Wearable Android

Travis Himes

CODE:

goo.gl/achsNC

goo.gl/1YhXDl

Introductions

• Who am I?
• What's this about?
• How can I get the most out of this?
• What are we going to do?

Repo Urls:

goo.gl/achsNC

goo.gl/1YhXDl

Glass aside

• Swiping
• Cards
• Active cards vs Passive
• "timeline"

Goals

• Consume a REST service
• Display info on a device
• More interesting things!

Goals

• Display SOMETHING on the watch!
• Consume a REST service
• Display info on a device
• More interesting things!

CODE

Consume a REST Service

• Github
• Retrofit
• RxJava

CODE

Display results on a device

• Simple
• Pages
• Actions

CODE

Wear Remote Input

• Similar to what we've done
• Doesn't make sense in this exact context
• Entirely possible, STT handled for you
• setChoices if you don't need them to speak

<no code, yet>

More Interesting Things

• App running on Wear
• Communication
• Example

Wear app

• Wear is its own Android OS
• App distributed within phone app
• Uses phone for networking
• No keyboard!

Device Communication

Phone <=> Watch

• Data Items
  • Asynchronous
  • Guaranteed
  • Suggested Size limit (~100KB)
    • Circumventable
  • Callbacks to implement
  • State to maintain
• Messages
  • Synchronous
  • Not Guaranteed
  • Hard Size limit (~100KB)
  • Service to receive messages
  • State to maintain

Important Considerations

• Be stingy with your network usage
• Be stingy with your battery usage
  • Network
  • Sensors
  • Display Updates

Help me choose

• Runs entirely on watch
• Input is quick and easy
• Stops itself when it's done

CODE

Other Options

Do it with Notifications, from the Wear device

Questions

Comments

?

CODE:

goo.gl/achsNC

goo.gl/1YhXDl

Thanks!

@travis_himes