如何在 macOS 下的非基于文档的应用程序中添加选项卡? [英] How to add Tabs in a non-document-based app under macOS?

问题描述

我喜欢使用 Xcode 8 在 Swift 3 中构建一个应用程序，它应该启用 Apple 选项卡栏.它不是基于文档的.我了解到here，如果我可以启用这些标签覆盖方法 @IBAction func newWindowForTab(_ sender: Any?) 例如在窗口控制器中.为了测试这一点，我使用故事板在 Xcode 中创建了一个新项目，添加了 NSWindowController 的子类并将其分配到故事板中.然后我实现了

I like to build an app in Swift 3 with Xcode 8 and it should enable the Apple tab bar. It is not document-based. I learned here, that the tabs can be enabled if I override the method @IBAction func newWindowForTab(_ sender: Any?) for example in the window controller. To test this, I created a new project in Xcode using storyboard, added a subclass of NSWindowController and assigned it in the storyboard. I then implemented

@IBAction override func newWindowForTab(_ sender: Any?) {}

在构建应用程序时会出现标签栏.重建后，我注意到+"按钮仅在应用程序在构建之前关闭时标签栏不可见时才会出现.那是一个错误吗?如何添加新标签?

and the tab bar appears when the app is build. Once rebuild, I noticed that the "+"-button only appears if the tab bar was not visible when the app is closed prior to build. Is that a bug? How would I add new tabs?

推荐答案

好的，这里有新文件，

应用委托

import Cocoa

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {

func applicationDidFinishLaunching(_ aNotification: Notification) {
    // Insert code here to initialize your application
}

func applicationWillTerminate(_ aNotification: Notification) {
    // Insert code here to tear down your application
}

func applicationShouldTerminateAfterLastWindowClosed(_ sender: NSApplication) -> Bool {
    return true
}

@IBAction func newWindowForTab(_ sender: Any?){
} // without this the + button doesn't show from start

}

视图控制器

import Cocoa

class ViewController: NSViewController {

override func viewDidLoad() {
    super.viewDidLoad()

    // Do any additional setup after loading the view.
}

override var representedObject: Any? {
    didSet {
    // Update the view, if already loaded.
    }
}
}

和窗口控制器

import Cocoa

class WindowController: NSWindowController {

var subview: WindowController?

override func windowDidLoad() {
    super.windowDidLoad()
    // Implement this method to handle any initialization after your window controller's window has been loaded from its nib file.
}

@IBAction override func newWindowForTab(_ sender: Any?) {

    let story = self.storyboard
    let windowVC: WindowController = story?.instantiateInitialController() as! WindowController

    self.window?.addTabbedWindow(windowVC.window!, ordered: .above)
    self.subview = windowVC

    windowVC.window?.orderFront(self.window)
    windowVC.window?.makeKey()
}

}

您必须添加菜单项并将其连接到菜单视图中的 FirstResponder 到 newWindowForTab:操作，分配键，说 cmd+t 才能工作，这个例子只是从 + 按钮和窗口菜单选项添加选项卡，移动选项卡到新窗口"和合并所有窗口".您可以将标签拖出并放回，水平移动标签.看起来有效.

you have to add menu item and connect it to FirstResponder in menu view to newWindowForTab: action, assign key, say cmd+t to work, this example as is just adds tab from + button and window menu options work, "move tab to new window" and "merge all windows". You can drag tab out and drop back , move tabs horizontally. Look like it works.

使用 Xcode 版本 8.2 beta (8C30a) 完成

done with Xcode Version 8.2 beta (8C30a)

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