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Programming language: Swift
Tags: Localization    
Latest version: v1.1.4

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README

Crowdin iOS SDK

Crowdin iOS SDK delivers all new translations from Crowdin project to the application immediately. So there is no need to update this application via App Store to get the new version with the localization.

The SDK provides:

  • Over-The-Air Content Delivery – the localized content can be sent to the application from the project whenever needed.
  • Real-Time Preview – all the translations that are done in the Editor can be shown in your version of the application in real-time. View the translations already made and the ones you're currently typing in.
  • Screenshots – all the screenshots made in the application may be automatically sent to your Crowdin project with tagged source strings.

Status

Cocoapods Cocoapods platforms GitHub Release Date GitHub contributors GitHub issues GitHub License

Azure DevOps builds (branch) codecov Azure DevOps tests (branch)

Table of Contents

Requirements

  • Xcode 10.2
  • Swift 4.2
  • iOS 9.0

Dependencies

  • Starscream - Websockets in swift for iOS and OSX.

Installation

  1. Cocoapods

To install Crowdin iOS SDK via cocoapods, make sure you have cocoapods installed locally. If not, install it with following command: sudo gem install cocoapods.

Detailed instruction can be found here.

Add the following line to your Podfile:

   pod 'CrowdinSDK'
  1. Cocoapods spec repository
   target 'MyApp' do
     pod 'CrowdinSDK'
   end
  1. Working with App Extensions

Upon pod install result, you might experience some building issues in case your application embeds target extensions.

Example error:

> 'shared' (Swift) / 'sharedApplication' (Objective-C) is unavailable: not available on iOS (App Extension) - Use view controller based solutions where appropriate instead.

In this scenario you'll need to add a `post_install` script to your Podfile

```swift
post_install do |installer|

  extension_api_exclude_pods = ['CrowdinSDK']

  installer.pods_project.targets.each do |target|

      # the Pods contained into the `extension_api_exclude_pods` array
      # have to get the value (APPLICATION_EXTENSION_API_ONLY) set to NO
      # in order to work with service extensions

      if extension_api_exclude_pods.include? target.name
        target.build_configurations.each do |config|
          config.build_settings['APPLICATION_EXTENSION_API_ONLY'] = 'NO'
        end
      end
    end
end
```

Then run `pod install` again to fix it.

After you've added CrowdinSDK to your Podfile, run pod install in your project directory, open App.xcworkspace and build it.

Example Project

To discover how iOS SDK is integrated into real project see the Example project. You can set up this project for yourself, run, and test.

To run the example project, first clone the repo and run pod install from the Example directory. For more about Example project structure visit the Wiki article.

Setup

To configure iOS SDK integration you need to:

  • Upload your strings/stringsdict localization files to Crowdin. If you have ready translations, you can also upload them.
  • Set up Distribution in Crowdin.
  • Set up SDK and enable Over-The-Air Content Delivery feature.

Distribution is a CDN vault that mirrors the translated content of your project and is required for integration with iOS app.

To manage distributions open the needed project and go to Over-The-Air Content Delivery. You can create as many distributions as you need and choose different files for each. You’ll need to click the Release button next to the necessary distribution every time you want to send new translations to the app.

  1. Enable Over-The-Air Content Delivery in your Crowdin project so that application can pull translations from CDN vault.

  2. In order to start using CrowdinSDK you need to initialize it in AppDelegate or in Info.plist


Notes:

  • The CDN feature does not update the localization files. if you want to add new translations to the localization files you need to do it yourself.
  • Once SDK receives the translations, it's stored on the device as application files for further sessions to minimize requests the next time the app starts. Storage time can be configured using intervalUpdatesEnabled option.
  • CDN caches all the translation in release for up to 15 minutes and even when new translations are released in Crowdin, CDN may return it with a delay.

Setup with AppDelegate

Open AppDelegate.swift file and add:

   import CrowdinSDK

In application method add:

let crowdinProviderConfig = CrowdinProviderConfig(hashString: "{your_distribution_hash}",
  sourceLanguage: "{source_language}")

CrowdinSDK.startWithConfig(crowdinSDKConfig, completion: {
    // SDK is ready to use, put code to change language, etc. here
})
Config option Description Example
hashString Distribution Hash hashString: "7a0c1ee2622bc85a4030297uo3b"
sourceLanguage Source language code in your Crowdin project. ISO 639-1 sourceLanguage: "en"

Objective-C

In AppDelegate.m add:

@import CrowdinSDK

or

#import<CrowdinSDK/CrowdinSDK.h>

In application method add:

CrowdinProviderConfig *crowdinProviderConfig = [[CrowdinProviderConfig alloc] initWithHashString:@"" sourceLanguage:@""];
CrowdinSDKConfig *config = [[[CrowdinSDKConfig config] withCrowdinProviderConfig:crowdinProviderConfig]];

[CrowdinSDK startWithConfig:config completion:^{
    // SDK is ready to use, put code to change language, etc. here
}];

If you have pure Objective-C project, then you will need to do some additional steps:

Add the following code to your Library Search Paths:

$(TOOLCHAIN_DIR)/usr/lib/swift/$(PLATFORM_NAME)

Add use_frameworks! to your Podfile.

Setup with Info.plist

Open Info.plist file and add:

CrowdinDistributionHash - Crowdin CDN hash value for current project (String value).

CrowdinSourceLanguage - Source language code (ISO 639-1) for current project on crowdin server (String value).

In AppDelegate you should call start method: CrowdinSDK.start() for Swift, and [CrowdinSDK start] for Objective-C.

Note! Using this setup method you will unable to set up additional Screenshots and Real-Time Preview project features.

Advanced Features

Real-Time Preview

All the translations that are done in the Editor can be shown in the application in real-time. View the translations already made and the ones you're currently typing in.

[](#)

Add the code below to your Podfile:

use_frameworks!
target 'your-app' do
  pod 'CrowdinSDK'
  pod 'CrowdinSDK/LoginFeature'
  pod 'CrowdinSDK/RealtimeUpdate'
  pod 'CrowdinSDK/Settings' // Optional. To add 'settings' floating button
end

Open AppDelegate.swift file and in application method add:

let crowdinProviderConfig = CrowdinProviderConfig(hashString: "{your_distribution_hash}",
    sourceLanguage: "{source_language}")

var loginConfig: CrowdinLoginConfig
do {
    loginConfig = try CrowdinLoginConfig(clientId: "{client_id}",
        clientSecret: "{client_secret}",
        scope: "project.translation",
        redirectURI: "{redirectURI}",
        organizationName: "{organization_name}")
} catch {
    print(error)
    // CrowdinLoginConfig initialization error handling, typically for empty values and for wrong redirect URI value.
}

let crowdinSDKConfig = CrowdinSDKConfig.config().with(crowdinProviderConfig: crowdinProviderConfig)
    .with(loginConfig: loginConfig)
    .with(settingsEnabled: true)
    .with(realtimeUpdatesEnabled: true)

CrowdinSDK.startWithConfig(crowdinSDKConfig, completion: {
    // SDK is ready to use, put code to change language, etc. here
})
Config option Description Example
hashString Distribution Hash hashString: "7a0c1ee2622bc85a4030297uo3b"
sourceLanguage Source language code in your Crowdin project. ISO 639-1 sourceLanguage: "en"
clientId, clientSecret Crowdin OAuth Client ID and Client Secret clientId: "gpY2yTbCVGEelrcx3TYB", clientSecret: "Xz95t0ASVgbvKaZbFB4SMHQzdUl1MSgSTabEDx9T"
scope Define the access scope for personal tokens scope: "project.translation"
redirectURI A custom URL for your app. Read more in the article. It's an optional value. You should set it in case you want to use a specific URL scheme. In case you set a scheme which is not supported by your application init method will throw an exception. redirectURI: "crowdintest://"
organizationName An Organization domain name (for Crowdin Enterprise users only) organizationName: "mycompany"
settingsEnabled Enable floating settings view with a list of all active features and its statuses settingsEnabled: true
realtimeUpdatesEnabled Enable Real-Time Preview feature realtimeUpdatesEnabled: true

Screenshots

Enable if you want all the screenshots made in the application to be automatically sent to your Crowdin project with tagged strings. This will provide additional context for translators.

[](#)

Add the code below to your Podfile:

use_frameworks!
target 'your-app' do
  pod 'CrowdinSDK'
  pod 'CrowdinSDK/LoginFeature'
  pod 'CrowdinSDK/Screenshots'
  pod 'CrowdinSDK/Settings' // Optional. To add 'settings' button
end

Open AppDelegate.swift file and in application method add:

let crowdinProviderConfig = CrowdinProviderConfig(hashString: "{your_distribution_hash}",
    sourceLanguage: "{source_language}")

var loginConfig: CrowdinLoginConfig
do {
    loginConfig = try CrowdinLoginConfig(clientId: "{client_id}",
        clientSecret: "{client_secret}",
        scope: "project.screenshot",
        redirectURI: "{redirectURI}",
        organizationName: "{organization_name}")
} catch {
    print(error)
    // CrowdinLoginConfig initialization error handling, typically for empty values and for wrong redirect URI value.
}

let crowdinSDKConfig = CrowdinSDKConfig.config().with(crowdinProviderConfig: crowdinProviderConfig)
    .with(screenshotsEnabled: true)
    .with(loginConfig: loginConfig)
    .with(settingsEnabled: true)

CrowdinSDK.startWithConfig(crowdinSDKConfig, completion: {
    // SDK is ready to use, put code to change language, etc. here
})
Config option Description Example
hashString Distribution Hash hashString: "7a0c1ee2622bc85a4030297uo3b"
sourceLanguage Source language code in your Crowdin project. ISO 639-1 sourceLanguage: "en"
clientId, clientSecret Crowdin OAuth Client ID and Client Secret clientId: "gpY2yTbCVGEelrcx3TYB", clientSecret: "Xz95t0ASVgbvKaZbFB4SMHQzdUl1MSgSTabEDx9T"
scope Define the access scope for personal tokens scope: "project.screenshot"
redirectURI A custom URL for your app. Read more in the article. It's an optional value. You should set it in case you want to use a specific URL scheme. In case you set a scheme which is not supported by your application init method will throw an exception. redirectURI: "crowdintest://"
organizationName An Organization domain name (for Crowdin Enterprise users only) organizationName: "mycompany"
settingsEnabled Enable floating settings view with a list of all active features and its statuses settingsEnabled: true
screenshotsEnabled Enable floating button to send screenshots to Crowdin screenshotsEnabled: true

Notes

  1. Configuring translation update interval

By default SDK is looking for new translation once per application load every 15 minutes. You can update translations in application every defined time interval. To enable this feature add pod CrowdinSDK/IntervalUpdate to your pod file:

   pod 'CrowdinSDK/IntervalUpdate'

Then enable this option in CrowdinSDKConfig:

   ...
   .with(intervalUpdatesEnabled: true, interval: {interval})
   ...
`interval` - defines translations update time interval in seconds. Minimum allowed interval is 15 minutes.
  1. R-Swift applications are also supported by Crowdin iOS SDK.

  2. To change SDK target language on the fly regardless of device locale use the following method:


CrowdinSDK.enableSDKLocalization(true, localization: “<language_code>”)

  1. Currently, Custom Languages, Dialects, and Language Mapping are not supported for iOS SDK.

File Export Patterns

You can set file export patterns and check existing ones using File Settings. The following placeholders are supported for iOS integration:

Name Description %language% Language name (e.g. Ukrainian) %locale% Locale (e.g. uk-UA) %locale_with_underscore% Locale (e.g. uk_UA) %osx_code% OS X locale identifier used to name ".lproj" directories %osx_locale% OS X locale used to name translation resources (e.g. uk, zh-Hans, zh_HK)

Contributing

If you want to contribute please read the Contributing guidelines.

Seeking Assistance

If you find any problems or would like to suggest a feature, please feel free to file an issue on Github at Issues Page.

Need help working with Crowdin iOS SDK or have any questions? Contact Customer Success Service.

Security

Crowdin iOS SDK CDN feature is built with security in mind, which means minimal access possible from the end-user is required. When you decide to use Crowdin iOS SDK, please make sure you’ve made the following information accessible to your end-users.

  • We use the advantages of Amazon Web Services (AWS) for our computing infrastructure. AWS has ISO 27001 certification and has completed multiple SSAE 16 audits. All the translations are stored at AWS servers.
  • When you use Crowdin iOS SDK CDN – translations are uploaded to Amazon CloudFront to be delivered to the app and speed up the download. Keep in mind that your users download translations without any additional authentication.
  • We use encryption to keep your data private while in transit.
  • We do not store any Personally Identifiable Information (PII) about the end-user, but you can decide to develop the opt-out option inside your application to make sure your users have full control.
  • The Automatic Screenshots and Real-Time Preview features are supposed to be used by the development team and translators team. Those features should not be compiled to the production version of your app. Therefore, should not affect end-users privacy in any way.

Authors

License

The Crowdin iOS SDK is licensed under the MIT License. See the LICENSE file distributed with this work for additional information regarding copyright ownership.

Except as contained in the LICENSE file, the name(s) of the above copyright holders shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization.


*Note that all licence references and agreements mentioned in the CrowdinSDK README section above are relevant to that project's source code only.