Develop Reference

How to open same activity after clicked difference notifications

i spend a lot of time to resolve my problem. i have written a messenger client in android. my application receive income message and raise a notification. in notification bar i display each income message in a notification item. when click to notification item it will open a conversation activity to list all messages from the beginning until now. everything dose perfect but when i click another item in notification bar, nothing happen! (it must reload data for another conversation). This is my code to raise a notification:
private void showNotification(String message, Class activity, Message messageObject) {
//Get the Notification Service
NotificationManager notificationManager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
CharSequence text = message;//getText(R.string.service_started);
Notification notification = new Notification(R.drawable.ic_launcher, text, System.currentTimeMillis());
notification.flags |= Notification.FLAG_AUTO_CANCEL;
Intent callbackIntent = new Intent(context, activity);
if(messageObject != null)
{
callbackIntent.putExtra("conversation", MessageManager.getProvider().getConversation(messageObject.getConversationId()));
}
//callbackIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
int myUniqueValue = new Random().nextInt();
PendingIntent contentIntent = PendingIntent.getActivity(context, myUniqueValue, callbackIntent, PendingIntent.FLAG_ONE_SHOT);
notification.setLatestEventInfo(context, messageObject.getFrom(), text, contentIntent);
notificationManager.notify(messageObject.getFrom(), myUniqueValue, notification);
}
This is code block to call showNotification function
showNotification(message.getBody(), ConversationActivity.class, messageObject);

Despite your efforts to supply a unique value, those PendingIntents are all treated as the same by the system, so once you click one, the rest are rendered inert.
You'll need to add something distinguishing to callbackIntent; I suggest inventing a data URI that includes the conversation ID or something else that's guaranteed to be different for each notification (see setData).
Finally, I'd encourage you to try to collapse multiple notifications into one icon—you don't want to spam the user. See the Notifications section in the Android Design guide, under "Stack your notifications".

i changed my code and it work very well
private void showNotification(Context context, CharSequence contentTitle, CharSequence contentText, CharSequence notificationContent, Class activity, Conversation conversation) {
//Get the Notification Service
NotificationManager notificationManager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(R.drawable.ic_launcher, notificationContent, System.currentTimeMillis());
notification.flags |= Notification.FLAG_AUTO_CANCEL;
Intent callbackIntent = new Intent(context, activity);
if(conversation != null)
{
callbackIntent.putExtra("conversation", conversation);
}
callbackIntent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
int myUniqueValue = new Random().nextInt();
PendingIntent contentIntent = PendingIntent.getActivity(context, myUniqueValue, callbackIntent, PendingIntent.FLAG_ONE_SHOT);
notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
notificationManager.notify(myUniqueValue, notification);
}

Android Status Bar Notification: make it un-clearable and have it return to app (not start a new instance)

I am developing an Android app and I want a status bar notification that cannot be cleared by the user. Does anyone know how to do that? I've seen them with apps like Skimble where a non-clearable notification appears while using the application.
Also, I'd when the user clicks/presses the notification, I want it to return to the app instance that is already running. Right now it starts a new instance. Again like the Skimble app, I just want to return to the already running instance of the app.
Thanks.

I found a solution to this problem. I used FLAG_ONGOING_EVENT to make the notification persist. Here's the code:
String ns = Context.NOTIFICATION_SERVICE;
NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
int icon = R.drawable.mypic;
long when = System.currentTimeMillis();
Notification notification = new Notification(icon, tickerText, when);
notification.flags = Notification.FLAG_ONGOING_EVENT;
Context context = getApplicationContext();
CharSequence contentTitle = "Title Text";
CharSequence contentText = "Content text.";
Intent intent = new Intent(this, MyClass.class);
intent.setAction("android.intent.action.MAIN");
intent.addCategory("android.intent.category.LAUNCHER");
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, intent, 0);
notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
final int HELLO_ID = 1;
mNotificationManager.notify(HELLO_ID, notification);

Here is the solution for the NotificationCompat.Builder
NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("MyApp")
.setContentText("MyMsg")
.setOngoing(true);
More at the Google docs.

notification.setLatestEventInfo is deprecated so you have to use the Notification.builder and if your using 2.X and lower API you have to use NotificationComacpt.Builder and this is not applicable and I couldn't make my notification stays. so I used setDeleteIntent and pointed to the same activity and on resume method just call the block of code which shows your notification. So it is kinda work around.

Cannot open first notification but opens for the rest

I have some kind of SMS application. So everytime the phone received a new message, it should have a notification and upon clicking it, will launch the activity. Right now, when receiving 1 message, it notifies, removes in the status bar and doesn't not launch the activity. But when receiving 2 or more messages, the first notification cannot launched upon clicking while the rest(2nd, 3rd notification...) can. Below are my codes.
Intent newIntent = new Intent(context, PreviewActivity.class);
newIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK+0);
newIntent.setAction(strFxPrimaryKey);
Bundle newBundle = intent.getExtras();
newBundle.putInt(GlobalConstants.PRIMARY_ID, Integer.parseInt(strFxPrimaryKey));
newIntent.putExtras(newBundle);
int icon = R.drawable.notification_fx;
CharSequence tickerText = context.getString(R.string.fx_received);
long when = System.currentTimeMillis();
Notification newNotification = new Notification(icon, tickerText, when);
newNotification.flags |= Notification.FLAG_AUTO_CANCEL; //| Notification.FLAG_ONGOING_EVENT;
PendingIntent contentIntent = PendingIntent.getActivity(context, Integer.parseInt(strFxPrimaryKey), newIntent, 0);
newNotification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
String newNotificationService = Context.NOTIFICATION_SERVICE;
NotificationManager newNotificationManager = (NotificationManager) context.getSystemService(newNotificationService);
newNotificationManager.notify(Integer.parseInt(strFxPrimaryKey), newNotification);
context.startActivity(newIntent);
context.removeStickyBroadcast(intent);
Based on the answers here in the stackoverflow, to create a unique intent, it should have unique action that's why I set the primary key as the action. I also set the request code to primary key to have a unique pending intent. Is there something missing out in my code? Thanks.
EDITED
By the way, whenever I remove the context.startActivity(newIntent);, it works right. Can anyone tell me why? Thanks.

Android Notification vibration time

I am using following code for notification. It should vibrate and make sound at the time of event. But it is giving sound when the notification is creating, although the notification time is after 30 min.
final Notification notifyDetails = new Notification(R.drawable.icon, "Myapp",nextAlarmTime);
Context context = getApplicationContext();
CharSequence contentTitle = "Viramune";
CharSequence contentText = notificationAlart;
Intent notifyIntent = new Intent(context, Myapp.class);
PendingIntent intent1 = PendingIntent.getActivity(ViewDoughnut.this, 0, notifyIntent, android.content.Intent.FLAG_ACTIVITY_NEW_TASK);
notifyDetails.setLatestEventInfo(context, contentTitle, contentText, intent1);
notifyDetails.flags = Notification.FLAG_ONLY_ALERT_ONCE;
notifyDetails.defaults |= Notification.DEFAULT_SOUND | Notification.DEFAULT_VIBRATE;
mNotificationManager.notify((int) editEventid, notifyDetails);
What is the problem in my code?

Android does exactly what it told to do:
mNotificationManager.notify((int) editEventid, notifyDetails);
This line creates a notification. You should use AlarmManager to schedule your notification in future.

The third parameter to the Notification constructor is not used to determine when to shoot the notification, but is just used for display and sort.
I believe you're trying to do something that needs to be done using AlarmManager, and not Notification.

Android Notification message (doesn't) switch from activity

I was trying to switch from tabview (those took about 1/3rd of a small screen) to fullscreens selectable via notification messages.
So far so good, everything done following the instructions on many howto's its all working like a charm. (that is on the sdk emulator)
now i've transfered the app to my actual android telephone and now it doesn't switch the screens anymore via the notifications. it ALWAYS opens the MainActivity.
private void DroiDCNotification(int NotificationID, CharSequence tickerText, CharSequence contentTitle, CharSequence contentText) {
//throw new UnsupportedOperationException("Not yet implemented");
String ns = Context.NOTIFICATION_SERVICE;
NotificationManager mNotificationManager = (NotificationManager) getSystemService(ns);
int icon = R.drawable.droidc_icon; // icon from resources
long when = System.currentTimeMillis(); // notification time
Context context = getApplicationContext(); // application Context
Intent notificationIntent = new Intent(this, MainActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
// the next two lines initialize the Notification, using the configurations above
Notification notification = new Notification(icon, tickerText, when);
notification.setLatestEventInfo(context, contentTitle, contentText, contentIntent);
mNotificationManager.notify(NotificationID, notification);
}
So how can i make the notification called by a specific Activity open that specified Activity?

I was trying to switch from tabview (those took about 1/3rd of a small screen) to fullscreens selectable via notification messages.
I have no idea why you think that this is a good idea. Notifications are not designed for this role. Please use an options menu.
So how can i make the notification called by a specific Activity open that specified Activity?
It is going to execute the PendingIntent. Your PendingIntent wraps an Intent identifying MainActivity.class. If you do want it to use MainActivity.class, change MyActivity.class to whatever class you wish.

Hi Just use this twolines in yr activity
Intent notificationIntent = new Intent(context, SamplePushActivity.class);
PendingIntent intent = PendingIntent.getActivity(context, 0, notificationIntent, android.content.Intent.FLAG_ACTIVITY_NEW_TASK);