Developing for Chromecast on Android
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We look at how you can create an app that is Cast enabled making use of the Cast Companion LIbrary
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Developing for Chromecast on Android
- 1. Developing for Chromecast Cast Companion Library & Custom Receiver Application
- 2. Kurt Mbanje @ckurtm / peirr.com
- 6. How does it work?
- 7. • Sender application Two components Applications running on a mobile device or laptop • Receiver application (HTML, JavaScript , CSS) app running on a Chromecast or other cast compatible device.
- 8. • Sender application Two components Applications running on a mobile device or laptop • Receiver application (HTML, JavaScript , CSS) app running on a Chromecast or other cast compatible device.
- 12. • Custom Media Receiver 3 Types of receivers Requires application id , DRM Content, Data centric apps • Styled Media Receiver Can be styled with CSS files, requires application id • Default Media Receiver Does not require application id, can use CastMediaControlIntent.DEFAULT_MEDIA_RECEIVER_APPLICATION_ID in your sender if using CCL
- 13. Custom Receiver
- 15. Simple Custom Receiver <head> <title>LocalCast</title> <script src="//www.gstatic.com/cast/sdk/libs/receiver/2.0.0/cast_receiver.js"></script> <link rel="stylesheet" href="receiver.css"/> </head>
- 16. <script> //[3] handle the payload from the sender function process(json){ console.log('received: ' + json.url); document.getElementById("image").src= json.url; } //[1] get a handle to the receiver manager window.castReceiverManager = cast.receiver.CastReceiverManager.getInstance(); castReceiverManager.onSenderDisconnected = function(event) { console.log('disconnected: ' + event.data); if (window.castReceiverManager.getSenders().length == 0) { //close the app if we have no more connected devices window.close(); } }; //[2] create a CastMessageBus to handle messages for a custom namespace window.messageBus = window.castReceiverManager.getCastMessageBus('urn:x-cast:com.peirr.localcast'); window.messageBus.onMessage = function(event) { var json = JSON.parse(event['data']); //decode the request from sender app window.sender = event.senderId; process(json); } //[4]start the listener window.castReceiverManager.start(); </script>
- 18. • Development • Publish to any server & add endpoint to cast console • Debug http://RECEIVER-IP-ADDRESS:9222 • Production Server has to be secure (https://<yourserver>) • Google Cast SDK Developer Console https://cast.google.com/publish/ Publishing
- 19. • Development • Publish to any server & add endpoint to cast console • Debug http://RECEIVER-IP-ADDRESS:9222 • Production Server has to be secure (https://<yourserver>) • Google Cast SDK Developer Console https://cast.google.com/publish/ Publishing
- 20. • Development • Publish to any server & add endpoint to cast console • Debug http://RECEIVER-IP-ADDRESS:9222 • Production Server has to be secure (https://<yourserver>) • Google Cast SDK Developer Console https://cast.google.com/publish/ Publishing
- 25. compile "com.android.support:mediarouter-v7:23.3.0" compile 'com.google.android.gms:play-services-cast:8.4.0' compile 'com.google.android.libraries.cast.companionlibrary:ccl:2.8.3'
- 30. Initialize CastConfiguration options =new CastConfiguration.Builder("84B70D9D") .enableAutoReconnect() .enableDebug() .build(); DataCastManager.initialize(this,options);
- 31. Cast Button <item android:id="@+id/action_cast" android:title="@string/action_cast" app:actionProviderClass="android.support.v7.app.MediaRouteActionProvider" app:showAsAction="always"/> @Override public boolean onCreateOptionsMenu(Menu menu){ super.onCreateOptionsMenu(menu); getMenuInflater().inflate(R.menu.menu,menu); DataCastManager.getInstance().addMediaRouterButton(menu,R.id.action_cast); return true; }
- 32. Send data to Receiver Application JSONObject obj = new JSONObject(); String url = "http://"+ info.ip + ":" + info.port + "/" + item.getFile().getAbsolutePath(); Log.d(TAG, "casting: " + url); try { obj.put("url",url); DataCastManager.getInstance().sendDataMessage(obj.toString(),"urn:x- cast:com.peirr.localcast"); } catch (JSONException|IOException e) { e.printStackTrace(); }
- 33. Questions