我刚刚开始学习使用 RubyMotion 进行 iOS 开发，并且正在学习本教程。看起来很容易理解，但是现在我遇到了运行rake命令时遇到的这个错误：
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:'
我到达WHEW WELL THAT IS A TON OF CODE NOW ISN'T IT.了教程页面上的部分，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，除非您要运行代码，否则我确信它们不相关。
谁能告诉我我该怎么做？我意识到我正在尝试调用initWithNibName未在我的班级中定义的方法，但这就是教程所做的，所以我认为它是正确的。我需要在ColorController课堂上定义它吗？或者我可以用其他方式调用它吗？