These are the slides from my talk 'Hello again, Android Wear' which I held at Mobiconf 2015. Today it is about one year ago that the first Android Wear powered devices were launched at the Google I/O 2014 in San Francisco. Until now only a handful of popular applications have been built that are capable of tapping the full potential of Android Wear - I want to encourage you to get the maximum out of the immense pool of possibilities that provides Android Wear. In my following talk I am going to give you an overview of the Android Wear ecosystem, take you with me on a deep dive into the world of wearable design and explain in a short introduction on how to build awesome applications which run natively on your watch.

1. Hello,
Android Wear!
+FrederikSchweiger | @flschweiger
Design and build apps for wearables.

2. ~ 0.25 %
of all apps in the Google Play Store

7. ?

9. Suggest.
Be aware of the user’s context ( time,
location, physical activity ) and
proactively display the currently
needed information.

10. Demand.
Listen to voice commands and / or
show your fullscreen user interface.

11. launched automatically glanceable suggest and demand zero or low interaction

12. launched automatically glanceable suggest and demand zero or low interactionDesigning for Glancing

13. extended notifications
VS
native wear applications

14. extended notifications
VS
native wear applications

16. NO WORK
REQUIRED

18. NO WORK
REQUIRED

21. NotificationCompat.WearableExtender wearableExtender =
new NotificationCompat.WearableExtender()
.setHintHideIcon(true)
.setBackground(mBitmap)
.addPage(mySecondPageNotification);
WearableExtender
NotificationService.java

22. // Extend the notification builder with the second page
Notification notification = notificationBuilder
.extend(wearableExtender)
.build();
WearableExtender
NotificationService.java
Simple.

23. extended notifications
VS
native wear applications

24. Send data Custom UI Voice Actions

25. Send data Custom UI Voice Actions

27. Data
Node
Message
API

28. DataItem
consists of
Payload
Path
API

29. Node
consists of
ID
Name
isNear()
API

30. Message
consists of
Path
Payload (optional)
API

31. Send data Custom UI Voice Actions

32. Think about stream cards first!

33. Max 5 seconds per interaction!
5

34. ✓✘

36. Don’t buzz your users on every move!

37. The Wearable UI Library
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.google.android.support:wearable:+'
compile 'com.google.android.gms:play-services-wearable:+'
}
WearableListView CircledImageView ConfirmationActivity ...and many more!

38. Send data Custom UI Voice Actions

39. <activity android:name="MyNoteActivity">
<intent-filter>
<action android:name="android.intent.action.SEND" />
<category android:name="com.google.android.voicesearch.SELF_NOTE" />
</intent-filter>
</activity>
“OK Google, take a note” “OK Google, note to self” “OK Google, call me a taxi”
System-provided
AndroidManifest.xml

40. <application>
<activity
android:name=".MainTimerActivity"
android:label="Timer" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
“OK Google, start Timer”
App-provided
AndroidManifest.xml

41. private static final int SPEECH_REQUEST_CODE = 0;
// Create an intent that can start the Speech Recognizer activity
private void displaySpeechRecognizer() {
Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL,
RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
// Start the activity, the intent will be populated with the speech text
startActivityForResult(intent, SPEECH_REQUEST_CODE);
}
Free-form Speech Input
MainActivity.java

42. DEMO
time

46. Thanks!
+FrederikSchweiger | @flschweiger
Feel free to circle me on Google+ and send
me your questions! You will find the slides in
my Google+ stream.