Develop Reference

ChatApp: Multiline Notifications

I am creating a Chat Application with Firebase. I send Notifications with Firebase Cloud Functions and recieve them on my phone. But for every message I get a new notification. And now I want to know if it is possible to create a Notification like in WhatsApp, with multible lines for each message in one Notification. My Code for a Notification:
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
String notification_tag = remoteMessage.getData().get("senderUiD");
Intent intent = new Intent(getApplicationContext(), Chat_Room.class);
PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent, 0);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(getApplicationContext())
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle(remoteMessage.getData().get("username"))
.setContentText(remoteMessage.getNotification().getBody())
.setVibrate(new long[]{1500, 0, 1500, 0})
.setLights(Color.BLUE, 2000, 1000)
.setWhen(remoteMessage.getSentTime())
.setAutoCancel(true)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setStyle(new NotificationCompat.BigTextStyle().bigText(remoteMessage.getNotification().getBody()))
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setContentIntent(pendingIntent);
notificationManager.notify(notification_tag, 0, notificationBuilder.build());
Thanks for your help ;)

When You Are Receiving Notification Message Your Notification In override last Notification
generate Rendam number
Random ran = new Random();
int notification_tag = r`an.nextInt(6) + 5;`
notificationManager.notify(notification_tag, 0, notificationBuilder.build());
also, fallow few step for grouping notification
NotificationCompat.Builder:contains the UI specification and action information
NotificationCompat.Builder.build() :used to create notification (Which returns Notification object)
Notification.InboxStyle: used to group the notifications belongs to same ID
NotificationManager.notify():to issue the notification.

Deleting notification from Android notification bar

I'm using the following to code to send a notification:
NotificationCompat.Builder builder =
new NotificationCompat.Builder(getBaseContext())
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle("Title")
.setContentText("Message");
int NOTIFICATION_ID = 12345;
Intent targetIntent = new Intent(getBaseContext(), MainActivity4.class);
PendingIntent contentIntent = PendingIntent.getActivity(getBaseContext(), 0, targetIntent, PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(contentIntent);
NotificationManager nManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
nManager.notify(NOTIFICATION_ID, builder.build());
The code works as I expected except for one little thing, once I go to the notification bar, expand it and choose the notification, it keeps staying on the notification bar, opposite to the behavior of most notifications, than once you tap them they disappear from being there.
Guess it must be some option in the configuration of the notification but as much as I search I cannot find it.
Hope you can help.

Are you looking for this?
.setAutoCancel(true)
so you would have
NotificationCompat.Builder builder =
new NotificationCompat.Builder(getBaseContext())
.setSmallIcon(R.drawable.notification_icon)
.setAutoCancel(true)
.setContentTitle("Title")
.setContentText("Message");

Update Notification without Collasping notification drawer

i have a notification manager that launches an activity when clicked.
mBuilder =
new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_launcher)
.setOngoing(true)
.setOnlyAlertOnce(true)
.setPriority(NotificationCompat.PRIORITY_MAX)
.setContent(remoteViews)
.setAutoCancel(false);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, new Intent(context, Launch.class).putExtra("type", 0), 0);
mBuilder.setContentIntent(pendingIntent);
the function performed in this can also be be asynchronous depending on the users preference. I want to update the notification to an ongoing progress. something of this nature:
mBuilder =
new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_launcher)
.setOngoing(true)
.setContentTitle("Sending details")
.setPriority(NotificationCompat.PRIORITY_MAX)
.setProgress(100, 0, true)
.setOnlyAlertOnce(true)
.setAutoCancel(false);
when the notification is selected. This is achieved but what i want to do is update the notification from the former to the later without having to first slide up the navigation drawer.

Try this..
NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
you need NOTIFICATION_ID to updated the specific notification.
Please refer this

Android: continuously update text in the notification area

As Richard said in this question > Possible to continuously update text in the notification area? , I have the same issue here .
I want to update text in the notification area .
This question is answered and accepted , but the answer doesn't help me .
It's about to create text as bitmap dynamically and set it to Small Icon of notification .
But as Richard commented , the images for setSmallIcon must be predefined in the package.There is no ability to edit them on the fly.
Please kindly show me the right way to do this stuff .

It's quite simple to update your Notification.
First of all when you create it you must create it with an id.
NotificationManager mNotificationManager =(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Sets an ID for the notification, so it can be updated
int notifyID = 1;
mNotifyBuilder = new NotificationCompat.Builder(this)
.setContentTitle("Title")
.setContentText("Text")
.setSmallIcon(R.drawable.ic_notify);
mNotificationManager.notify(
notifyID,
mNotifyBuilder.build());
Now to update your Notification you only need to notify the new notification with the old id and this will be updated (you don't need to reset the paraneter you don't want to update).
mNotifyBuilder.setContentText(setContentText("New Text")
mNotifyBuilder.setSmallIcon(R.drawable.ic_new_notify);
//this update your notification
mNotificationManager.notify(
notifyID,
mNotifyBuilder.build());

I tried to make one but it has one disadvantage is that, it has one empty notification in notification drawer,
public static int when = 0;
private void generateNotification(Context context) {
Log.i(TAG, "generateNotification");
Intent notificationIntent = new Intent(context, MainActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(
this.getApplicationContext(), 0, notificationIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mNotification = new NotificationCompat.Builder(
this)
// .setContentTitle("AppName")
// .setContentText("Message For Notification Drawer")
// .setSound(soundUri)
// .setDefaults(Notification.DEFAULT_SOUND)
// .setVibrate(new long[] { 1000, 1000 })
// .addAction(R.drawable.ic_launcher, "View", pIntent)
// .addAction(0, "Remind", pIntent)
// .setNumber(fCount)
// .setWhen(when)
.setSmallIcon(R.drawable.ic_launcher)
.setTicker(Integer.toString(when)) // Set String you want
.setAutoCancel(true)
.setContentIntent(pIntent);
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
// notificationManager.notify(when, mNotification.build());
notificationManager.notify(1, mNotification.build());
when++;
}

Dismiss Android push Notifications

Some question about push notifications. How do I dissmis all the notifications of my app when I press one of them? Also ... how do I dissmiss the noifications if I start the app (not from the noification)?
Here is how I send a notification from my GcmIntentService class (if it is helpfull).
private void sendNotification(Bundle extras) {
mNotificationManager = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
NOTIFICATION_ID = Integer.parseInt(extras.getString("id"));
Intent in = new Intent(this, PushActivity.class);
in.putExtras(extras);
in.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
String msg = extras.getString("msj");
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
in, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("MY TITLE")
.setAutoCancel(true)
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(msg))
.setContentText(msg);
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}

I'm not sure if the notifications you are putting out are for the same event, if so you can do what is called "stacking notifications" like Gmail does when you get a second or third email. It's all in the one notification and therefore will go away as one. This is only compatible above 4.1.
This is the code Google gives along with the stacking. This any help?
mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Sets an ID for the notification, so it can be updated
int notifyID = 1;
mNotifyBuilder = new NotificationCompat.Builder(this)
.setContentTitle("New Message")
.setContentText("You've received new messages.")
.setSmallIcon(R.drawable.ic_notify_status)
numMessages = 0;
// Start of a loop that processes data and then notifies the user
...
mNotifyBuilder.setContentText(currentText)
.setNumber(++numMessages);
// Because the ID remains unchanged, the existing notification is
// updated.
mNotificationManager.notify(
notifyID,
mNotifyBuilder.build());

try android.app.NotificationManager.cancelAll()