SystemStrings

A Swift package that exposes localized strings from iOS system frameworks for reuse.

Features

No dependencies

SystemStrings does not require any non-system dependencies

Stand-alone files

Only interested in UIKit strings? Simply copy UIKitStrings.swift directly into your project and profit. Every file in SystemStrings is stand-alone and can be used without requiring any of the other files in the package.

Discoverable strings

Existing system strings are easy to find because keys are translated into identifiers by means of human-readable unicode characters

Caveats

SystemStrings loads translations from bundles at runtime. This requires each used bundle to be linked and loaded which comes with a certain perfomance penalty.

The strings in system bundles can change between iOS versions. The SystemStrings code was generated using the latest available version of iOS at the time. There is no guarantee that all strings will be available on past or future iOS versions though.

Available Strings

Below is a list of the supported frameworks and their associated number of localized strings.

Accounts                20
ARKit                   71
AudioToolbox            291
AVFoundation            195
AVKit                   38
BusinessChat            34
ClassKit                37
CloudKit                233
Contacts                376
ContactsUI              543
CoreAudioKit            46
CoreBluetooth           4
CoreData                38
CoreImage               839
CoreLocation            33
CoreMIDI                2
CoreSpotlight           496
CoreTelephony           64
CryptoTokenKit          1
EventKit                51
EventKitUI              577
ExposureNotification    8
ExternalAccessory       1
FileProvider            100
FileProviderUI          27
Foundation              2114
HealthKit               948
HomeKit                 389
iAd                     27
IdentityLookupUI        6
ImageCaptureCore        39
Intents                 94
IntentsUI               5
LinkPresentation        89
MapKit                  360
MediaPlayer             138
MessageUI               166
MultipeerConnectivity   17
NetworkExtension        133
PassKit                 3327
PDFKit                  108
PencilKit               106
PhotosUI                669
QuickLook               49
ReplayKit               106
SafariServices          677
Social                  156
StoreKit                17
UIKit                   421
VideoSubscriberAccount  181
VisionKit               107
WatchConnectivity       39

Contributing

To regenerate the code run swift package generate-xcodeproj and then execute the tests from Xcode. Alternatively you can also run the tests from the command line, e.g. via

xcodebuild test -scheme "SystemStrings-Package" -destination "name=iPhone 11"

License

SystemStrings is licensed under the Apache License, Version 2.0.