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sindresorhus/Preferences: ⚙ Add a settings window to your macOS app in minutes

原作者: [db:作者] 来自: 网络 收藏 邀请

开源软件名称(OpenSource Name):

sindresorhus/Preferences

开源软件地址(OpenSource Url):

https://github.com/sindresorhus/Preferences

开源编程语言(OpenSource Language):

Swift 98.7%

开源软件介绍(OpenSource Introduction):

Preferences

Add a settings window to your macOS app in minutes

Just pass in some view controllers and this package will take care of the rest. Built-in SwiftUI support.

This package is compatible with macOS 13 and automatically uses Settings instead of Preferences in the window title on macOS 13 and later.

Requirements

macOS 10.13 and later.

Install

Add https://github.com/sindresorhus/Preferences in the “Swift Package Manager” tab in Xcode.

Usage

Run the Example Xcode project to try a live example (requires macOS 11 or later).

First, create some settings pane identifiers:

import Preferences

extension Settings.PaneIdentifier {
	static let general = Self("general")
	static let advanced = Self("advanced")
}

Second, create a couple of view controllers for the settings panes you want. The only difference from implementing a normal view controller is that you have to add the SettingsPane protocol and implement the preferencePaneIdentifier, toolbarItemTitle, and toolbarItemIcon properties, as shown below. You can leave out toolbarItemIcon if you're using the .segmentedControl style.

GeneralSettingsViewController.swift

import Cocoa
import Preferences

final class GeneralSettingsViewController: NSViewController, SettingsPane {
	let preferencePaneIdentifier = Settings.PaneIdentifier.general
	let preferencePaneTitle = "General"
	let toolbarItemIcon = NSImage(systemSymbolName: "gearshape", accessibilityDescription: "General settings")!

	override var nibName: NSNib.Name? { "GeneralSettingsViewController" }

	override func viewDidLoad() {
		super.viewDidLoad()

		// Setup stuff here
	}
}

Note: If you need to support macOS versions older than macOS 11, you have to add a fallback for the toolbarItemIcon.

AdvancedSettingsViewController.swift

import Cocoa
import Preferences

final class AdvancedSettingsViewController: NSViewController, SettingsPane {
	let preferencePaneIdentifier = Settings.PaneIdentifier.advanced
	let preferencePaneTitle = "Advanced"
	let toolbarItemIcon = NSImage(systemSymbolName: "gearshape.2", accessibilityDescription: "Advanced settings")!

	override var nibName: NSNib.Name? { "AdvancedSettingsViewController" }

	override func viewDidLoad() {
		super.viewDidLoad()

		// Setup stuff here
	}
}

If you need to respond actions indirectly, the settings window controller will forward responder chain actions to the active pane if it responds to that selector.

final class AdvancedSettingsViewController: NSViewController, SettingsPane {
	@IBOutlet private var fontLabel: NSTextField!
	private var selectedFont = NSFont.systemFont(ofSize: 14)

	@IBAction private func changeFont(_ sender: NSFontManager) {
		font = sender.convert(font)
	}
}

In the AppDelegate, initialize a new SettingsWindowController and pass it the view controllers. Then add an action outlet for the Settings… menu item to show the settings window.

AppDelegate.swift

import Cocoa
import Preferences

@main
final class AppDelegate: NSObject, NSApplicationDelegate {
	@IBOutlet private var window: NSWindow!

	private lazy var settingsWindowController = SettingsWindowController(
		preferencePanes: [
			GeneralSettingsViewController(),
			AdvancedSettingsViewController()
		]
	)

	func applicationDidFinishLaunching(_ notification: Notification) {}

	@IBAction
	func settingsMenuItemActionHandler(_ sender: NSMenuItem) {
		settingsWindowController.show()
	}
}

Settings Tab Styles

When you create the SettingsWindowController, you can choose between the NSToolbarItem-based style (default) and the NSSegmentedControl:

//
private lazy var settingsWindowController = SettingsWindowController(
	preferencePanes: [
		GeneralSettingsViewController(),
		AdvancedSettingsViewController()
	],
	style: .segmentedControl
)
//

.toolbarItem style:

NSToolbarItem based (default)

.segmentedControl style:

NSSegmentedControl based

API

public enum Settings {}

extension Settings {
	public enum Style {
		case toolbarItems
		case segmentedControl
	}
}

public protocol SettingsPane: NSViewController {
	var preferencePaneIdentifier: Settings.PaneIdentifier { get }
	var preferencePaneTitle: String { get }
	var toolbarItemIcon: NSImage { get } // Not required when using the .`segmentedControl` style
}

public final class SettingsWindowController: NSWindowController {
	init(
		preferencePanes: [SettingsPane],
		style: Settings.Style = .toolbarItems,
		animated: Bool = true,
		hidesToolbarForSingleItem: Bool = true
	)

	init(
		panes: [SettingsPaneConvertible],
		style: Settings.Style = .toolbarItems,
		animated: Bool = true,
		hidesToolbarForSingleItem: Bool = true
	)

	func show(preferencePane: Settings.PaneIdentifier? = nil)
}

As with any NSWindowController, call NSWindowController#close() to close the settings window.

Recommendation

The easiest way to create the user interface within each pane is to use a NSGridView in Interface Builder. See the example project in this repo for a demo.

SwiftUI support

If your deployment target is macOS 10.15 or later, you can use the bundled SwiftUI components to create panes. Create a Settings.Pane (instead of SettingsPane when using AppKit) using your custom view and necessary toolbar information.

Run the Example target in the Xcode project in this repo to see a real-world example. The Accounts tab is in SwiftUI.

There are also some bundled convenience SwiftUI components, like Settings.Container and Settings.Section to automatically achieve similar alignment to AppKit's NSGridView. And also a .preferenceDescription() view modifier to style text as a setting description.

Tip: The Defaults package makes it very easy to persist the settings.

struct CustomPane: View {
	var body: some View {
		Settings.Container(contentWidth: 450.0) {
			Settings.Section(title: "Section Title") {
				// Some view.
			}
			Settings.Section(label: {
				// Custom label aligned on the right side.
			}) {
				// Some view.
			}
			
		}
	}
}

Then in the AppDelegate, initialize a new SettingsWindowController and pass it the pane views.

//

private lazy var settingsWindowController = SettingsWindowController(
	panes: [
		Pane(
			 identifier: ,
			 title: ,
			 toolbarIcon: NSImage()
		) {
			CustomPane()
		},
		Pane(
			 identifier: ,
			 title: ,
			 toolbarIcon: NSImage()
		) {
			AnotherCustomPane()
		}
	]
)

//

If you want to use SwiftUI panes alongside standard AppKit NSViewController's, instead wrap the pane views into Settings.PaneHostingController and pass them to SettingsWindowController as you would with standard panes.

let CustomViewSettingsPaneViewController: () -> SettingsPane = {
	let paneView = Settings.Pane(
		identifier: ,
		title: ,
		toolbarIcon: NSImage()
	) {
		// Your custom view (and modifiers if needed).
		CustomPane()
		//  .environmentObject(someSettingsManager)
	}

	return Settings.PaneHostingController(paneView: paneView)
}

//

private lazy var settingsWindowController = SettingsWindowController(
	preferencePanes: [
		GeneralSettingsViewController(),
		AdvancedSettingsViewController(),
		CustomViewSettingsPaneViewController()
	],
	style: .segmentedControl
)

//

Full example here..

Backwards compatibility

macOS 11 and later supports SF Symbols which can be conveniently used for the toolbar icons. If you need to support older macOS versions, you have to add a fallback. Apple recommends using the same icons even for older systems. The best way to achieve this is to export the relevant SF Symbols icons to images and add them to your Asset Catalog.

Known issues

The settings window doesn't show

This can happen when you are not using auto-layout or have not set a size for the view controller. You can fix this by either using auto-layout or setting an explicit size, for example, preferredContentSize in viewDidLoad(). We intend to fix this.

There are no animations on macOS 10.13 and earlier

The animated parameter of SettingsWindowController.init has no effect on macOS 10.13 or earlier as those versions don't support NSViewController.TransitionOptions.crossfade.

FAQ

How can I localize the window title?

The SettingsWindowController adheres to the macOS Human Interface Guidelines and uses this set of rules to determine the window title:

  • Multiple settings panes: Uses the currently selected preferencePaneTitle as the window title. Localize your preferencePaneTitles to get localized window titles.
  • Single settings pane: Sets the window title to APPNAME Settings. The app name is obtained from your app's bundle. You can localize its Info.plist to customize the title. The Settings part is taken from the "Settings…" menu item, see #12. The order of lookup for the app name from your bundle:
    1. CFBundleDisplayName
    2. CFBundleName
    3. CFBundleExecutable
    4. Fall back to "<Unknown App Name>" to show you're missing some settings.

Why should I use this instead of just manually implementing it myself?

It can't be that hard right? Well, turns out it is:

How is it better than MASPreferences?

  • Written in Swift. (No bridging header!)
  • Swifty API using a protocol.
  • Supports segmented control style tabs.
  • SwiftUI support.
  • Fully documented.
  • Adheres to the macOS Human Interface Guidelines.
  • The window title is automatically localized by using the system string.

Related

You might also like Sindre's apps.

Used in these apps

Want to tell the world about your app that is using Preferences? Open a PR!

Maintainers




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