Impariamo come fare comunicare un device android con il wear e viceversa. CodeLab esempio: https://github.com/SBengine/MyFirstWearApp

1. +BrunoBelluccia
@brunobelluccia
Local Community Manager
Da Android ad Android wear:
l’evoluzione indossabile

2. #androidwear

3. #androidwear

4. Project Setup
#codelab

5. #androidstudio
http://goo.gl/ZSJH5O
is optimized for Wear

6. Android Wear Project Wizard
#codelab

7. Android Wear Project Wizard

8. Setting Android Wear AVD
#codelab

10. Connect AVD or wear in debug mode
//per collegare il device al simulatore wear
adb -d forward tcp:5601 tcp:5601
//per collegare il wear con adb
adb forward tcp:4444 localabstract:/adb-hub
adb connect localhost:4444
Terminale
https://developer.android.com/training/wearables/apps/bt-debugging.html
#codelab

11. Project Structure
#codelab

12. WatchViewStub
<android.support.wearable.view.WatchViewStub
...
app:rectLayout="@layout/rect_activity_wear"
app:roundLayout="@layout/round_activity_wear"
...>
</android.support.wearable.view.WatchViewStub>
XML
#codelab

13. protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_wear);
final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
@Override
public void onLayoutInflated(WatchViewStub stub) {
mTextView = (TextView) stub.findViewById(R.id.text);
}
});
WearActivity.java
#codelab

14. protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_wear);
final WatchViewStub stub = (WatchViewStub) findViewById(R.id.watch_view_stub);
stub.setOnLayoutInflatedListener(new WatchViewStub.OnLayoutInflatedListener() {
@Override
public void onLayoutInflated(WatchViewStub stub) {
mTextView = (TextView) stub.findViewById(R.id.text);
}
});
WearActivity.java
#codelab

15. Mobile
Module
Wear
Module
?
#codelab

16. Establish Connection
#codelab

17. developer.android.com/google/play-services/setup.html
Google Play Services
#codelab

18. GoogleApiClient
mGoogleApiClient = new GoogleApiClient.Builder(context)
.addApi(Wearable.API)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
#codelab

19. Establish Connection
@Override
protected void onStart() {
super.onStart();
mGoogleApiClient.connect();
}
@Override
protected void onStop() {
super.onStop();
mGoogleApiClient.disconnect();
}
In Activity
#codelab

20. Mobile
Module
Wear
Module
GoogleApi
Client
GoogleApi
Client
#codelab

21. Mobile
Module
Wear
Module
GoogleApi
Client
GoogleApi
Client
#codelab

22. Send & Receive Data
#codelab

23. MessageDataItem
#codelab

24. Data Layer Interfaces
static interface DataListener {
void onDataChanged(DataEventBuffer dataEvents);
}
static interface MessageListener {
void onMessageReceived(MessageEvent messageEvent);
}
static interface NodeListener {
void onPeerConnected(Node node);
void onPeerDisconnected(Node node);
}
#codelab

25. Add Listeners in onConnected()
@Override
public void onConnected(Bundle bundle) {
Wearable.DataApi.addListener(mGoogleApiClient, this);
Wearable.MessageApi.addListener(mGoogleApiClient, this);
Wearable.NodeApi.addListener(mGoogleApiClient, this);
}
#codelab

26. DataItem / Message
Path
String “/path/to/item”
Payload
Byte[ ] <=100KB
#codelab

27. Mobile
Module
Wear
Module
DataItem DataItem
#codelab

28. Sync Data using DataMap
PutDataMapRequest dataMap = PutDataMapRequest.create("/path");
dataMap.getDataMap().putString("/itemID", "Hello, World");
PutDataRequest request = dataMap.asPutDataRequest();
PendingResult<DataApi.DataItemResult> pendingResult =
Wearable.DataApi.putDataItem(mGoogleApiClient, request);
#codelab

29. React to Data Sync
@Override
public void onDataChanged(DataEventBuffer dataEvents) {
for (DataEvent event : dataEvents) {
if (event.getType() == DataEvent.TYPE_DELETED) {
...
} else if (event.getType() == DataEvent.TYPE_CHANGED) {
...
}
}
}
#codelab

30. Retrieve the DataMap
@Override
public void onDataChanged(DataEventBuffer dataEvents) {
...
for (DataEvent event : events) {
if (event.getType() == DataEvent.TYPE_CHANGED) {
DataMapItem dataMapItem =
DataMapItem.fromDataItem(event.getDataItem());
DataMap dataMap = dataMapItem.getDataMap();
String s = dataMap.getString("/itemID");
}
#codelab

31. Mobile
Module
Wear
Module
Message Message
Message Message
#codelab

32. Send Message using MessageAPI
SendMessageResult result = Wearable.MessageApi.sendMessage(
mGoogleApiClient, node, "/path/startactivity", payload).await();
if (!result.getStatus().isSuccess()) {
Log.e(TAG, "ERROR: failed to send Message: " +
result.getStatus());
}
#codelab

33. Get Connected Nodes
private Collection<String> getNodes() {
HashSet<String> results = new HashSet<String>();
NodeApi.GetConnectedNodesResult nodes =
Wearable.NodeApi.getConnectedNodes(mGoogleApiClient).await();
for (Node node : nodes.getNodes()) {
results.add(node.getId());
}
return results;
}
#codelab

34. Receiving Message
@Override
public void onMessageReceived(MessageEvent messageEvent) {
if (messageEvent.getPath().equals(START_ACTIVITY_PATH)) {
Intent startIntent = new Intent(this, MainActivity.class);
startIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(startIntent);
}
}
#codelab

35. Handling Data Layer Events -
App Structure
#codelab

36. Mobile
Module
Wear
Module
#codelab

37. Wear
Module
Mobile
Module
Foreground
Activity
Foreground
Activity
#codelab

38. Foreground
Activity onDataChanged()
onMessageReceived()
onPeerConnected()
onPeerDisconnected()
GoogleApi
Client
#codelab

39. Wear
Module
Mobile
Module
Foreground
Activity
Foreground
Activity
#codelab

40. Wear
Module
Mobile
Module
Foreground
Activity
Foreground
Activity
WearableListener
Service
WearableListener
Service
#codelab

41. WearableListener
Service
onDataChanged()
onMessageReceived()
onPeerConnected()
onPeerDisconnected()
GoogleApi
Client
#codelab

42. Example
#codelab

43. Wear
Module
Mobile
Module
Foreground
Activity
Foreground
Activity
WearableListener
Service
#codelab

44. #codelab

45. MyFirstWearApp
Android wear "mobile to wear" and "wear to mobile" communication example
#codelab
https://github.com/SBengine/MyFirstWearApp

46. Teleport
Data Sync and Messaging Library for Android Wear
Thanks to Mario Viviani
#codelab
github.com/Mariuxtheone/Teleport
Github
compile 'Teleport:teleportlib:0.1.3'
Gradle

47. #socials

48. plus.google.
com/b/112454638433901035373/112454638433901035373
https://developers.google.
com/groups/chapter/112454638433901035373/
facebook.com/gdggela
#socials

49. Bruno Belluccia
brbelluccia@gmail.com
google.com/+BrunoBelluccia
facebook.com/bruno.belluccia
@brunobelluccia
linkedin.com/bruno-salvatore-belluccia
#contacts
Thank you!

50. +BrunoBelluccia
@brunobelluccia
Local Community Manager
Da Android ad Android wear:
l’evoluzione indossabile