Develop Reference

notification doesn't cancel in android 6

notification in nexus 5 android 6 don't cancel and go away from it. but when i run it on diffrenet device with android 9 or more, notification goes away. please help me.
public void showNotification(int playPauseBtn)
{
Intent intent = new Intent(this, PlayerActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent contentIntent = PendingIntent.getActivity(this, NOTIFICATION_ID, intent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent PrevIntent = new Intent(this, NotificationReceiver.class).setAction(ACTION_PREVIOUS);
PendingIntent prevPending = PendingIntent.getBroadcast(this, NOTIFICATION_ID, PrevIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent pauseIntent = new Intent(this, NotificationReceiver.class).setAction(ACTION_PLAY);
PendingIntent pausePending = PendingIntent.getBroadcast(this, NOTIFICATION_ID, pauseIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent nextIntent = new Intent(this, NotificationReceiver.class).setAction(ACTION_NEXT);
PendingIntent nextPending = PendingIntent.getBroadcast(this, NOTIFICATION_ID, nextIntent, PendingIntent.FLAG_UPDATE_CURRENT);
byte[] picture;
picture = getTrackArt(musicFiles.get(position).getPath());
Bitmap thumb;
if (picture != null)
{
thumb = BitmapFactory.decodeByteArray(picture, 0, picture.length);
} else
{
thumb = BitmapFactory.decodeResource(getResources(), R.drawable.musicnowplaying);
}
Notification notification = new NotificationCompat.Builder(getApplicationContext(), CHANNEL_ID_2)
.setSmallIcon(playPauseBtn)
.setLargeIcon(thumb)
.setChannelId(CHANNEL_ID_2)
.setContentIntent(contentIntent)
.setAutoCancel(true)
.setOngoing(true)
.setContentTitle(musicFiles.get(position).getSongTitle())
.setContentText(musicFiles.get(position).getArtist())
.addAction(R.drawable.ic_skip_previous, "Previous", prevPending)
.addAction(playPauseBtn, "Pause", pausePending)
.addAction(R.drawable.ic_skip_next, "Next", nextPending)
.setStyle(new androidx.media.app.NotificationCompat.MediaStyle()
.setMediaSession(mediaSessionCompat.getSessionToken()))
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setOnlyAlertOnce(true)
.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
.build();
startForeground(NOTIFICATION_ID, notification);
}

Android studio notifications implemented but not showing

I have implemented android notifications in android studio. I was creating notification for a media player. following is the function for showing notifications
public void showNotification(int playPauseBtn)
{
Intent intent = new Intent(this, PlayerActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, intent, 0);
Intent prevIntent = new Intent(this, NotificationReceiver.class).setAction(ACTION_PREVIOUS);
PendingIntent prevPending = PendingIntent.getBroadcast(this, 0, prevIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent pauseIntent = new Intent(this, NotificationReceiver.class).setAction(ACTION_PLAY);
PendingIntent pausePending = PendingIntent.getBroadcast(this, 0, pauseIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent nextIntent = new Intent(this, NotificationReceiver.class).setAction(ACTION_NEXT);
PendingIntent nextPending = PendingIntent.getBroadcast(this, 0, nextIntent, PendingIntent.FLAG_UPDATE_CURRENT);
byte[] picture = null;
try
{
picture = getAlbumArt(listSongs.get(position).getPath());
} catch (Exception ignored)
{
}
Bitmap thumb;
if (picture != null)
{
thumb = BitmapFactory.decodeByteArray(picture, 0, picture.length);
} else
{
thumb = BitmapFactory.decodeResource(getResources(), R.drawable.icon_music);
}
Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID_1).setSmallIcon(playPauseBtn)
.setLargeIcon(thumb)
.setContentTitle(listSongs.get(position).getTitle())
.setContentText(listSongs.get(position).getArtist())
.addAction(R.drawable.ic_baseline_skip_previous_24, "Previous", prevPending)
.addAction(R.drawable.ic_baseline_skip_next_24, "Next", nextPending)
.addAction(playPauseBtn, "pause", pausePending)
.setStyle(new androidx.media.app.NotificationCompat.MediaStyle().setMediaSession(mediaSessionCompat.getSessionToken()))
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setOnlyAlertOnce(true)
.setContentIntent(contentIntent)
.build();
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
notificationManager.notify(0, notification);
Toast.makeText(PlayerActivity.this, "Nitification created", Toast.LENGTH_SHORT).show();
}
In the function parameter (playPauseBtn) I am sending the play icon or the pause icon depending upon weather the song is playing or is paused.
Function call is made like following:
showNotification(R.drawable.ic_baseline_pause_24);
OR
showNotification(R.drawable.ic_baseline_play_arrow_24);
But when ever I call this function the notification doesn't show up. I am also using the notification channel but still it is not working. I have also tried to debug the code but the code runs fine, still the notification doesn't show up. please advise

try this.
put this code in your Activity/fragment;
public void getNotification(){
int notifId =new Random().nextInt(500); //get random id
NotificationManager notificationManager;
Notification notification;
notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
channelID = "1";
channelName = "news";
channelDesc = "news description";
NotificationChannel notificationChannel = new NotificationChannel(channelID, channelName, NotificationManager.IMPORTANCE_HIGH);
notificationChannel.setDescription(channelDesc);
notificationChannel.enableLights(true);
notificationChannel.setSound(null, null);
notificationChannel.setLightColor(Color.GREEN);
notificationManager.createNotificationChannel(notificationChannel);
}
RingtoneManager.getRingtone(mContext,
RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)).play();
NotificationCompat.Builder builder = new NotificationCompat.Builder(mContext, channelID)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle("title Of MUSIC")
.setContentText("Content")
.setVibrate(new long[]{100, 500, 500, 500, 500})
.setAutoCancel(true)
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setLargeIcon(BitmapFactory.decodeResource(mContext.getResources(), R.mipmap.ic_launcher))
.setVisibility(NotificationCompat.VISIBILITY_PUBLIC);
Intent actionReadMessage = new Intent(mContext, NotifAction.class);
actionReadMessage.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
actionReadMessage.setAction("Play");
actionReadMessage.putExtra("NotifId",notifId);
PendingIntent playPendingIntent = PendingIntent.getBroadcast(mContext, notifId, actionReadMessage,PendingIntent.FLAG_CANCEL_CURRENT);
Intent mainAction = new Intent(mContext, NotifAction.class);
mainAction.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
mainAction.setAction("Pause");
mainAction.putExtra("NotifId",notifId);
PendingIntent PausePendingIntent = PendingIntent.getBroadcast(mContext, notifId, mainAction,PendingIntent.FLAG_CANCEL_CURRENT);
builder.setContentIntent(PausePendingIntent);
builder.addAction(R.mipmap.ic_launcher, "Play", playPendingIntent);
builder.addAction(R.mipmap.ic_launcher, "Pause", PausePendingIntent);
notification = builder.build();
notificationManager.notify(notifId, notification);
}
and create class NotifAction.class for handle all action:
public class NotifAction extends BroadcastReceiver {
private static final String TAG = "maybe";
private MediaPlayer mp;
#Override
public void onReceive(final Context context, Intent intent) {
String action = intent.getAction();
Bundle extra = intent.getExtras();
if (extra != null) {
int notifId = extra.getInt("NotifId");
if (action.equals("Play")) {
mp = MediaPlayer.create(context, R.raw.music);
handleMusicState(mp);
} else if (action.equals("Pause")) {
handleMusicState(mp);
setMessageRead(notifId, context);
} else {
Toast.makeText(context, "extra action !", Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(context, "Empty extra !", Toast.LENGTH_SHORT).show();
}
}
private void setMessageRead(int id, Context context) {
// other method
clearNotification(id, context);
}
private void clearNotification(int id, Context context) {
NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.cancel(id);
}
private void handleMusicState(MediaPlayer mediaPlayer) {
if (mediaPlayer.isPlaying()) mediaPlayer.pause();
else mediaPlayer.start();
}
}
define this receiver to manifest:
note:in tag
<receiver android:name=".NotifAction">
<intent-filter>
<action android:name="Play" />
<action android:name="Pause" />
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
</intent-filter>
</receiver>

FIX
Donot use .setMediaSession(mediaSessionCompat.getSessionToken()) in .setStyle() in the code given in the question
simply just use
.setStyle(new androidx.media.app.NotificationCompat.MediaStyle())

Cancelling multiple notification by sending unique id to broadcast receiver

I create multiple notifications using AlarmManager. Each notification pop-ups correctly and I would like to cancel each of these notification separately. I have an AlarmReceiver that creates the notification and sets the unique id for it. I'm sending the unique id in the intent (via putExtra). This way, I can retrieve it in the NotificationReceiver and cancel the notification. However, it is not working.
Do you know why I always get the default value when I use intent.getIntExtra("UNIQUE_ID_NAME",0) ?
Is it a proper way to achieve the goal of cancelling these notifications ?
Here is my code:
MainActivity class:
#Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, ReminderBroadcast.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(MainActivity.this, 0, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
long ctime = System.currentTimeMillis();
long tensec = 1000 * 5;
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, ctime+tensec, 1000*10 , pendingIntent);
}
AlarmReceiver Class:
#Override
public void onReceive(Context context, Intent intent) {
int notification_id = generateRandom();
Intent activityIntent = new Intent(context, MainActivity.class);
activityIntent.putExtra(NotificationReceiver.UNIQUE_ID_NAME, notification_id);
PendingIntent contentIntent = PendingIntent.getActivity(context, 0, activityIntent, PendingIntent.FLAG_UPDATE_CURRENT);
Intent bYesIntent = new Intent(context, NotifReceiver.class);
bYesIntent.putExtra(NotificationReceiver.YES_ACTION_ID, "yesID");
PendingIntent actionYesIntent = PendingIntent.getBroadcast(context, 0, bYesIntent, 0);
Intent bNoIntent = new Intent(context, NotifReceiver.class);
bNoIntent.putExtra(NotificationReceiver.NO_ACTION_ID, "noID");
PendingIntent actionNoIntent = PendingIntent.getBroadcast(context, 0, bNoIntent, 0);
NotificationCompat.Builder builder = new NotificationCompat.Builder(context, "channel1")
.setSmallIcon(R.drawable.ic_launcher_background)
.setContentTitle("Notif")
.setContentText("Text")
.setPriority(NotificationCompat.PRIORITY_DEFAULT)
.setContentIntent(contentIntent)
.addAction(R.mipmap.ic_launcher, "YES", actionYesIntent)
.addAction(R.mipmap.ic_launcher, "NO", actionNoIntent)
.setAutoCancel(true);
NotificationManagerCompat notificationManager = NotificationManagerCompat.from(context);
notificationManager.notify(notification_id, builder.build());
}
public int generateRandom(){
Random random = new Random();
return random.nextInt(9999 - 1000) + 1000;
}
NotificationReceiver Class:
public class NotificationReceiver extends BroadcastReceiver {
public static String YES_ACTION_ID = "YesID";
public static String NO_ACTION_ID = "NoID";
public static String UNIQUE_ID_NAME = "notification_id";
#Override
public void onReceive(Context context, Intent intent) {
int notification_id= intent.getIntExtra(UNIQUE_ID_NAME,0);
System.out.println("Notif ID: " + notification_id); // here always is 0;
String actionYes = intent.getStringExtra(YES_ACTION_ID);
String actionNo = intent.getStringExtra(NO_ACTION_ID);
if(actionYes!=null){
Toast.makeText(context, "YES", Toast.LENGTH_SHORT).show();
}
if(actionNo!=null){
Toast.makeText(context, "NO", Toast.LENGTH_SHORT).show();
}
NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
manager.cancel(notification_id);
}
}

I solved this problem by updating current intent and request code. Notifications are reusing the same Intent so adding FLAG_UPDATE_CURRENT should be used to be able to cancel all notification separately.
For contentIntent:
PendingIntent contentIntent = PendingIntent.getActivity(context, notification_id, activityIntent, PendingIntent.FLAG_UPDATE_CURRENT);
For actionYesIntent
PendingIntent actionYesIntent = PendingIntent.getBroadcast(context, notification_id, bYesIntent, PendingIntent.FLAG_UPDATE_CURRENT);
For actionNoIntent:
PendingIntent actionNoIntent = PendingIntent.getBroadcast(context, notification_id, bNoIntent, PendingIntent.FLAG_UPDATE_CURRENT);

You are not adding notification_id for cases when Yes or No button is pressed,
Intent bYesIntent = new Intent(context, NotifReceiver.class);
bYesIntent.putExtra(NotificationReceiver.UNIQUE_ID_NAME, notification_id);
bYesIntent.putExtra(NotificationReceiver.YES_ACTION_ID, "yesID");
PendingIntent actionYesIntent = PendingIntent.getBroadcast(context, 0, bYesIntent, 0);
Intent bNoIntent = new Intent(context, NotifReceiver.class);
bNoIntent.putExtra(NotificationReceiver.UNIQUE_ID_NAME, notification_id);
bNoIntent.putExtra(NotificationReceiver.NO_ACTION_ID, "noID");
PendingIntent actionNoIntent = PendingIntent.getBroadcast(context, 0, bNoIntent, 0);

Activity shown immediatly instead of showing a notification

I'm trying to use the AlarmManager to send a notification to the user later in the day, whether he is using the application or not.
I basically pasted what I saw here : http://developer.android.com/guide/topics/ui/notifiers/notifications.html, but obviously something went wrong because instead of showing a notification, the AndroidLauncher Activity is shown.
Here is my code :
public void planNotification() {
AlarmManager am = (AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.icon)
.setContentTitle("My notification")
.setContentText("Hello World!");
Intent resultIntent = new Intent(this, AndroidLauncher.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(AndroidLauncher.class);
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
int currentApiVersion = android.os.Build.VERSION.SDK_INT;
if (currentApiVersion >= 19)
am.setWindow(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 5000, 5000, resultPendingIntent);
else
am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 86400000, resultPendingIntent);
}
I'm still new to Intents and PendingIntents, so it may be a dumb mistake.
~~~ ~~~ EDIT : Thank you for your help ! Now that I understood that I need a BroadcastReceiver, I can't get it to work. It looks like onReceive() is never called.
Here is my Main Activity :
#Override
public void planNotification() {
AlarmManager am = (AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(this, AlarmReceiver.class);
PendingIntent alarmIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
int currentApiVersion = android.os.Build.VERSION.SDK_INT;
if (currentApiVersion >= 19)
am.setWindow(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 5000, 5000, alarmIntent);
else
am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 5000, alarmIntent);
}
And my BroadcastReceiver :
public class AlarmReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
System.out.println("ON RECEIVE");
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.icon)
.setContentTitle("My notification")
.setContentText("Hello World!");
Intent resultIntent = new Intent(context, AndroidLauncher.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addParentStack(AndroidLauncher.class);
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(AndroidLauncher.notifId, mBuilder.build());
}
}

The way you have it, the alarm manager is directly using your resultIntent.
You should move your notification creation code to a BroadcastReceiver:
public class AlarmReceiver extends BroadcastReceiver{
#Override
public void onReceive(Context context, Intent intent) {
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.icon)
.setContentTitle("My notification")
.setContentText("Hello World!");
Intent resultIntent = new Intent(this, AndroidLauncher.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
stackBuilder.addParentStack(AndroidLauncher.class);
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(mId, mBuilder.build());
}
}
And use the AlarmManager to call the BroadcastReceiver:
Intent intent = new Intent(this, AlarmReceiver.class);
PendingIntent alarmIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
if (currentApiVersion >= 19)
am.setWindow(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 5000, 5000, alarmIntent);
else
am.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + 86400000, alarmIntent);

The notification can't skip to another activity?

my code is
public class AlarmReceiver extends BroadcastReceiver {
public Notification mNotification = null;
public NotificationManager mNotificationManager = null;
#Override
public void onReceive(Context context, Intent intent) {
Toast.makeText(context, "time up！", Toast.LENGTH_SHORT).show();
mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
mNotification = new Notification(R.drawable.icon, "tip！",
System.currentTimeMillis());
mNotification.contentView = new RemoteViews(context.getPackageName(),
R.layout.notification);
mNotification.contentView.setTextViewText(R.id.tv_tip, "click to see the description");
Intent notificationIntent = new Intent(context,NotificationTip.class);
notificationIntent.putExtra("description", intent.getStringExtra("description")) ;
//notificationIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent contentIntent = PendingIntent.getActivity(context, 0,
notificationIntent, 0);
mNotification.contentIntent = contentIntent;
mNotificationManager.notify(0, mNotification);
}
}
While when I click the item in notification ,I can't get to NotificationTip activity,so what's wrong with this code?

following line
Intent notificationIntent = new Intent(context,NotificationTip.class);
needs to be
Intent notificationIntent = new Intent("X");
Where X is the intent action name. this you have to add as intent filter in your android manifest file.