iOS 15中Swift和SwiftUI的使用情况

文 | 局长

出品 | OSC开源社区（ID：oschina2013）

• Books

• Maps

• Notes

• Weather

• Tips

• Music

• Podcasts

• FaceTime? (InCallService)

• AppSettings?

• Translate

• Shortcuts

• Phone

• AirPods Connect Pop-up? (SharingViewService)

• Lock Screen? (SleepLockScreen)

/Applications/AppSettings.app/AppSettings
/Applications/AppStore.app/PlugIns/AppStoreWidgetsExtension.appex/AppStoreWidgetsExtension
/Applications/FamilyControlsAuthenticationUI.app/FamilyControlsAuthenticationUI
/Applications/FindMy.app/PlugIns/FindMyWidgetIntentsItems.appex/FindMyWidgetIntentsItems
/Applications/FindMy.app/PlugIns/FindMyWidgetIntentsPeople.appex/FindMyWidgetIntentsPeople
/Applications/FindMy.app/PlugIns/FindMyWidgetItems.appex/FindMyWidgetItems
/Applications/FindMy.app/PlugIns/FindMyWidgetPeople.appex/FindMyWidgetPeople
/Applications/FTMInternal-4.app/FTMInternal-4
/Applications/GameCenterWidgets.app/PlugIns/GCWidgets.appex/GCWidgets
/Applications/InCallService.app/InCallService
/Applications/PeopleViewService.app/PlugIns/PeopleWidget_iOSExtension.appex/PeopleWidget_iOSExtension
/Applications/SleepWidgetContainer.app/PlugIns/SleepWidgetExtension.appex/SleepWidgetExtension
/private/var/staged_system_apps/Books.app/Books
/private/var/staged_system_apps/Maps.app/Maps
/private/var/staged_system_apps/MobileMail.app/PlugIns/MailWidgetExtension.appex/MailWidgetExtension
/private/var/staged_system_apps/MobileNotes.app/MobileNotes
/private/var/staged_system_apps/MobileNotes.app/PlugIns/com.apple.mobilenotes.SharingExtension.appex/com.apple.mobilenotes.SharingExtension
/private/var/staged_system_apps/Music.app/Frameworks/MusicApplication.framework/MusicApplication
/private/var/staged_system_apps/Podcasts.app/Frameworks/PodcastsStoreUI.framework/PodcastsStoreUI
/private/var/staged_system_apps/Shortcuts.app/PlugIns/QuickLookExtension.appex/QuickLookExtension
/private/var/staged_system_apps/Tips.app/Tips
/private/var/staged_system_apps/Weather.app/Weather
/System/Library/Assistant/UIPlugins/SiriFindMyUIPlugin.siriUIBundle/SiriFindMyUIPlugin
/System/Library/Frameworks/_CoreLocationUI_SwiftUI.framework/_CoreLocationUI_SwiftUI
/System/Library/Frameworks/_MusicKit_SwiftUI.framework/_MusicKit_SwiftUI
/System/Library/Frameworks/FamilyControls.framework/FamilyControls
/System/Library/Frameworks/FamilyControls.framework/PlugIns/ActivityPickerExtension.appex/ActivityPickerExtension
/System/Library/Health/FeedItemPlugins/Heart.healthplugin/Heart
/System/Library/Health/FeedItemPlugins/Highlights.healthplugin/Highlights
/System/Library/Health/FeedItemPlugins/MenstrualCyclesAppPlugin.healthplugin/MenstrualCyclesAppPlugin
/System/Library/Health/FeedItemPlugins/SleepHealthAppPlugin.healthplugin/SleepHealthAppPlugin
/System/Library/Health/FeedItemPlugins/Summaries.healthplugin/Summaries
/System/Library/PreferenceBundles/BatteryUsageUI.bundle/BatteryUsageUI
/System/Library/PreferenceBundles/CoreRoutineSettings.bundle/CoreRoutineSettings
/System/Library/PreferenceBundles/FocusSettings.bundle/FocusSettings
/System/Library/PrivateFrameworks/AccessibilitySharedUISupport.framework/AccessibilitySharedUISupport
/System/Library/PrivateFrameworks/ActionKitUI.framework/ActionKitUI
/System/Library/PrivateFrameworks/CommandAndControlUI.framework/CommandAndControlUI
/System/Library/PrivateFrameworks/CoreChartSwift.framework/CoreChartSwift
/System/Library/PrivateFrameworks/CoreSuggestionsUI.framework/CoreSuggestionsUI
/System/Library/PrivateFrameworks/FocusSettingsUI.framework/FocusSettingsUI
/System/Library/PrivateFrameworks/FocusUI.framework/FocusUI
/System/Library/PrivateFrameworks/HealthExperienceUI.framework/HealthExperienceUI
/System/Library/PrivateFrameworks/HealthRecordsUI.framework/HealthRecordsUI
/System/Library/PrivateFrameworks/HealthVisualization.framework/HealthVisualization
/System/Library/PrivateFrameworks/HearingUI.framework/HearingUI
/System/Library/PrivateFrameworks/MediaFoundation.framework/MediaFoundation
/System/Library/PrivateFrameworks/MessagesSupport.framework/MessagesSupport
/System/Library/PrivateFrameworks/MLKit.framework/MLKit
/System/Library/PrivateFrameworks/MLKit.framework/PlugIns/com.apple.MLKit.MLModelPreview.appex/com.apple.MLKit.MLModelPreview
/System/Library/PrivateFrameworks/MLKit.framework/PlugIns/com.apple.MLKit.MLPackagePreview.appex/com.apple.MLKit.MLPackagePreview
/System/Library/PrivateFrameworks/NotesUI.framework/NotesUI
/System/Library/PrivateFrameworks/PaymentUI.framework/PaymentUI
/System/Library/PrivateFrameworks/PeopleUI.framework/PeopleUI
/System/Library/PrivateFrameworks/PreviewsInjection.framework/PreviewsInjection
/System/Library/PrivateFrameworks/PreviewsMessaging.framework/PreviewsMessaging
/System/Library/PrivateFrameworks/ScreenTimeUICore.framework/ScreenTimeUICore
/System/Library/PrivateFrameworks/SleepHealthUI.framework/SleepHealthUI
/System/Library/PrivateFrameworks/SleepWidgetUI.framework/SleepWidgetUI
/System/Library/PrivateFrameworks/SnippetUI.framework/SnippetUI
/System/Library/PrivateFrameworks/TipKit.framework/TipKit
/System/Library/PrivateFrameworks/TranslationUI.framework/TranslationUI
/System/Library/PrivateFrameworks/TranslationUIServices.framework/PlugIns/TranslationUIService.appex/TranslationUIService
/System/Library/PrivateFrameworks/VideosUI.framework/VideosUI
/System/Library/PrivateFrameworks/WeatherUI.framework/WeatherUI
/System/Library/PrivateFrameworks/WorkflowUI.framework/WorkflowUI
/System/Library/Snippets/UIPlugins/AudioUIPlugin.bundle/AudioUIPlugin
/System/Library/Snippets/UIPlugins/SiriVideoUIPlugin.bundle/SiriVideoUIPlugin
/System/Library/Snippets/UIPlugins/SystemPlugin.bundle/SystemPlugin
/usr/lib/swift/libswiftExtensionKit.dylib
/usr/libexec/proximitycontrold

• 89% 使用 Objective-C

• 17% 使用 C++

• 13% 使用 Swift

• 8% 完全用 C 编写

• 2% 使用 SwiftUI

• Objective-C 仍然是 iOS 的核心

• Apple 对 Swift 的使用比以往任何时候都更快。去年 Swift 的代码量比例超过了 C，今年则越来越接近 C++

• SwiftUI 去年几乎没有引起人们的注意，但今年 Apple 似乎更广泛地采用了它，即使是在旗舰应用程序中

• C++ 和 C 仍然扮演着重要的角色。这些语言通常由与音频、视频、电话、Web 和其他底层框架相关的二进制文件使用

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