Develop Reference

Android 8.1.0 MainActivity call without click on notification

I have shown push notification using firebase but I faced one issue - when app is open and any notification received then Main Activity oncreate() method automatically call without click on notification, so please anyone can help me for resolved this.
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent pendingIntent;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
pendingIntent = PendingIntent.getActivity(this, (int) (Math.random() * 100), intent, PendingIntent.FLAG_IMMUTABLE);
} else {
pendingIntent = PendingIntent.getActivity(this, (int) (Math.random() * 100), intent, PendingIntent.FLAG_UPDATE_CURRENT|PendingIntent.FLAG_IMMUTABLE);
}
String channelId = "channel-01";
String channelName = "Channel Name";
int importance = NotificationManager.IMPORTANCE_HIGH;
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, channelId)
.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher))
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle(jsonObject.getString("title"))
.setContentText(jsonObject.getString("body"))
.setAutoCancel(true)
.setNumber(jsonObject.getInt("badge"))
.setDefaults(Notification.DEFAULT_ALL)
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setBadgeIconType(NotificationCompat.BADGE_ICON_SMALL)
.setContentIntent(pendingIntent);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
notificationBuilder.setSmallIcon(R.drawable.ic_stat_notification);
notificationBuilder.setColor(getResources().getColor(R.color.sky_blue));
notificationBuilder.setFullScreenIntent(pendingIntent, true);
} else {
notificationBuilder.setSmallIcon(R.mipmap.ic_launcher);
}
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
notificationManager.createNotificationChannelGroup(new NotificationChannelGroup("chats", "Messages"));
NotificationChannel mChannel = new NotificationChannel(channelId, channelName, importance);
mChannel.setDescription("description");
mChannel.setShowBadge(true);
mChannel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
notificationManager.createNotificationChannel(mChannel);
}
int num = (int) System.currentTimeMillis();
notificationManager.notify(num, notificationBuilder.build());

you can do the same using
BroadcastReceiver (android.content.BroadcastReceiver)
And background services (android.app.Service)

Notifications not pushed with android 10

I am working on Android App with Firebase notification service FCM. and I recives notification successfully. but after I recive it is not showin in Android 10 (it work in 9 and 8 and smaller versions).
This is my showing notification code, I dont know what I missed. I check about if there is any changed with 10 but I dont see that...
My method:
private void sendNotification(String messageBody, String title) {
Intent intent;
if(type.equals("order_pending") || type.equals("order_declined")){
intent = new Intent(this, myOrdersActivity.class);
}else { intent = new Intent(this, MainActivity.class); }
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
String channelId = getString(R.string.default_notification_channel_id);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.logo)
.setContentTitle(title)
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
int f =0;
// 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_HIGH);
notificationManager.createNotificationChannel(channel);
}
// EventBus.getDefault().post(eventObject);
if (PreferenceManager.getDefaultSharedPreferences(this).getBoolean("isActive", true)) {
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
Intent dialogIntent = new Intent(this, MainActivity.class)
.putExtra("ac", "1");
// sendBroadcast(dialogIntent);
dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
f =1;
// startActivity(dialogIntent);
}
if(f==0) {
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
}
Any help please?
and Thanks

The ship has sailed, but:
worked skeleton (Java):
void sendNotif(int icon, String sText) {
String channel_id = "1002";
String sTitle = getString(R.string.app_name);
Intent notificationIntent = new Intent(this, activityMain.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
// Android 8.0 (API level 26) and higher
// https://developer.android.com/training/notify-user/build-notification
CharSequence name = "statusbar";
String description = getString(R.string.app_name);
int importance = NotificationManager.IMPORTANCE_DEFAULT;
NotificationChannel channel = new NotificationChannel(channel_id, name, importance);
channel.setDescription(description);
// Register the channel with the system; you can't change the importance
// or other notification behaviors after this
NotificationManager notificationManager = getSystemService(NotificationManager.class);
notificationManager.createNotificationChannel(channel);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, channel_id)
.setSmallIcon(icon)
/*.setContentTitle(sTitle)*/
.setContentText(sText)
.setPriority(NotificationCompat.PRIORITY_DEFAULT)
// Set the intent that will fire when the user taps the notification
.setContentIntent(contentIntent)
.setAutoCancel(false);
// notificationId is a unique int for each notification that you must define
// and remember for delete notification
notificationManager.notify(0, builder.build());
}
else {
// Android 7.1 (API level 25) and lower
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification.Builder(getApplicationContext())
.setTicker(sTitle)
.setContentTitle(sTitle)
.setContentText(sText)
.setSmallIcon(icon)
.setWhen(System.currentTimeMillis())
.setContentIntent(contentIntent)
.build();
notification.flags |= Notification.FLAG_NO_CLEAR;
// for BIG icon:
//notification.contentView.setImageViewResource(android.R.id.icon, R.drawable.icon);
mNotificationManager.notify(0, notification);
}
}

Notifications is not shown in some devices

I use this code to show notifications users of my app.
On some devices, this code works perfectly, but some devices do not show a notification at all.
Is someone know what is the problem?
private void sendNotification(String title, String messageBody, Map<String, String> allData) {
Intent intent = new Intent(this, ReferralPage.class);
intent.putExtra("title", title);
intent.putExtra("text", messageBody);
String tid = allData.get("tid");
intent.putExtra("tid", tid);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this, "CH_"+tid)
.setSmallIcon(com.escodes.R.mipmap.ic_launcher)
.setContentTitle(title)
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent)
.setPriority(NotificationCompat.PRIORITY_MAX);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
long time = new Date().getTime();
String tmpStr = String.valueOf(time);
String last4Str = tmpStr.substring(tmpStr.length() - 5);
int notificationId = Integer.valueOf(last4Str);
notificationManager.notify(notificationId, notificationBuilder.build());
}

You need to add a notification channel for API 26 and above, like this:
if (Build.VERSION.SDK_INT >= 26) {
String CHANNEL_ID = "ID_OF_THE_CHANNEL";
NotificationChannel channel = new NotificationChannel(CHANNEL_ID,
"name_of_the_channel",
NotificationManager.IMPORTANCE_DEFAULT);
((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).createNotificationChannel(channel);
Notification notification = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_ID)
.setContentTitle("title")
.setContentText("text")
...
...
.build();
}

Set notification in loop until user click

here is my code of notification:
private void APP_FOREGROUND_showNotificationMessage(Context context, String title, String message, Intent intent) {
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
String channelId = "CHANNEL_ID";
String channelName = "CHANNEL NAME";
NotificationManager manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel mChannel = new NotificationChannel(channelId,
channelName,
NotificationManager.IMPORTANCE_HIGH);
AudioAttributes attributes = new AudioAttributes.Builder()
.setUsage(AudioAttributes.USAGE_NOTIFICATION)
.build();
mChannel.setDescription(title);
mChannel.enableLights(true);
mChannel.enableVibration(true);
mChannel.setSound(Uri.parse("android.resource://"+context.getPackageName()+"/"+R.raw.offic), attributes); // Here you set the sound
if (manager != null)
manager.createNotificationChannel(mChannel);
}
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.mipmap.vb_grey)
.setContentTitle(title)
.setColor(Color.RED)
.setSound(Uri.parse("android.resource://"+context.getPackageName()+"/"+R.raw.offic))
.setContentText(message).setAutoCancel(true).setContentIntent(pendingIntent);
Notification notification = builder.build();
notification.flags = Notification.FLAG_INSISTENT;
manager.notify(0, builder.build());
}
This is my notification code.
I have used .setDefaults(Notification.FLAG_INSISTENT) for looping but notification sound coming one time only.

You can not set the flag by using setDefaults()
You can use the following code:
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.mipmap.vb_grey)
.setContentTitle(title)
.setColor(Color.RED)
.setOngoing(true) //<-- you also need this one
.setSound(Uri.parse("android.resource://"+context+context.getPackageName()+"/"+R.raw.offic))
.setContentText(message).setAutoCancel(true).setContentIntent(pendingIntent);
Notification notification = builder.build();
notification.flags |= Notification.FLAG_INSISTENT;
also check this stackoverflow question

Android 8 (Oreo) notification not showing up

Intent intent = new Intent(this, SplashActivity.class);
Bundle bundle = new Bundle();
bundle.putString("splash", psd);
bundle.putString("targetId", targetId);
intent.putExtras(bundle);
intent.setAction(psd);
intent.setAction(targetId);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent pendingIntent = PendingIntent.getActivity(getApplicationContext(), id, intent,
0);
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(android.R.drawable.ic_notification_overlay)
.setContentTitle(title)
.setContentText(remoteMessage.getData().get("body"))
.setAutoCancel(true)
.setStyle(new NotificationCompat.BigTextStyle().bigText("" + remoteMessage.getData().get("body")))
.setContentIntent(pendingIntent)
.setSound(defaultSoundUri);
NotificationCompat.InboxStyle inboxStyle =
new NotificationCompat.InboxStyle();
String[] events = new String[6];
inboxStyle.setBigContentTitle("" + title);
for (int i = 0; i < events.length; i++) {
inboxStyle.addLine(events[i]);
}
//.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(id, notificationBuilder.build());
It used to be working, no clue what's happening on new Android devices like Android O. I didn't try back going to old devices, but it's happening on pixel.

Starting in Android 8.0 (API level 26), all notifications must be
assigned to a channel. For each channel, you can set the visual and
auditory behavior that is applied to all notifications in that
channel. Then, users can change these settings and decide which
notification channels from your app should be intrusive or visible at
all
Notification channels

try this code it works perfectly for me.
Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
PendingIntent resultPendingIntent = PendingIntent.getActivity(this, 0, resultIntent, PendingIntent.FLAG_CANCEL_CURRENT);
NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();
inboxStyle.addLine(message);
NotificationManager mNotificationManager = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE);
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(getApplicationContext(),"channel_01")
.setSmallIcon(R.mipmap.ic_launcher)
.setContentText(message)
.setContentIntent(resultPendingIntent)
.setAutoCancel(true)
.setPriority(Notification.PRIORITY_HIGH)
.setChannelId("channel_01")
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setStyle(inboxStyle)
.setContentTitle(Title);
mNotificationManager.notify(Notification_ID, mBuilder.build());
NotificationChannel channel = new NotificationChannel(Notification_ID, "Playback Notification", NotificationManager.IMPORTANCE_HIGH);
channel.enableLights(true);
channel.enableVibration(true);
channel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
assert mNotificationManager != null;
mBuilder.setChannelId("channel_01");
mNotificationManager.createNotificationChannel(channel);
}else {
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(getApplicationContext(),Notification_ID)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle(Title)
.setContentIntent(resultPendingIntent)
.setContentText(message)
.setStyle(inboxStyle)
.setSound(soundUri)
.setAutoCancel(true);
mNotificationManager.notify(Notification_ID, mBuilder.build());
}

I just figured this one out myself, you need to setup Channels in Oreo, see my previous post on the issue - I though it was a master-detail issue!!! Turns out Oreo has an additional attribute you need but it seems to fail silently if you don't provide it.

Set up notification channels. Example code below
public static void createNotificationChannel(final Context context, final
String channelId, final CharSequence channelName, final String channelDescription, final int importance, final boolean showBadge) {
try {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
postAsyncSafely("createNotificationChannel", new Runnable() {
#Override
public void run() {
NotificationManager notificationManager = (NotificationManager) context.getSystemService(NOTIFICATION_SERVICE);
NotificationChannel notificationChannel = new NotificationChannel(channelId, channelName, importance);
notificationChannel.setDescription(channelDescription);
notificationChannel.setShowBadge(showBadge);
notificationManager.createNotificationChannel(notificationChannel);
Logger.i("Notification channel " + channelName.toString() +
" has been created");
}
});
}
}catch (Throwable t){
Logger.v("Failure creating Notification Channel",t);
}
}