Google Glass is the next generation wearable smart device. This presentation explains some important aspects to be see understood before diving into program for Google Glass. What is the technologies used in it, how to approach as a developer are discussed. When comes to Google GLASS development there are 2 major approaches. 1 st is Native Glass app development and the other one is Glassware development. Take an overall idea about the glassware with the help of the architecture diagram of how it works.

1. GOOGLE
In a programmer's view

2. ANDROID
Google GLASS runs on Android 4.0.4, so
basically an app developed using Android
4.0.4 or greater can be installed in the
GLASS.

3. DEVELOPMENT KIT
There is no GDK(GLASS Development KIT
yet), But as this runs on Android you can
use the traditional Android Development
KIT to develop Native GLASS apps for the
Google GLASS.

4. DEPENDENCY
GLASS does not have many sensors that are
available in a normal phone.
It has WIFI, Bluetooth, Accelerometer and Proximity
Sensor.
So it needed to be paired with a phone to access
those sensors. Which consumes extra battery.
Usable battery time is also less compared to an
Android phone.

5. GLASS PROGRAMMING APPROACHES
Google GLASS Development can be approached in 2 ways
•Native GLASS App(Android)
•GLASS Ware(Server Side)

6. NATIVE GLASS APP DEVELOPMENT
Native GLASS app development is same as developing for
normal android phones.
But there are some things needed to be cared about.
The platform should be Android 4.0.4 or greater.
When developing I’ll advise to develop the app in the
landscape orientation as the glass is in landscape mode.
You should be on look out for some traditional features
that’s not available, like Google Play services, auto focus
feature on camera and many other.

7. GLASS WARE DEVELOPMENT
GLASS ware is a website/web service.
It uses MIRROR API to create html information cards and send
them using the restful services to the google servers.
MIRROR API is available in many popular languages so it is
language friendly.
Then Google Servers will push those cards to the Google Glass,
when it is connected to the internet(Basic C2DM).
Some actions like read aloud, pin, share can be specified for the
html cards generated in the Mirror API.
Important - Mirror API does not support Java script

9. CURRENTLY MIRROR API IS
AVAILABLE ON THESE LANGUAGES

10. WHAT IS IMPOSSIBLE TO DO
There is nothing impossible in Native Android app when you can
pair your GLASS to the phone.
But when it comes to GLASS ware, there are some restrictions.
The html cards you push cannot contain any java scripts.
Using the cards only some predefined actions are
possible.(Example: share, delete, pin, read aloud)
Native Android apps or intends cannot be launched using the
html cards pushed from the GLASS ware.

11. ON MY EXPERIENCE
On my experience on Google GLASS development, I
prefer native GLASS apps rather than the GLASS ware
development.
Usually any problems can be handled using the
Android.
But still there is a positive site in the GLASS ware. For
the purpose of notification and updatable
notification, GLASS ware is good.

12. THE END
 This slide is designed to provide basic knowledge on Google GLASS for developers, based on
the XE9 update. All the details are written on my Experience as a Google Glass App
developer at Exilesoft(Pvt) Ltd.
Those who are interested in Google GLASS and it’s Development please visit my Blog
www.pathofacoder.com
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