ria unleashed - developing for the tv with litl os

@ryancanulla | developer.litl.com

Developing For The TV Companion

Wednesday, November 10, 2010

@ryancanulladeveloper.litl.com

What will be available to developers?



What’s available to developers?

Keyboard . Trackpad . Gestures




Trackpad . Gestures . Accelerometer




Gestures . Accelerometer . Microphone




Accelerometer . Microphone . Webcam




Microphone . Webcam . Keyboard



What do I need to build channels now?




litl os SDK




litl os simulator



How can I get a more realistic experience?




Use your phone.




Connect Over WiFi



What’s the developer workflow?




Start in your favorite IDE.




Build your channel.




Test in the simulator.




Add remotes in the simulator.




Use an Android or iOS device.




Go to the settings tab.




Enable remote app connections.




Run your Android / iOS app.




Test on the device.




Prepare the USB stick.




Plug it into the device :-)



How “I” manage the service/view.




LitlServiceManager()

Where “my” service lives

How I pass my service around my application

Singleton




LitlViewManager()

Listen for events from the service manager and react accordingly

Ensures that your view change stuff is simple, clean, and tucked away nicely

I usually have a class for each view (ie. Card, Focus Channel)



What is overscan?



What is overscan?

What is overscan?

Cropping of your content when it’s displayed on TV’s

Varies from TV to TV, but usually 5-10%

Occurs on both old & new TV sets



How do I deal with overscan?




Liquify your layout.




Trust in the ViewBase()

All of my view objects extend ViewBase

You can now call myViewObject.setView(width, height)

Override sizeUpdated() and add in your layout logic



Break.



That was flash.



Managing remotes and accelerometer data.




LitlRemoteManager()

Instantiate in the ServiceManager

Extends RemoteHandlerManager

Handles the connection/disconnection of remotes




LitlRemoteManager() continued...

Constructor needs a reference to the service as well as a factory class

Don’t forget to call the start() method

Override onRemoteConnected/onRemoteDisconnected




RemoteFactory()

Implements IRemoteHandlerFactory

Instantiates a Remote() factory object

This is a “set it and forget it” type of class :-)




Remote()

Extends AccelerometerEventHandler or KeypadRemoteHandler

Implements IRemoteHandler

Override protected function onAccelerometerEvent()

Can override pair() & unpair() methods


ria unleashed - developing for the tv with litl os

Technology

developer workflow

whats available

accelerometer data

realistic experience

tv companion

ios device

litl os simulator

service lives