Develop Reference

Why can't I start an Activity from a page Notification on Android Wear?

I just succesfully created a bunch of pages notifications on my Wear device.
The only problem is that the PendingIntent does not seems to start an Activity
(which is of course declared in Manifest).
Here is my code:
List extras = new ArrayList();
Intent viewIntent = new Intent(getApplicationContext(), DetailActivity.class);
viewIntent.putExtra("KEY", "TEST123");
//Note: I also tried: Intent viewIntent = new Intent(getApplicationContext(), DetailActivity.class).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent viewPendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, viewIntent, 0);
for (Route aRoute : myRoutes) {
Notification aNotif = new NotificationCompat.Builder(getApplicationContext())
.setContentTitle("BUS " + aRoute.route_short_name)
.setContentText(aRoute.directions.get(0).trip_headsign)
.setLargeIcon(bitmap)
.setContentIntent(viewPendingIntent)
.setSmallIcon(R.mipmap.ic_launcher).build();
extras.add(aNotif);
}
NotificationCompat.Builder builder1 = new NotificationCompat.Builder(this)
.setContentTitle(title)
.setContentText(desc)
.setContentIntent(viewPendingIntent)//Just in case
.setSmallIcon(R.mipmap.ic_launcher);
Notification notification = builder1
.extend(new NotificationCompat.WearableExtender()
.addPages(extras))
.setContentIntent(viewPendingIntent)//Just in case
.build();
NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
notificationManager.notify(0, notification);
When I press on a Notification, I expect the intent to start, but nothing happens..
Any suggestion is welcome.
EDIT:
This code works, just after the notification, so, the second activity can easily be launched withour bug:
startActivity(viewIntent);
EDIT2:
There is now an "open" button at the end that works fine, but still nothing happens on individual notifications (every pages)

Pages are not clickable - on Android Wear, only actions are clickable. For phone generated notifications, those only appear after all pages
If you have a content intent on your phone generated notification, that will always appear as an 'Open on phone' action. There is no way to disable this unless you remove your content intent (making the notification unclickable on phones).
I say 'phone generated' as you can also create a Wear app. By using the data layer to push messages to your Wear app, the Wear app can then build custom notifications. These notifications allow you to use setDisplayIntent() and display activities inline (either as the main page or as separate pages). These activities can, of course, contain any View you want, including actions to perform any action (such as send a message back to the phone to start a particular activity).
Note that because pages are not clickable by default, styling of a custom notification should make it very obvious that the items are clickable. Rather than using a custom notification activity, you may consider using setContentAction() to display the action icon inline with the rest of the layout - this removes the action as a separate element past the action and places it directly on the notification/page.

How to find that notification view is expanded or not

I am using the following code showing the notification, it works properly. I am look for the listener from which i can come to know whether the notification is expanded or not.
I want to open the app if the notification is expanded or else open the particular activity of the app.
Intent intent= new Intent(context, Activity1.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, getNextRandom(), intent, 0);
Builder newBuilder newBuilder = new Notification.Builder(context);
newBuilder.setContentTitle(title)
.setContentText(subtitle)
.setAutoCancel(true)
.setSmallIcon(R.drawable.icon)
.setTicker(notificationMessage)
.setContentIntent(pendingIntent);
Notificationnotification = new Notification.BigTextStyle(newBuilder)
.setBigContentTitle(notificationTitle)
.bigText(text)
.build();
Let me know if there is way to acheive this?

There is no way to know if the notification is open... What you can do is add buttons to the expanded notification that pressing on them will act differently than pressing on the notification itself.

There maybe no direct way, but maybe the following hack can help!!
You can have a custom notification layout and use RemoteView, Set a setOnClickPendingIntent to launch a service for the entire view so that you get notified when the notification is clicked.
When the user clicks the notification, service is started and show the new expanded custom layout from the service (you replace the old notification with the new one)
Maybe show your initial notification also from the same service using startforeground, so that your app is not killed and the view click can be received faster since service is already running and response time for changing the view is lower.
see this for remoteview and this for launching service from notification click.

Change notification intent in Android

I have a service that shows a notification that I wish that will be able to go to a specific activity of my app each time the user presses on it. Usually it would be the last one that the user has shown, but not always.
If the activity was started before, it should return to it, and if not, it should open it inside of the app's task, adding it to the activities tasks.
In addition, on some cases according to the service's logic, I wish to change the notification's intent so that it will target a different activity.
How do i do that? Is it possible without creating a new notification and dismissing the previous one? Is it also possible without creating a new task or an instance of an activity?

No it wouldn't be possible to change the Activity once you have sent the notification.
You can start an Activity on your task stack that is not a problem, check out the notification service in the tutorial here:
http://blog.blundell-apps.com/notification-for-a-user-chosen-time/
You have to set a pending intent on the notification:
// The PendingIntent to launch our activity if the user selects this notification
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, SecondActivity.class), 0);
// Set the info for the view that shows in the notification panel.
notification.setLatestEventInfo(this, title, text, contentIntent);
You can see the pending intent takes a normal intent "new Intent(this, SecondActivity.class" so if you want specific behaviour (like bringing to the top instead of starting a new activity. Add the flags like you would normally to this intent. i.e. FLAG_ACTIVITY_REORDER_TO_FRONT (something like that)

Since platform version 11, you can build a notification using Notification.Builder. The v4 support library has an equivalent class NotificationCompat.Builder.
You can't change the Activity once you've sent the notification, but you can update the notification with a new Intent. When you create the PendingIntent, use the flag FLAG_CANCEL_CURRENT. When you send the new notification, use the ID of the existing notification when you call NotificationManager.notify().
Also, you should be careful how you start your app. The Status Bar Notifications guide tells you how to set up the back stack.

How to close notification drop-down in Android >= 3.0 from custom rich notification with additional button?

I successfully created a custom rich notification for Android >= 3.0 that shows some text and an additional button. If you click the notification anywhere but on the button in the notification drop-down, the notification is dismissed, the drop-down closed and the specified Intent is launched as expected.
If the dedicated button in the notification is clicked, a different Intent is successfully launched, but the drop-down keeps open (and the notification is still there, but I cancel it later, that is not the problem). The Intent launches an Activity which appears behind the notifications drop-down.
What I like to achieve is to keep all the current behavior as described, but also close the notification drop-down from the Intent the button launches - is this possible? Alternatively it would be enough if the Activity from the button Intent gains the window focus.
Here the code for the custom notification, if that helps:
Notification.Builder builder = new Notification.Builder(main)
.setSmallIcon(R.drawable.notification)
.setAutoCancel(true)
.setTicker(text)
.setContentIntent(...);
RemoteViews layout = new RemoteViews(
main.getPackageName(), R.layout.notification);
layout.setTextViewText(R.id.title, title);
layout.setTextViewText(R.id.text, text);
Intent i = new Intent(
"snooze", null, main, Snooze.class
);
i.putExtra(KEY_WIDGET_ID, widgetId);
layout.setOnClickPendingIntent(R.id.notification_zzz, PendingIntent.getActivity( main, 0, i, PendingIntent.FLAG_UPDATE_CURRENT ));
builder.setContent(layout);
...
NotificationManager nm =
(NotificationManager)main.getSystemService(Context.NOTIFICATION_SERVICE);
nm.notify(0, builder.getNotification());

Asked the question in the Android developer office hours:
http://www.youtube.com/watch?v=XvLBvdml_Fs (question starting 49:10)
The answer was, that it is not possible and I should not even do this, which I question.
That is why I have created a feature request:
http://code.google.com/p/android/issues/detail?id=24762
EDIT 08-10-12:
Starting with Android 4.1 this is possible as notifications can now include additional actions. See the following page for more information:
https://developer.android.com/about/versions/android-4.1.html#UI

Android - Notifications PendingIntent goes to wrong Activity?

I currently have a notification that displays in the notification bar and when the user clicks it it should bring them to the root Activity of my application.
I have used android:finishOnTaskLaunch ="true" & android:clearTaskOnLaunch="true" in my manifest to achieve this when the user presses the app icon from the apps screen or the home screen. The user is always taken to the root activity as expected.
However when I use the following code from my notification the user gets taken to the last screen they were on rather than the root activity which is StartActivity.
Does anyone know what I'm doing wrong?
Intent notificationIntent = new Intent(this, StartActivity.class);
contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
notification.setLatestEventInfo(getApplicationContext(), getString(R.string.notification_app_name), notificationText, contentIntent);
mNotificationManager.notify(1, notification);
Adding these flags helps however it still doesn't work after a restart:
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
When I restart my application I set a service running which pops up the notification and when I do this the notification reverts back to the old undesired behavior .
SOLVED:
Solved the issue by adding this flag to the contentIntent of my notification - Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED.
Here is an link with some excellent information on the area Google dev group

try this 2 properties
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);