Develop Reference

How to create notification after listview receives new data from an online JSON file?

I have an online JSON file that shows the latest country earthquakes, the listView adapter in my app receives data from this JSON file and the refresh is manually by user`s swipe, but now I am adding an automatic and timely basis refresh mode to my list, the questions is:
How can I create a system notification after a new quake is detected?

Write this below code for sending System notification in your app while your data is loaded from network request.
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
Notification notification = new Notification.Builder(getApplicationContext())
.setContentTitle("App Name / Title Message")
.setContentText("Description Message hat data is updated")
.setDefaults(Notification.DEFAULT_ALL)
.setSmallIcon(R.drawable.ic_notification_icon)
.setColor(getResources().getColor(R.color.icon_color))
.setPriority(Notification.PRIORITY_HIGH) // will show notification even you are in app
.setContentIntent(pIntent)
.setAutoCancel(true)
.build();
notification.flags |= Notification.FLAG_ONLY_ALERT_ONCE | Notification.FLAG_SHOW_LIGHTS;
NotificationManager notificationManager = (NotificationManager)
getApplicationContext().getSystemService(NOTIFICATION_SERVICE);
notificationManager.notify(1, notification);
//you can use unique identification int number for notificationID instead of 1
putting this code block will show notification.

Just build a Notification like this
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, CHANNEL_ID)
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle(textTitle)
.setContentText(textContent)
.setPriority(NotificationCompat.PRIORITY_DEFAULT);
And then just show it
NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
// notificationId is a unique int for each notification that you must define
notificationManager.notify(notificationId, mBuilder.build());
And for anything other extras check the official documentation
In order for this to work you somehow should push when a new earthquake happens to your phone. If you have backend, you can send a push notification through the cloud messaging.
If you don't have backend just create a background service and pull data every now and then and when data says new earthquake jsut follow the notification creation from above.

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.

BigTextStyle notifications not expanding from FirebaseMessagingService

I wrote the below method for showing FCM notification on my android 5.1 device. When I run the code inside a FirebaseMessagingService it is just giving single line notification , where if I run the same code inside my Activity its giving expandable notifications.
I basically need my long FCM text notifications to get expanded on notifications rather than showing partial notification text.
Any leads?
private void showNotif(String messageBody){
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
// Constructs the Builder object.
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(getApplicationContext())
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle(getString(R.string.app_name))
.setContentText(messageBody)
.setDefaults(Notification.DEFAULT_ALL) // requires VIBRATE permission
.setAutoCancel(true)
.setContentIntent(pendingIntent)
/*
* Sets the big view "big text" style and supplies the
* text (the user's reminder message) that will be displayed
* in the detail area of the expanded notification.
* These calls are ignored by the support library for
* pre-4.1 devices.
*/
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(messageBody));
// android.support.v4.app.NotificationManagerCompat mNotifManager = (NotificationManagerCompat) getSystemService(Context.NOTIFICATION_SERVICE);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// mId allows you to update the notification later on.
mNotificationManager.notify(0, mBuilder.build());
}

This should work .
Big Text notifcations are shown in normal mode when there are other notifications on top . Try to expand it while testing.

You need to creare notification using this method https://fcm.googleapis.com/fcm/send and not using firebase console and all would be ok

Android Insistent Notification Interrupted By SMS - How to make uninterruptable?

Short version:
I want to create a notification that is uninterruptible by all other notifications, SMS messages, etc until the user clears it.
Long version:
I'm using Firebase Cloud Messaging to send alerts to my phone. Messages are handled based on the topic, and I need to make the "alarm" messages repeat continuously until the notification is cleared by the user. This is currently accomplished by setting the notification with FLAG_INSISTENT, which loops the sound.
The problem is the insistent "alarm" notification is permanently stopped when a different notification or SMS comes through.
I would like to ignore all new notifications, or restart the alarm after the new notification plays. I've searched for a couple hours and tried several flags and settings, but can't figure out how to do it.
Here is the code I'm using to handle FCM messages and set the notifications:
public class MyFirebaseMessagingService extends FirebaseMessagingService {
#Override
public void onMessageReceived(RemoteMessage remoteMessage) {
if (remoteMessage.getData() != null){
String messageTopic= remoteMessage.getFrom();
String messageTitle = remoteMessage.getData().get("title");
String messageBody = remoteMessage.getData().get("message");
if (messageTopic.equals("/topics/news")) {
Intent intent = new Intent(this, MainScreenActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
Uri soundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_stat_news)
.setContentTitle(messageTitle)
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(soundUri)
.setContentIntent(pendingIntent)
.setPriority(Notification.PRIORITY_MAX);
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(30548, notificationBuilder.build());
}
else if (messageTopic.equals("/topics/alarm")) {
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(Uri.parse("http://www.example.com/alarm.php"));
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_stat_alarm)
.setContentTitle(messageTitle)
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(soundUri)
.setContentIntent(pendingIntent)
.setPriority(Notification.PRIORITY_MAX);
Notification mNotification = notificationBuilder.build();
mNotification.flags |= Notification.FLAG_INSISTENT;
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(30549, mNotification);
}
}
}
I may be able to prevent my own notifications from interrupting the alarm by ignoring them when the alarm notification ID (30549) is active (or create the new notification and then create the alarm again). However, SMS and notifications from other programs will still interrupt, so that wouldn't be a perfect solution.

I don't think you'll have luck with this, unfortunately. Android will not let you have a notification that takes full priority from my understanding.
However, in the Firebase console when you go to the notifications section and click advanced you can set the priority of a notification to High and set a sound.
Since it looks like you're writing the notification programmatically and setting priority to Max this will achieve the same affect.
Setting priority to high, from Google's documentation:
When a high-priority notification arrives (see right), it is presented to users for a short period of time with an expanded layout exposing possible actions.
After this period of time, the notification retreats to the notification shade. If a notification's priority is flagged as High, Max, or full-screen, it gets a heads-up notification
Also check out this SO for someone who's notification wouldn't go away when they wanted it to
here

Notifications in Moto Display

I created a notification and it works but not display in Moto Display when locked.
I changed Priority, Category etc with no effects.
I want this notification like messages or missed cals:
moto display
This runs as a service:
PendingIntent pendingIntent = PendingIntent.getActivity(this, requestCode /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.emblem2)
.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_help_red))
.setColor(getResources().getColor(R.color.colorFirst))
.setContentTitle(title)
.setContentText(location)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setShowWhen(true)
.setCategory(Notification.CATEGORY_ALARM)
.setLights(Color.YELLOW, 200, 200)
.setContentIntent(pendingIntent);
notificationBuilder.setVibrate((sharedPreferences.getBoolean("notifications_new_message_vibrate", false) ? new long[]{0, 300, 200, 300} : new long[]{}));
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(requestCode, notificationBuilder.build());

As pointed out by Marcin, Moto Display doesn't work with vector drawable in notification small icon. I had the same problem and changing the small icon resolved the issue.
It's sad that such a nice feature as Moto Display doesn't have a documentation pointing that out.

Notification notification = new Notification.Builder(context)
// Show controls on lock screen even when user hides sensitive content.
.setVisibility(Notification.VISIBILITY_PUBLIC)
.setSmallIcon(R.drawable.ic_stat_player)
// Add media control buttons that invoke intents in your media service
.addAction(R.drawable.ic_prev, "Previous", prevPendingIntent) // #0
.addAction(R.drawable.ic_pause, "Pause", pausePendingIntent) // #1
.addAction(R.drawable.ic_next, "Next", nextPendingIntent) // #2
// Apply the media style template
.setStyle(new Notification.MediaStyle()
.setShowActionsInCompactView(1 /* #1: pause button */)
.setMediaSession(mMediaSession.getSessionToken())
.setContentTitle("Wonderful music")
.setContentText("My Awesome Band")
.setLargeIcon(albumArtBitmap)
.build();
That worked in my Moto Z, maybe only work in Media mode.