These are the slides for the WTT 2015 workshop I gave. See GitHub (https://github.com/tiwiz/Android-Wear-Workshop-WTT) for base and solution of the app

1. from zero to hero

2. About me
Android Developer
Tech enthusiast
Writer
RxJava addict
Kotlin curious

3. What’s new in Android Wear
• API 23
• Emulator
• Permission model
• AudioTrack, MediaPlayer and
ExoPlayer
• -round and -notround resource qualifiers
• Intel x86 support

4. The Wear Playlist
• Setting up the environment
• Download the base project
• Working with Notifications
• Custom stuff
• Sync all the data!

5. Setting up the environment
Install the Android Wear SDK from the SDK Manager

6. Setting up the environment
• Start the Wear emulator
• Enable ADB debug
• Connect your phone to the USB
• Run the adb -d forward tcp:5601
tcp:5601 command
• Pair with the Wear Emulator

7. The Wear Playlist
• Setting up the environment
• Download the base project
• Working with Notifications
• Custom stuff
• Sync all the data!

8. Download the base project
https://goo.gl/IAGVSJ

9. The Wear Playlist
• Setting up the environment
• Download the base project
• Working with Notifications
• Custom stuff
• Sync all the data!

10. Working with Notifications
Big Views
BigTextStyle bigStyle = new NotificationCompat.BigTextStyle();
bigStyle.bigText(eventDescription);
new NotificationCompat.Builder(this)
NotificationCompat.Builder notificationBuilder =
.setStyle(bigStyle);
http://goo.gl/GLhd78

11. Working with Notifications
Wear specific actions
BigTextStyle bigStyle = new NotificationCompat.BigTextStyle();
bigStyle.bigText(eventDescription);
new NotificationCompat.Builder(this)
NotificationCompat.Builder notificationBuilder =
.setStyle(bigStyle);
http://goo.gl/GLhd78
.extend(new WearableExtender().addAction(action))
// Big Views

12. Working with Notifications
~ 30 minutes
BigTextStyle bigStyle = new NotificationCompat.BigTextStyle();
bigStyle.bigText(eventDescription);
new NotificationCompat.Builder(this)
NotificationCompat.Builder notificationBuilder =
.setStyle(bigStyle);
http://goo.gl/GLhd78
.extend(new WearableExtender()
.addAction(action))
// Big Views
// Wear specific actions

13. The Wear Playlist
• Setting up the environment
• Download the base project
• Working with Notifications
• Custom stuff
• Sync all the data!

14. Custom stuff
• Custom notifications
• Custom layouts
• Keeping your app visible

15. Custom stuff
Custom notifications
• Created on Wear
• Not synchronised on the paired device

16. Custom stuff
• Custom notifications
• Custom layouts
• Keeping your app visible

17. Custom stuff
Custom layouts
• BoxInsetLayout
• CardFragment
• CircledImageView
• ConfirmationActivity
• CrossfadeActivity
• DelayedConfirmationView
• DismissOverlayView
• GridViewPager
• GridPagerAdapter
• FragmentGridPagerAdapter
• DotSpaceIndicator
• WatchViewStub
• WearableListView
http://goo.gl/JYGOkO

18. Custom stuff
• Custom notifications
• Custom layouts
• Keeping your app visible

19. • Extend WearableActivity
• Call setAmbientEnabled()
• Override onEnterAmbient(Bundle ambientDetails)
• Override onExitAmbient()
• Don’t forget onUpdateAmbient()
Custom stuff
Keeping your app visible
http://goo.gl/D7oixw

20. Custom stuff
• Custom notifications
• Custom layouts
• Keeping your app visible

21. Custom stuff
goo.gl/D7oixwgoo.gl/JYGOkO
Code time!
~45 minutes

22. The Wear Playlist
• Setting up the environment
• Download the base project
• Working with Notifications
• Custom stuff
• Sync all the data!

23. Sync all the data!
• Access the data layer
• Choose the right way to communicate
• Implement the listener

24. Sync all the data!
• Declare Google API Client on both the phone and the wearable project
• Invoke connect() method
• Start using the client in the onConnected() callback
• Module /communication in the sample project
Access the data layer

25. Sync all the data!
• Access the data layer
• Choose the right way to communicate
• Implement the listener

26. Sync all the data!
• DataItem - automatic sync
• MessageApi - remote procedure calls
• Asset - blobs of data
• WearableListenerService -
background services
• DataListener and MessageListener -
foreground components
• ChannelApi - Assets sync’ed with
DataItems, good for large files
Choose the right way to communicate
http://goo.gl/x8t3YG

27. Sync all the data!
• DataItem - automatic sync
• MessageApi - remote procedure calls
• Asset - blobs of data
• WearableListenerService -
background services
• DataListener and MessageListener -
foreground components
• ChannelApi - Assets sync’ed with
DataItems, good for large files
Choose the right way to communicate
http://goo.gl/x8t3YG

28. Sync all the data!
MessageApi and MessageListener
• Find connected nodes with
NodeApi.getConnectedNodes()
• Implement MessageListener
• Set the listener with
MessageApi.addListener()
• Send message with
MessageApi.sendMessage()
http://goo.gl/B5rCMZ
~45 minutes

29. Thanks
@_tiwiz