Develop Reference

Notification not showing in android Oreo when I use .setStyle

When creating a notification in android Oreo everything works until I use .setStyle then it stops working
Code:
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
Intent intent = new Intent();
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
NotificationManager notificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
int importance = NotificationManager.IMPORTANCE_HIGH;
{
NotificationChannel mChannel = new NotificationChannel(
CHANNEL_ID, NOTIFICATION_CHANNEL_NAME, importance);
assert notificationManager != null;
notificationManager.createNotificationChannel(mChannel);
}
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context, CHANNEL_ID)
.setContentTitle(track.getTitle())
.setContentText(track.getArtist())
.setSmallIcon(R.drawable.icon)
.setOnlyAlertOnce(true)//show notification for only first time
.setLights(Color.CYAN, 500, 1200) //Setting the color of the led blink on the phone for notifications
.addAction(drw_previous, "Previous", pendingIntentPrevious) //Setting action for the previous button
.addAction(playbutton, "Play", pendingIntentPlay) //Setting the action for the play/pause button
.addAction(drw_next, "Next", pendingIntentNext) //Setting the action for he next button
.setDeleteIntent(pendingIntentDelete) //Setting delete intent for when the notification is destroyed/deleted
.setStyle(new androidx.media.app.NotificationCompat.MediaStyle()
.setShowActionsInCompactView(0, 1, 2)
.setMediaSession(mediaSessionCompat.getSessionToken())) //Setting how and what order the buttons will be shown
.setShowWhen(false) //Do not show time for when this notification was created
.setDefaults(Notification.DEFAULT_ALL); //Defaults
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addNextIntent(intent);
PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
notificationManager.notify((int) System.currentTimeMillis(), mBuilder.build());
}
Am I missing something. I have everything that should make it work. It used to work, but I am revisiting code changing it and making it better and not sure what went wrong this time. Your help is appreciated!

Heads up notification not showing in android O and higher

I literally have tried everything seriously every method and every snippet but still, I was not able to show heads-up notifications on Chinese brand devices.
so yesterday I thought why not try it again but after all again still I'm not able to show heads-up notification until I manually goto the app into the settings and give floating permission for the app.
Now most of you may say why not to navigate the user to the setting when he/she first opens up the app but nobody likes that even there are other apps (I'm not talking about white list app like WhatsApp) which have 10K downloads are able to show heads up notification
Here is my code, btw I have tried setting the sound, vibration, and light but still heads up are not showing, and yes I do uninstall my app after every build
public void showNotification(View v){
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
NotificationChannel nc = new NotificationChannel("n","pop up notification", NotificationManager.IMPORTANCE_HIGH);
nc.enableLights(true);
nc.setLightColor(Color.BLUE);
nc.enableVibration(true);
nc.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
NotificationManager nm = getSystemService(NotificationManager.class);
nm.createNotificationChannel(nc);
}
Notification.Builder notification = null;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
notification = new Notification.Builder(this,"n")
.setContentTitle("Pop up notification")
.setSmallIcon(R.drawable.ic_launcher_background);
}else{
notification = new Notification.Builder(this)
.setContentTitle("Pop up notification")
// .setPriority(Notification.PRIORITY_MAX)
.setSmallIcon(R.drawable.ic_launcher_background);
}
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1,notification.build());
}

I have two solutions. Try them out and see if any works.
Yours actually works Like this
public void showNotification(){
if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O){
NotificationChannel nc = new NotificationChannel("n","pop up notification", NotificationManager.IMPORTANCE_HIGH);
nc.enableLights(true);
nc.setLightColor(Color.BLUE);
nc.enableVibration(true);
nc.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
NotificationManager nm = getSystemService(NotificationManager.class);
nm.createNotificationChannel(nc);
}
Notification.Builder notification = null;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
notification = new Notification.Builder(this,"n")
.setContentTitle("Pop up notification")
.setSmallIcon(R.drawable.alex);
}else{
notification = new Notification.Builder(this)
.setContentTitle("Pop up notification")
//.setPriority(Notification.PRIORITY_MAX)
.setSmallIcon(R.drawable.alex);
}
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(1,notification.build());
Mine notifyUser("Order Delivery", "Your order has arrived"):
public void notifyUser(String title, String text){
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, "notify_001");
Intent intent = new Intent(this, ActivityToOpenWhenNotificationIsTapped.class);
intent.setAction("android.intent.action.MAIN");
intent.addCategory("android.intent.category.LAUNCHER");
intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);
PendingIntent activity = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.BigTextStyle bigTextStyle = new NotificationCompat.BigTextStyle();
bigTextStyle.setBigContentTitle(title);
bigTextStyle.bigText(text);
bigTextStyle.setSummaryText("Big summary text. Comment if you want.");
builder.setAutoCancel(true);
builder.setContentIntent(activity);
builder.setContentTitle(title);
builder.setContentText(text);
builder.setPriority(1);
builder.setSmallIcon(R.drawable.alex);
builder.setLargeIcon(BitmapFactory.decodeResource(this.getResources(), R.drawable.alex));
builder.setStyle(bigTextStyle);
builder.setAutoCancel(true);
builder.setSound(Settings.System.DEFAULT_NOTIFICATION_URI);
builder.setGroup("Pixels");
Notification build = builder.build();
build.flags |= 16;
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= 26) {
String str3 = "Pixels_V1.0";
notificationManager.createNotificationChannel(new NotificationChannel(str3, "Pixels Notification", NotificationManager.IMPORTANCE_DEFAULT));
builder.setChannelId(str3);
}
int NOTIFICATION_ID = new Random(System.currentTimeMillis()).nextInt(1000);
notificationManager.notify(NOTIFICATION_ID, builder.build());
}

Android: Notification that requires user interaction / input

I'm programming some Android App that must make some Notification/Alarm after event occurs. Im wondering is there any function for NotificationManager like requireInteraction()?
Now when the certain event occurs the app just shows one notification for 1 sec, that's it..i'd like user to click OK to stop this vibration/sound
I found some code for notification from here:
NotificationCompat.Builder deprecated in Android O
Thanks #Mehul
public void showNotification (String from, String notification,
Intent intent) {
int requestID = (int) System.currentTimeMillis();
PendingIntent pendingIntent = PendingIntent.getActivity(
context,
requestID,
intent,
PendingIntent.FLAG_UPDATE_CURRENT
);
String NOTIFICATION_CHANNEL_ID = "my_channel_id_01";
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "My Notifications", NotificationManager.IMPORTANCE_DEFAULT);
// Configure the notification channel.
notificationChannel.setDescription("Channel description");
notificationChannel.enableLights(true);
notificationChannel.setLightColor(Color.RED);
notificationChannel.setVibrationPattern(new long[]{0, 1000, 500, 1000});
notificationChannel.enableVibration(true);
notificationManager.createNotificationChannel(notificationChannel);
}
NotificationCompat.Builder builder = new NotificationCompat.Builder(context, NOTIFICATION_CHANNEL_ID);
Notification mNotification = builder
.setContentTitle(from)
.setContentText(notification)
.setContentIntent(pendingIntent)
.setAutoCancel(true)
.setSmallIcon(R.mipmap.ic_launcher)
.setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_launcher))
.build();
notificationManager.notify(/*notification id*/requestID, mNotification);
}
This one shows notification and it doesnt wait for user Input

If there is a need to add the buttons or action after clicking on notification you can use in your builder:
To add an button:
.addAction(new NotificationCompat.Action(*icon*, "Title", *intent for notification*));
or to add action that happen after user click the notification
.setContentIntent(*intent*);
Check the documentation about tab action and actions if you need more details.

How to create a chronometer in a notification Android?

I have the following method below:
public NotificationCompat.Builder createNotification(Context context) {
Intent intent = new Intent(this, MapsActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent, 0);
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
boolean running = true;
builder = new NotificationCompat.Builder(context)
.setContentText("conteúdo")
.setContentTitle("titulo")
.setSmallIcon(R.drawable.ic_today_black_24dp)
.setAutoCancel(false)
.setOnlyAlertOnce(true)
.setOngoing(running)
.setContentIntent(
PendingIntent.getActivity(context, 10,
new Intent(context, MapsActivity.class)
.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP),
0)
)
.addAction(running ? R.drawable.ic_stop_black_24dp
: R.drawable.ic_play_arrow_black_24dp,
running ? "Pause"
: "play",
pIntent)
.addAction(R.drawable.ic_stop_black_24dp, "Stop",
pIntent);
notificationManager.notify(0, builder.build());
return builder;
}
In which launched a notification in the status bar, as shown below in the first notification:
To link the notification I do this:
NotificationCompat.Builder notification = createNotification(this);
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(0, notification.build());
I would like to create a Chronometer in a notification, exactly as it appears in the Strava notification (second notification of the image), as shown above.
How to create a Chronometer in a notification?

So creating the App Widget layout is simple if you know how to work with Layouts. However, you have to be aware that App Widget layouts are based on RemoteViews, which do not support every kind of layout or view widget. Anyway if you need asistance with App Widget layout here is some guaidance:
https://developer.android.com/guide/practices/ui_guidelines/widget_design.html
Luckily for you RemoteViews support Chronometer as you can see from developer webiste: https://developer.android.com/guide/topics/appwidgets/index.html#CreatingLayout
A think you can acces your Chronometer as usually and you could do something like this depends do you want it to pause, resume, whatever:
remoteView.setChronometer(R.id.myChronometere, SystemClock.elapsedRealtime(),
null, false); //pausing

You can use built in chronometer:
builder = new NotificationCompat.Builder(context)
builder.setUsesChronometer(true)
...
builder.build()

Android - GCM push notifications not appearing in notifications list

I'm working on my first Android app to use the Google Cloud Messaging (GCM) service for push notifications. I've got to the point where I can successfully send a message from my server application, and log the content of the message in the onMessage event within my GCMIntentService class on the client app. However I don't see any visual indication on the device that a message was received. I was expecting the message to appear in the pull-down notifications list on the phone, as it does on the iPhone. Does this have to be coded manually? Also is there a common method for displaying the message regardless of which activity is currently active, and if the app is idle in the background? Any help appreciated.

This code will generate a notification in the android system bar at the top of the screen. This code will create a new intent that will direct the user to a "Home.class" after clicking on the notification in the top bar. If you would like it to do something specific based on the current activity you could send broadcast requests from the GCMIntentService to your other activities.
Intent notificationIntent=new Intent(context, Home.class);
generateNotification(context, message, notificationIntent);
private static void generateNotification(Context context, String message, Intent notificationIntent) {
int icon = R.drawable.icon;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
// set intent so it does not start a new activity
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |
Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent =PendingIntent.getActivity(context, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(0, notification);
}
Note that this example uses resources in R.drawable and R.String that will need to be present to work but it should give you the idea. See this for more information about status notifications http://developer.android.com/guide/topics/ui/notifiers/index.html and this about broadcast recievers. http://developer.android.com/reference/android/content/BroadcastReceiver.html

If you are using GcmListenerService you can use this code, add to your onMessageReceived the sendNotification()
#Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("message");
sendNotification(message);
}
private void sendNotification(String message) {
Intent intent = new Intent(this, YOURCLASS.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_park_notification)
.setContentTitle("Ppillo Message")
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}