Develop Reference

Notification Manager creates only one notification channel but i need to create three channels

in my application, i have created 3 notification channels (Follow, Comment, Like) to receive notifications from Firebase Cloud Messaging.
When i run app and go to Settings > Apps > My App > App Notifications , I found it show only one notification channel (ex. Follow channel) and other two channels are't be shown ...
But when i receive notification from Comment channel for example, it updates current channel with Comment channel and when i receive notification from Like channel, it updates current channel with Like channel and so on..
so why it doesn't show three channels as separated channels at same time ?!
Here is Code I work with:
public class MyFireBaseMessagingService extends FirebaseMessagingService {
String title, content, type;
#Override
public void onMessageReceived(#NonNull RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
title = remoteMessage.getData().get("Notif_Title");
content= remoteMessage.getData().get("Notif_Content");
type = remoteMessage.getData().get("Type");
if (type.equals("Follow")) {
NotificationManager manager1 = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Intent result = new Intent(this, MainActivity.class);
PendingIntent resultPendingIntent = PendingIntent.getActivity(this, 0, result, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder builder = new NotificationCompat.Builder(getApplicationContext())
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle(title)
.setContentText(postContent)
.setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
.setContentIntent(resultPendingIntent)
//to work on android 8 and high..
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
builder.setChannelId("YOUR_PACKAGE_NAME");
builder.setSmallIcon(R.drawable.logo);
NotificationChannel channel = new NotificationChannel(
"YOUR_PACKAGE_NAME",
"Follow",
NotificationManager.IMPORTANCE_HIGH);
manager1.createNotificationChannel(channel);
}
manager1.notify(0, builder.build());
} else if (type.equals("Comment")) {
NotificationManager manager2 = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Intent result = new Intent(this, MainActivity.class);
PendingIntent resultPendingIntent = PendingIntent.getActivity(this, 1, result, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder builder = new NotificationCompat.Builder(getApplicationContext())
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle(title)
.setContentText(content)
.setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
.setContentIntent(resultPendingIntent)
//to work on android 8 and high..
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
builder.setChannelId("YOUR_PACKAGE_NAME");
builder.setSmallIcon(R.drawable.logo);
NotificationChannel channel = new NotificationChannel(
"YOUR_PACKAGE_NAME",
"Comment",
NotificationManager.IMPORTANCE_HIGH);
manager3.createNotificationChannel(channel);
}
manager3.notify(1, builder.build());
} else if (type.equals("Like")) {
Intent result = new Intent(this, MainActivity.class);
PendingIntent resultPendingIntent = PendingIntent.getActivity(this, 2, result, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationManager manager3 = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NotificationCompat.Builder builder = new NotificationCompat.Builder(getApplicationContext())
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle(title))
.setContentText(content)
.setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
.setContentIntent(resultPendingIntent)
//to work on android 8 and high..
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
builder.setChannelId("YOUR_PACKAGE_NAME");
builder.setSmallIcon(R.drawable.logo);
NotificationChannel channel = new NotificationChannel(
"YOUR_PACKAGE_NAME",
"Like",
NotificationManager.IMPORTANCE_HIGH);
manager3.createNotificationChannel(channel);
}
manager3.notify(2, builder.build());
}
}
}
Can Anyone help me...

I know how to solve it ...
You should change this code
builder.setChannelId("YOUR_PACKAGE_NAME");
builder.setSmallIcon(R.drawable.logo);
Into specific channel id to each one like :
builder.setChannelId("com.myapp.first_notification");
builder.setSmallIcon(R.drawable.logo);

how to display the notification bar?

My program did not show the notificaion bar in android compilesdk28. My code is below. How can I solve this and how do I display the notification in All mobiles?
final String url = userDetailsItem.getIp();
System.out.println("url..."+url);
if (Remaindays .equals("53"))
System.out.println("url..."+url);
{
Context context = null;
String CHANNEL_ID = createNotificationChannel(context);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this,CHANNEL_ID)
.setSmallIcon(R.drawable.lesr)
.setContentTitle("my app")
.setContentText(""+url)
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(Remaindays+"Days "))
.setPriority(NotificationCompat.PRIORITY_DEFAULT);
}
public static String createNotificationChannel(Context context) {
// NotificationChannels are required for Notifications on O (API 26) and above.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// The id of the channel.
String CHANNEL_ID = "Channel_id";
// The user-visible name of the channel.
CharSequence channelName = "Application_name";
// The user-visible description of the channel.
String channelDescription = "Application_name Alert";
int channelImportance = NotificationManager.IMPORTANCE_DEFAULT;
boolean channelEnableVibrate = true;
// int channelLockscreenVisibility = Notification.;
// Initializes NotificationChannel.
NotificationChannel notificationChannel = new NotificationChannel(CHANNEL_ID, channelName, channelImportance);
notificationChannel.setDescription(channelDescription);
notificationChannel.enableVibration(channelEnableVibrate);
// notificationChannel.setLockscreenVisibility(channelLockscreenVisibility);
// Adds NotificationChannel to system. Attempting to create an existing notification
// channel with its original values performs no operation, so it's safe to perform the
// below sequence.
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
assert notificationManager != null;
notificationManager.createNotificationChannel(notificationChannel);
return CHANNEL_ID;
} else {
// Returns null for pre-O (26) devices.
return null;
}
}

API => 28 requires Notification Channel
https://developer.android.com/reference/android/app/NotificationChannel
if you want video links
https://www.youtube.com/watch?v=tTbd1Mfi-Sk
Template:
Uri defaultSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Intent intent = new Intent(getApplicationContext(), DummychatActivty.class);
intent.putExtra("user_id", Config.to_user_id);
intent.putExtra("profile_img_Url", Config.profile_img_Url);
intent.putExtra("user_name", Config.to_user_name);
intent.putExtra("user_image_url", Config.to_user_image_url);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
String CHAT_NOTIFICATION_CHANNEL_ID = "101";
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
#SuppressLint("WrongConstant") NotificationChannel Chat_notificationChannel = new NotificationChannel(CHAT_NOTIFICATION_CHANNEL_ID, "Chat Notifications", NotificationManager.IMPORTANCE_MAX);
//Configure Notification Channel
// notificationChannel.setDescription("General Notifications");
Chat_notificationChannel.setLightColor(Color.RED);
Chat_notificationChannel.enableLights(true);
Chat_notificationChannel.setVibrationPattern(new long[]{0, 1000, 500, 1000});
Chat_notificationChannel.enableVibration(true);
notificationManager.createNotificationChannel(Chat_notificationChannel);
}
NotificationCompat.Builder chat_notificationBuilder = new NotificationCompat.Builder(getApplicationContext(), CHAT_NOTIFICATION_CHANNEL_ID)
.setVibrate(new long[]{0, 100})
.setPriority(Notification.PRIORITY_MAX)
.setLights(Color.RED, 3000, 3000)
.setAutoCancel(true)
.setContentTitle(Config.fcm_headline)
.setContentIntent(pendingIntent)
.setWhen(System.currentTimeMillis())
.setColor(getResources().getColor(R.color.colorPrimary))
.setSmallIcon(R.drawable.push)
.setLargeIcon(bitmap)
.setGroup("CHAT")
.setContentText(Config.content)
.setAutoCancel(true)
.setSound(defaultSound);
chat_push_count = chat_push_count + 1;
notificationManager.notify(chat_push_count, chat_notificationBuilder.build());
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
chat_notificationBuilder.setChannelId("101");
}

private void sendNotification(Notification nobj) {
Intent intent = new Intent(context, NotificationActivity.class);
intent.putExtra("Notification", "click");
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri =
RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Ringtone r = RingtoneManager.getRingtone(context, defaultSoundUri);
r.play();
NotificationCompat.Builder notificationBuilder = new
NotificationCompat.Builder(context)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle(Html.fromHtml(nobj.title))
.setContentText(Html.fromHtml(nobj.desc))
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setChannelId("my_channel_01")
.setContentIntent(pendingIntent);
generateNotification(notificationBuilder);
}
Please check this you can get help , its working code in my live project
public void generateNotification(NotificationCompat.Builder notificationBuilder) {
NotificationManager notificationManager =
(NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
String CHANNEL_ID = "my_channel_01";
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
CharSequence name = context.getString(R.string.app_name);
// The user-visible name of the channel.
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name,
importance);
// Create a notification and set the notification channel.
notificationManager.createNotificationChannel(mChannel);
}
PreferenceHelper preferenceHelper = PreferenceHelper.getInstance(context);
preferenceHelper.setNotificationId(preferenceHelper.getNotificationId() + 1);
notificationManager.notify(preferenceHelper.getNotificationId(),
notificationBuilder.build());
}

How to make Notification appear on the phone for Android Studio?

I want to create a push notification where Admin can send notification to all users. I found a tutorial and follow it but it doesn't work. I'm not sure where I did wrong but I got error that said
Developer Warning for package "... " Failed to post notification on channel "null"
b1.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String tittle = ed1.getText().toString().trim();
String subject = ed2.getText().toString().trim();
String body = ed3.getText().toString().trim();
NotificationManager notif = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Notification notify = new Notification.Builder
(getApplicationContext()).setContentTitle(tittle).setContentText(body).
setContentTitle(subject).setSmallIcon(R.drawable.ps).build();
notify.flags |= Notification.FLAG_AUTO_CANCEL;
notif.notify(0, notify);
}
});

After Oreo SDK you have to create Notification channel in order to show a notification, check this method for reference:
/**
*
* #param context
* #param title --> title to show
* #param message --> details to show
* #param intent --> What should happen on clicking the notification
* #param reqCode --> unique code for the notification
*/
public void showNotification(Context context, String title, String message, Intent intent, int reqCode) {
SharedPreferenceManager sharedPreferenceManager = SharedPreferenceManager.getInstance(context);
PendingIntent pendingIntent = PendingIntent.getActivity(context, reqCode, intent, PendingIntent.FLAG_ONE_SHOT);
String CHANNEL_ID = "channel_name";// The id of the channel.
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(context, CHANNEL_ID)
.setSmallIcon(R.mipmap.notification_logo)
.setContentTitle(title)
.setContentText(message)
.setAutoCancel(true)
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setContentIntent(pendingIntent);
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
CharSequence name = "Channel Name";// The user-visible name of the channel.
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);
notificationManager.createNotificationChannel(mChannel);
}
notificationManager.notify(reqCode, notificationBuilder.build()); // 0 is the request code, it should be unique id
Log.d("showNotification", "showNotification: " + reqCode);
}
How to use this method:
int reqCode = 1;
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
showNotification(this, "Title", "This is the message to display", intent, reqCode);

public void sendNotification (String message, String title ){
Intent intent = new Intent(getApplicationContext(), CampaignActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 , intent,
PendingIntent.FLAG_IMMUTABLE);
String channelId = "some_channel_id";
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.mipmap.ic_launcher_round)
// .setContentTitle(getString(R.string.app_name)
.setContentTitle(title)
.setContentText(message)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId,
"Channel human readable title",
NotificationManager.IMPORTANCE_DEFAULT);
assert notificationManager != null;
notificationManager.createNotificationChannel(channel);
}
assert notificationManager != null;
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}

o android notification sound is not playing

This is my code for making notification and notification is showing but not playing sound please help me to identify mistakes in my code and do we need any permission to play sound,vibrate for notification?
Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
AudioAttributes attributes = new AudioAttributes.Builder()
.setUsage(AudioAttributes.USAGE_NOTIFICATION)
.build();
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
String id = "my_channel_01";
CharSequence name = "oreiomilla";
String description ="i love me";
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationChannel mChannel = new NotificationChannel(id, name, importance);
mChannel.setDescription(description);
mChannel.enableLights(true);
mChannel.setLightColor(Color.RED);
mChannel .setSound(alarmSound,attributes);
mChannel.enableVibration(true);
mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
mNotificationManager.createNotificationChannel(mChannel);
int notifyID = 1;
String CHANNEL_ID = "my_channel_01";
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent, 0);
Notification notification = new Notification.Builder(MainActivity.this)
.setContentTitle("New Message")
.setContentText("You've received new messages. "+ct)
.setSmallIcon(R.drawable.ic_app_icon)
.setChannelId(CHANNEL_ID) .setTicker("Showing button notification") //
.addAction(android.R.drawable.ic_dialog_alert, "Visit", pIntent) // accept notification button
.addAction(android.R.drawable.ic_dialog_email, "ignore", pIntent)
.build();
mNotificationManager.notify(notifyID, notification);

To set a sound to notifications in Oreo, you must set sound on NotificationChannel and not on Notification Builder itself. You can do this as follows
Uri sound = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + context.getPackageName() + "/" + R.raw.notification_mp3);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel mChannel = new NotificationChannel("YOUR_CHANNEL_ID",
"YOUR CHANNEL NAME",
NotificationManager.IMPORTANCE_DEFAULT)
AudioAttributes attributes = new AudioAttributes.Builder()
.setUsage(AudioAttributes.USAGE_NOTIFICATION)
.build();
NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID,
context.getString(R.string.app_name),
NotificationManager.IMPORTANCE_HIGH);
// Configure the notification channel.
mChannel.setDescription(msg);
mChannel.enableLights(true);
mChannel.enableVibration(true);
mChannel.setSound(sound, attributes); // This is IMPORTANT
if (mNotificationManager != null)
mNotificationManager.createNotificationChannel(mChannel);
}

Try this it will work for you.
private void BigTextNotificationForDays(Context context, String Message, String Author) {
Intent resultIntent = new Intent(context, SplashActivity.class);
resultIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(context, (int) Calendar.getInstance().getTimeInMillis(), resultIntent, PendingIntent.FLAG_ONE_SHOT);
//To set large icon in notification
// Bitmap icon1 = BitmapFactory.decodeResource(getResources(), R.drawable.big_image);
//Assign inbox style notification
NotificationCompat.BigTextStyle bigText = new NotificationCompat.BigTextStyle();
bigText.bigText(Message);
bigText.setBigContentTitle(context.getString(R.string.app_name));
bigText.setSummaryText(Author);
//build notification
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context,createNotificationChannel(context))
.setSmallIcon(R.drawable.ic_notification)
.setContentTitle(context.getString(R.string.app_name))
.setContentText(Message)
.setStyle(bigText)
.setLargeIcon(icon)
.setColor(ContextCompat.getColor(context, R.color.colorPrimary))
.setVibrate(new long[]{1000, 1000})
.setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
.setPriority(Notification.PRIORITY_HIGH)
.setAutoCancel(true)
.setContentIntent(pendingIntent);
//.setOngoing(true);
// Gets an instance of the LocalNotificationManager service
NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
//to post your notification to the notification bar
mNotificationManager.notify(3730, mBuilder.build()); // (int) System.currentTimeMillis() set instead of id. if at a time more notification require
}
public static String createNotificationChannel(Context context) {
// NotificationChannels are required for Notifications on O (API 26) and above.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// The id of the channel.
String channelId = "Channel_id";
// The user-visible name of the channel.
CharSequence channelName = "Application_name";
// The user-visible description of the channel.
String channelDescription = "Application_name Alert";
int channelImportance = NotificationManager.IMPORTANCE_DEFAULT;
boolean channelEnableVibrate = true;
// int channelLockscreenVisibility = Notification.;
// Initializes NotificationChannel.
NotificationChannel notificationChannel = new NotificationChannel(channelId, channelName, channelImportance);
notificationChannel.setDescription(channelDescription);
notificationChannel.enableVibration(channelEnableVibrate);
// notificationChannel.setLockscreenVisibility(channelLockscreenVisibility);
// Adds NotificationChannel to system. Attempting to create an existing notification
// channel with its original values performs no operation, so it's safe to perform the
// below sequence.
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
assert notificationManager != null;
notificationManager.createNotificationChannel(notificationChannel);
return channelId;
} else {
// Returns null for pre-O (26) devices.
return null;
}
}

Why startForeground not working? Notifications

I have a code for Notifications in JobService:
public class MyJobService extends JobService {
String NOTIFICATION_CHANNEL_ID = "Nilesh_channel";
#Override
public boolean onStartJob(JobParameters params) {
Intent medication = new Intent(this, Medication.class);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "Your Notifications",
NotificationManager.IMPORTANCE_HIGH);
notificationChannel.setDescription("");
notificationChannel.enableLights(true);
notificationChannel.setLightColor(Color.RED);
notificationChannel.enableVibration(true);
mNotificationManager.createNotificationChannel(notificationChannel);
}
// to diaplay notification in DND Mode
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = mNotificationManager.getNotificationChannel(NOTIFICATION_CHANNEL_ID);
channel.canBypassDnd();
}
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID);
notificationBuilder.setAutoCancel(true)
.setContentTitle(Medication.medication.get(i).getDrug())
.setContentText("Время приема " + Medication.medication.get(i).getTime())
.setDefaults(Notification.DEFAULT_ALL)
.setWhen(System.currentTimeMillis())
.setSmallIcon(R.drawable.logonotification)
.setAutoCancel(true);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addNextIntent(medication);
PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
notificationBuilder.setContentIntent(resultPendingIntent);
startForeground(1000, notificationBuilder.build());
mNotificationManager.notify(1000, notificationBuilder.build());
Toast.makeText(this, "Запуск сервиса", Toast.LENGTH_SHORT).show();
}
But line startForeground(1000, notificationBuilder.build()) not working, I have not see my notification in notification bar. If I deleting this line, notification is shown, but it is not foreground.
In Manifest - <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
How can I fix it?