Scroll Essential Android 2.3 Manual de usuario descargar pdf (Pagina 27)

Android Wear Docs, Release 1.1

for (DataEvent event : dataEvents) {

// Check the event type

if (event.getType() == DataEvent.TYPE_CHANGED) {

// Check the data path

if (path.equals(WEARABLE_START_PATH)) {

// Create a local notification

dataMap = DataMapItem.fromDataItem(event.getDataItem()).getDataMap();

sendLocalNotification(dataMap);

}

3. In the wearable, implement the procedure that constructs and posts a demand (notiﬁcation) that can launch your

app. Optionally, the Pending Intent in this notiﬁcation can include extra data for the wearable app.

private void sendLocalNotification(DataMap dataMap) {

int notificationId = 001;

// Create a pending intent that starts this wearable app

Intent startIntent = new Intent(this, HoleActivity.class).setAction(Intent.ACTION_MAIN);

// Add extra data for app startup or initialization, if available

startIntent.putExtra("extra", dataMap.getString("extra"));

PendingIntent startPendingIntent =

PendingIntent.getActivity(this, 0, startIntent, PendingIntent.FLAG_CANCEL_CURRENT);

Notification notify = new NotificationCompat.Builder(this)

.setContentTitle(dataMap.getString("title"))

.setContentText(dataMap.getString("body"))

.setSmallIcon(R.drawable.ic_launcher)

.setAutoCancel(true)

.setContentIntent(startPendingIntent)

.build();

NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);

notificationManager.notify(notificationId, notify);

}

The wearable notiﬁcation stack now includes a notiﬁcation inviting the user to launch your wearable app. A swipe to

the left displays the launcher icon, which the user clicks to launch the app.

4. In the wearable app, receive and process any extra information. Normally, you implement this within the

onCreate override of your app.

// Check for extra data in the intent

// If present, extract and use

Bundle extras = getIntent().getExtras();

if (extras != null) {

// Get the extra data

String extraData = extras.getString("extra");

...

// Act on the extra data

...

}

5.3. Handheld Activation 23

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