Develop Reference

Notification is not being dismissed (Android)

Notification setAutoCancel(true) doesn't work if clicking on Action
I have a notification with an action within it. When I tap on the notification it gets removed from the list. However, when I click on the Action it successfully completes the Action (namely makes a call), but when I return to the list of notifications, it remains there.
Relative code of the AlarmReceiver:
public class AlarmReceiver extends BroadcastReceiver {
Meeting meeting;
/**
* Handle received notifications about meetings that are going to start
*/
#Override
public void onReceive(Context context, Intent intent) {
// Get extras from the notification intent
Bundle extras = intent.getExtras();
this.meeting = extras.getParcelable("MeetingParcel");
// build notification pending intent to go to the details page when click on the body of the notification
Intent notificationIntent = new Intent(context, MeetingDetails.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
notificationIntent.putExtra("MeetingParcel", meeting); // send meeting that we received to the MeetingDetails class
notificationIntent.putExtra("notificationIntent", true); // flag to know where the details screen is opening from
PendingIntent pIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
// build intents for the call now button
Intent phoneCall = Call._callIntent(meeting);
if (phoneCall != null) {
PendingIntent phoneCallIntent = PendingIntent.getActivity(context, 0, phoneCall, PendingIntent.FLAG_CANCEL_CURRENT);
int flags = Notification.FLAG_AUTO_CANCEL;
// build notification object
NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
Notification notification = builder.setContentTitle("Call In")
.setContentText(intent.getStringExtra("contextText"))
.setTicker("Call In Notification")
.setColor(ContextCompat.getColor(context, R.color.colorBluePrimary))
.setAutoCancel(true) // will remove notification from the status bar once is clicked
.setDefaults(Notification.DEFAULT_ALL) // Default vibration, default sound, default LED: requires VIBRATE permission
.setSmallIcon(R.drawable.icon_notifications)
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(meeting.description))
.addAction(R.drawable.icon_device, "Call Now", phoneCallIntent)
.setCategory(Notification.CATEGORY_EVENT) // handle notification as a calendar event
.setPriority(Notification.PRIORITY_HIGH) // this will show the notification floating. Priority is high because it is a time sensitive notification
.setContentIntent(pIntent).build();
notification.flags = flags;
// tell the notification manager to notify the user with our custom notification
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0, notification);
}
}
}

use this flag:
Notification.FLAG_AUTO_CANCEL
inside this:
int flags = Notification.FLAG_AUTO_CANCEL;
Notification notification = builder.build();
notification.flags = flags;
Documentation

Ok turns out it's a known problem already, and it needs extra code to be done (keeping reference to notification through id). Have no clue why API does not provide this, as it seems very logical to do. But anyways,
see this answer in stackoverflow:
When you called notify on the notification manager you gave it an id - that is the unique id you can use to access it later (this is from the notification manager:
notify(int id, Notification notification)
To cancel, you would call:
cancel(int id)
with the same id. So, basically, you need to keep track of the id or possibly put the id into a Bundle you add to the Intent inside the PendingIntent?

I faced this problem today, and found that FLAG_AUTO_CANCEL and setAutoCanel(true), both work when click on notification,
but not work for action click
so simply, in the target service or activity of action, cancel the notification
NotificationManager manager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
manager.cancelAll();
or if have more notification
manager.cancel(notificationId);

You have created two pending intent use in boths and change Flag too.
PendingIntent pIntent = PendingIntent.getActivity(context, (int) System.currentTimeMillis(), notificationIntent, 0);
PendingIntent phoneCallIntent = PendingIntent.getActivity(context, (int) System.currentTimeMillis(), phoneCall, PendingIntent.FLAG_UPDATE_CURRENT);
// CHANGE TO THIS LINE
PendingIntent pIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
PendingIntent phoneCallIntent = PendingIntent.getActivity(context, 0, phoneCall, PendingIntent.FLAG_CANCEL_CURRENT);

how to show only one notification at a time for android application

I use the following code to show the notifications
private void SendNotification(String notificationTitle, String notificationMessage)
{
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
android.app.Notification notification = new android.app.Notification(R.drawable.ic_launcher, notificationMessage,
System.currentTimeMillis());
Intent notificationIntent = new Intent(this, MainActivity.class);
notificationIntent.putExtra("notif_id", "5100");
//Setting the single top property of the notification and intent.
notification.flags = Notification.FLAG_ONGOING_EVENT | Notification.FLAG_AUTO_CANCEL | Notification.FLAG_SHOW_LIGHTS;
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
notification.setLatestEventInfo(MainActivity.this, notificationTitle, notificationMessage, pendingIntent);
notificationManager.notify((int)System.currentTimeMillis(), notification);
}
Each time a new notification comes, the previous one should be removed and the new one should be shown.
Any clues will be helpful.
Thanx in advance
o.

You are generatting a notification with different id each time (System.currentTimeMillis()), change it for a single ID.
notificationManager.notify(0, notification);
Post a notification to be shown in the status bar. If a notification with the same id has already been posted by your application and has not yet been canceled, it will be replaced by the updated information.
NotificationManager.html

There is one way that you should clear all Notification of your Application before you post a newer one.
Give it a shot like,
notificationManager.cancelAll();
To clear a particular Notification you can do it like,
notificationManager.cancel(notification_id);

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);
}

Click on status bar notification and show details?

I wrote an app that saves local notification at specific time in future and when that time is reached it shows notification in status bar even if the app is not running. My question is: it is possible to show some additional information to user when he clicks on notification in status bar?

Yes it is possible to display additional information when user taps on that particular notification. While writing code to display notification, you will find one setLatestEventInfo method. Use it. Its exactly what you need.
public void createNotification(View view) {
NotificationManager notificationManager = (NotificationManager)
getSystemService(NOTIFICATION_SERVICE);
Notification notification = new Notification(R.drawable.icon,
"A new notification", System.currentTimeMillis());
// Hide the notification after its selected
notification.flags |= Notification.FLAG_AUTO_CANCEL;
Intent intent = new Intent(this, NotificationReceiver.class);
PendingIntent activity = PendingIntent.getActivity(this, 0, intent, 0);
notification.setLatestEventInfo(this, "This is the title",
"This is the text", activity);
notification.number += 1;
notificationManager.notify(0, notification);
}

Notification throwing intents without it's extras

I am trying to launch an intent from a notification, but for a reason I don't know the extra is not always sent with the intent.
This is where I create the intent :
NotificationManager notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(R.drawable.icon,
mContext.getString(R.string.text), 0);
Intent intents = new Intent(mContext, DataAppTabs.class);
intents.putExtra(DataAppTabs.REQUEST, DataAppTabs.REQUEST_DMTAB);
intents.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent launchIntent = PendingIntent.getActivity(mContext.getApplicationContext(), DataAppTabs.REQUEST_DMTAB, intents, PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(mContext, "Info", mContext.getString(R.string.enginedmnotification_rebootneeded), launchIntent);
notification.flags = Notification.FLAG_NO_CLEAR;
notification.flags |= Notification.FLAG_ONLY_ALERT_ONCE;
notification.defaults = Notification.DEFAULT_ALL;
notificationManager.notify(DataAppTabs.REQUEST_DMTAB, notification);
In the DataAppTabs class I overrided onCreate() and onNewIntent(). When the notification appears, if I click on it it opens the correct Activity (DataAppTabs, which is a TabActivity), it triggers onCreate or onNewIntent if the activity was already started, but the extra "REQUEST" is not always set (getExtras() is sometimes null).
I have found the same question here with answers telling me I had to use the "FLAG_ACTIVITY_SINGLE_TOP" flag, but it still doesn't work all the time and I am not able to reproduce the problem every time.
Is it something I did wrong ?
Thanks

// Displaying Notification
NotificationManager manager = (NotificationManager)this.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(R.drawable.icon, "MyNotification", System.currentTimeMillis());
PendingIntent contentIntent = PendingIntent.getActivity(getApplicationContext(), 0, new Intent(getApplicationContext(), Sample.class), 0);
notification.setLatestEventInfo(getApplicationContext(), "Notification Title", "Notification Data", contentIntent);
notification.flags = Notification.FLAG_INSISTENT;
int NOTIFICATION_ID=(int)System.currentTimeMillis();
manager.notify(NOTIFICATION_ID, notification);
// Sample.class is the activity to which you want to go when you click on Notification