Slides from the Women Hacking Glass session. The slides describe how to use the Google Translate API within a Glass app.

1. Translate on
Glass
Trish Whetzel

2. Outline
● Project Workflow
● Google Translate API
● Glassware
● Build App

3. Project Workflow
● Launch app
● Speak word of phrase to translate
● A card is returned with the translation

8. Google Translate API*
● API or Application programming interface
○ Set of routines, protocols, tools, or remote calls for
building software applications.
○ Google Translate API lets websites and programs
integrate with Google Translate programmatically
● REST Web service
https://developers.google.com/translate/
*paid service

9. REST Web services
● Accessed via HTTP
● Each unique URL is a representation of
some object
● Operations include PUT, GET, POST,
DELETE

10. Translate API operations
Operation Description REST HTTP mapping
translate Translates source text from source
language to target language
GET
languages List the source and target languages
supported by the translate methods
GET
detect Detect language of source text GET

11. Translate Text
GET https://www.googleapis.com/language/translate/v2?key=INSERT-YOUR-KEY&
source=en&target=de&q=Hello%20world
Required Parameters:
API Key {key} - register on Google Console for an API Key
Source text string {q} - text to translate
Target language {target} - language you want to translate into
https://developers.google.com/translate/v2/using_rest#Translate

12. Response
200 OK
{
"data": {
"translations": [
{
"translatedText": "hola mundo"
}
]
}
}

13. Glassware
● Glass Development Kit (GDK)
○ Add-on to the Android SDK
○ Runs directly on Glass
● Mirror API
○ Web-based services that interact with Google Glass
○ Functionality provided over a cloud-based API and
does not require running code on Glass
https://developers.google.com/glass/

14. Other Helpful Resources
● Coding questions
○ Stack Overflow http://stackoverflow.com/
○ G+ Glass Developers group https://plus.google.
com/u/0/communities/105104639432156353586
● Google Glass Sample Code
○ https://github.com/googleglass
● Report Bugs
○ https://code.google.com/p/google-glass-api/

15. Let’s Get Started!
● We’ll extend the ApiDemo sample project
developed by the Google Glass team
○ https://github.com/googleglass/gdk-apidemo-sample
● Google Developer documentation for Glass
○ https://developers.google.com/glass

16. Future Work
● Add methods to translate TO and FROM any
language supported by the Google Translate
API
● Format Layout to display speech input and
translated text and image to represent the
country of each