Amrit Sanjeev talks about Android Wear, what it is, why is it useful, and how you can get your apps use things related to Android Wear

1. INTRODUCTION TO
ANDROID WEAR
Amrit Sanjeev
Google Developer Expert

2. Agenda
• About me
• Blrdroid GDG
• Android Wear introduction
• Q&A

3. About me
• Organizer, Bangalore Android User Group
( www.blrdroid.org )
• Google Developer Expert (GDE) for Android.
• Part of Intel Android Influencer program.
• Staff engineer for Mobile at Digital Insight (formerly
Intuit).
• Previous companies – Philips research, IBM.
• Mentor at 10,000 startups

4. Bangalore Android User Group ( www.BlrDroid.org)
• Largest open Android developer community in the India
• Over 5100+ members
• 4.5+ years and completely free.
• 54 meet-ups
• 5 hackathons
• Blrdroid teach – College edition more than 2300+ students from over
35 colleges participated.
• Active participation in events like Droidcon, Global Android
Developer hackathon, Google Bizdroid etc

5. Android wear
The next level of integration

9. Coming soon

10. Interacting for Android wear
Roll up your sleeves

11. Talk to the
wearable
Take actions
the wearable
talks to you
actions actions
context

12. Notifications

13. NO WORK
REQUIRED

14. Notifications
Stacks Pages Replies

15. Setting up your developer environment
Roll up your sleeves

16. Prerequisites
● On computer
● Install Android Studio / Eclipse bundle
● Sign up for Android Wear Development Preview
● Install the preview support library
● On device
● Install Android Wear Preview beta app

17. Install Android Wear System Image
● Android SDK Tools revision 22.6 or higher
● Android Wear ARM EABI v7a System Image
● Update Android Support Library
● Download the wearable preview support jar

18. Setup the Android Wear Emulator
● Launch the Android Virtual Device Manager
● Target Android 4.4.2 - API Level 19
● CPU Android Wear ARM (armeabi-v7a)

19. Setup Android Wear Preview app
● Settings: grant notification access
● Connect your device over USB
● adb -d forward tcp:5601 tcp:5601
● If the icon in the emulator changes to “g” -
Good

20. Things to take care of
think before acting

21. Keep in mind
Read the design guidelines
Be context aware
Show relevant actions
Think before you notify
Wearable special functionality

22. Some code snippets

23. Wearable only functionality
// Create a NotificationCompat.Builder for standard notification features
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(mContext)
.setContentTitle("New mail from " + sender.toString())
.setContentText(subject)
.setSmallIcon(R.drawable.new_mail);
// Create a WearablesNotification.Builder to add special functionality for wearables
Notification notification =
new WearableNotifications.Builder(notificationBuilder)
.setHintHideIcon(true)
.build();

24. Adding actions
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_event)
.setContentTitle(eventTitle)
.setContentText(eventLocation)
.setContentIntent(viewPendingIntent)
.addAction(R.drawable.ic_map,
getString(R.string.map),
mapPendingIntent);

25. Multipage notifications
// Create builder for the main notification
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this)……
// Create a big text style for the second page
BigTextStyle secondPageStyle = new NotificationCompat.BigTextStyle();
secondPageStyle.setBigContentTitle("Page 2")
.bigText("A lot of text...");
// Create second page notification
Notification secondPageNotification =
new NotificationCompat.Builder(this)
.setStyle(secondPageStyle)
.build();
// Create main notification and add the second page
Notification twoPageNotification =
new WearableNotifications.Builder(notificationBuilder)
.addPage(secondPageNotification)
.build();

26. Stacked notifications
Notification notif1 = new WearableNotifications.Builder(builder)
.setGroup(GROUP_KEY_EMAILS)
.build();
// Issue the notification
NotificationManagerCompat notificationManager =
NotificationManagerCompat.from(this);
notificationManager.notify(notificationId1, notif);
builder = new NotificationCompat.Builder(mContext)
.setContentTitle("New mail from " + sender2)
.setContentText(subject2)
.setSmallIcon(R.drawable.new_mail);
// Use the same group as the previous notification
Notification notif2 = new WearableNotifications.Builder(builder)
.setGroup(GROUP_KEY_EMAILS)
.build();
notificationManager.notify(notificationId2, notif);