ISN'T IT. 的部分，但我被困在那里。目前我的代码如下所示:

# app_delegate.rb
class AppDelegate
  def application(application, didFinishLaunchingWithOptions:launchOptions)
    @window = UIWindow.alloc.initWithFrame(UIScreen.mainScreen.bounds)

    @search_controller = SearchController.alloc.initWithNibName(nil, bundle: nil)
    @navigation_controller = UINavigationController.alloc.initWithRootViewController(@search_controller)

    @window.rootViewController = @navigation_controller
    @window.makeKeyAndVisible
    true
  end
end

# ColorController.rb
class ColorController < UIViewController
  attr_accessor :color
  def initWithColor(color)
    initWithNibName(nil, bunlde: nil)
    self.color = color
    self
  end
  def viewDidLoad
    super
    self.title = self.color.hex

    @info_container = UIView.alloc.initWithFrame [[0, 0], [self.view.frame.size.width, 110]]
    @info_container.backgroundColor = UIColor.lightGrayColor

    self.view.addSubview @info_container

    @color_view = UIView.alloc.initWithFrame [[10, 10], [90, 90]]
    @color_view.backgroundColor = String.new(self.color.hex).to_color

    self.view.addSubview @color_view

    @color_label = UILabel.alloc.initWithFrame [[110, 30], [0, 0]]
    @color_label.text = self.color.hex
    @color_label.sizeToFit

    self.view.addSubview @color_label

    @text_field = UITextField.alloc.initWithFrame [[110, 60], [100, 26]]
    @text_field.placeholder = "tag"
    @text_field.textAlignment = UITextAlignmentLeft
    @text_field.autocapitalizationType = UITextAutocapitalizationTypeNone
    @text_field.borderStyle = UITextBorderStyleRoundedRect

    self.view.addSubview @text_field

    @add_button = UIButton.buttonWithType(UIButtonTypeRoundedRect)
    @add_button.setTitle("Add", forState: UIControlStateNormal)
    @add_button.setTitle("Adding", forState: UIControlStateDisabled)
    @add_button.setTitleColor(UIColor.lightGrayColor, forState: UIControlStateDisabled)
    @add_button.sizeToFit
    @add_button.frame = [[@text_field.frame.origin.x + @text_field.frame.size.width + 10, @text_field.frame.origin.y], @add_button.frame.size]

    self.view.addSubview(@add_button)

    table_frame = [[0, @info_container.frame.size.height], [self.view.bounds.size.width, self.view.bounds.size.height - @info_container.frame.size.height - self.navigationController.navigationBar.frame.size.height]]
    @table_view = UITableView.alloc.initWithFrame(table_frame, style: UITableViewStylePlain)

    self.view.addSubview(@table_view)

  end
end

# SearchController.rb
class SearchController < UIViewController
def viewDidLoad
  super
  self.title = "Search"
  self.view.backgroundColor = UIColor.whiteColor

  @text_field = UITextField.alloc.initWithFrame [[10, 10], [self.view.frame.size.width - 20, 30]]
  @text_field.placeholder = "#abcabc"
  @text_field.textAlignment = UITextAlignmentLeft
  @text_field.autocapitalizationType = UITextAutocapitalizationTypeNone
  @text_field.borderStyle = UITextBorderStyleRoundedRect
  @text_field.center = CGPointMake(self.view.frame.size.width / 2, self.view.frame.size.height / 2 - 100)

  self.view.addSubview @text_field

  @search_button = UIButton.buttonWithType(UIButtonTypeRoundedRect)
  @search_button.setTitle("Search", forState: UIControlStateNormal)
  @search_button.setTitle("Loading", forState: UIControlStateDisabled)
  @search_button.sizeToFit
  @search_button.center = CGPointMake(self.view.frame.size.width / 2, @text_field.center.y + 40)

  self.view.addSubview @search_button

  @search_button.when(UIControlEventTouchUpInside) do
    @search_button.enabled = false
    @text_field.enabled = false

    hex = @text_field.text
    hex = hex[1..-1] if hex[0] == "#"

    Color.find(hex) do |color|
      if color.nil?
        @search_button.setTitle("None :(", forState: UIControlStateNormal)
      else
        @search_button.setTitle("Search", forState: UIControlStateNormal)
        self.open_color(color)
      end
      @search_button.enabled = true
      @text_field.enabled = true
    end

  end

end
def open_color(color)
  self.navigationController.pushViewController(ColorController.alloc.initWithColor(color), animated: true)
end
end

我还有另外两个模型，我确信它们不相关，除非您要运行代码。

谁能告诉我我该怎么办？我意识到我正在尝试调用 initWithNibName 方法，该方法未在我的类中定义，但这就是教程所做的，所以我认为它是正确的。我需要在 ColorController 类上定义它吗？或者我可以用其他方式调用它吗？

Answer 1

您刚刚错误地拼写了“bundle”。

更改:

initWithNibName(nil, bunlde: nil)

到:

initWithNibName(nil, bundle: nil)