Develop Reference

Custom notification is not shown when using `startForeground` on Android O

I want to run background location service. It works more or less, however - instead of my custom notification with text and content intent, generic notification is shown. Why is that?
I am using Nexus API 28 emulator.
Service starting method:
private void moveToRunningState() {
Intent serviceStartIntent = new Intent(getApplicationContext(), this.getClass());
int requestId = 1;
Intent goToMainScreenIntent = new Intent(getApplicationContext(), MainActivity.class);
serviceStartIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent onTapIntent = PendingIntent.getActivity(getApplicationContext(), requestId, goToMainScreenIntent, 0);
Notification.Builder builder = NotificationUtils.notificationBuilderO(this);
builder.setContentTitle("Location tracking is running");
builder.setContentText("Your location is beeing sent to the server so it can be shown on map");
builder.setFullScreenIntent(onTapIntent, true);
builder.setProgress(0,100,true);
if (NotificationUtils.isPreAndroidO()) {
Log.d(TAG, "moveToStartedState: Running on Android N or lower - startService(intent)");
startService(serviceStartIntent);
} else {
Log.d(TAG, "moveToStartedState: Running on Android O - startForegroundService(intent)");
startForegroundService(serviceStartIntent);
}
startForeground(1, builder.build());
Log.i(TAG, "Service moved to start state");
isRunning = true;
}
Just in case, builder creation
public static Notification.Builder notificationBuilderO(Context ctx) {
NotificationManager notificationManager = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE);
NotificationChannel notificationChannel = new NotificationChannel(UUID.randomUUID().toString(), "Geoloc channel", NotificationManager.IMPORTANCE_DEFAULT);
notificationManager.createNotificationChannel(notificationChannel);
Notification.Builder builder = new Notification.Builder(ctx, notificationChannel.getId());
return builder;
and actual result:

As usual, I had to post question on SO only to find answer myself seconds afterwards.
The problem is, that I am not setting notification icon. I have tried to show the same notification using NotificationManager and it failed with explainatory exception saying that this icon is not set. This exception is not shown in logs in my case when using startForeground
All in all, setting icon fixes the issue.

Need to dismiss the notification on tap when App is in foreground - android

Im testing the push notification with my app.
when App in the foreground:
Step 1. Received the notification (in system tray).
2. now, I'm in some other screen than the home screen.
3. Actual Problem: On tap on the notification, it is going to the home screen.
4. Expected: If the app is in the foreground, just I need to cancel on tap of the notification. (No need to swipe.)
when App in background/killed: (Works well)
Step 1. Received the notification (in the system tray)
2. On tap, open the home screen of the app.
Tried with setting launch mode flags in intent. Not helped. Below is my code. Please suggest the solution guys.
Intent resultIntent = new Intent(this, MainActivity.class);
//resultIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
// resultIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK);
PendingIntent resultPendingIntent =
PendingIntent.getActivity(
this,
0,
resultIntent,
PendingIntent.FLAG_UPDATE_CURRENT
);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this);
mBuilder.setContentIntent(resultPendingIntent);
mBuilder.setSmallIcon(R.mipmap.ic_launcher);
mBuilder.setContentTitle(title);
mBuilder.setContentText(body);
mBuilder.setAutoCancel(true);
mBuilder.setStyle(new NotificationCompat.BigTextStyle().bigText(body));
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
mBuilder.setChannelId(TestUtils.creatChanel(this).getId());
}
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(642, mBuilder.build());

Not sure about dismiss notification on tap, but since your concern is wrong navigation.
We can check app is in foreground or not and prevent new activity to be opened from notification click, if app is in foreground.
//If app is in foreground setting pending intent to null
PendingIntent pendingIntent;
Intent notificationIntent = new Intent(getApplicationContext(), Main2Activity.class);
if(isAppInForeground()){
Log.e("--^","inForeground");
pendingIntent = null;
}else{
Log.e("--^","inBackground");
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
pendingIntent = PendingIntent.getActivity(getApplicationContext(), 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
}
Add this function (SOURCE: link)
private boolean isAppInForeground() {
ActivityManager activityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningAppProcessInfo> services = activityManager.getRunningAppProcesses();
boolean isActivityFound = false;
if (services.get(0).processName
.equalsIgnoreCase(getPackageName()) && services.get(0).importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
isActivityFound = true;
}
return isActivityFound;
}
In this case if notification came when app is in foreground, it will do nothing if clicked. So user has only one option left to swipe it to remove.

You can create Custom Notification with close button to close notification using RemoteViews
// create Notification with RemoteViews:
RemoteViews remoteViews= new RemoteViews(getApplicationContext().getPackageName(), R.layout.your_custom_notification);
Intent closeIntent = new Intent(context, CloseNotificationService.class);
hangUpIntent.setAction("close");
PendingIntent pendingCloseIntent = PendingIntent.getBroadcast(this, 0, closeNotification, PendingIntent.FLAG_UPDATE_CURRENT);
remoteViews.setOnClickPendingIntent(R.id.cancel_notification, pendingCloseIntent);
// create notification here..
Notification customNotification = new NotificationCompat.Builder(context, CHANNEL_ID)
.setSmallIcon(R.drawable.notification_icon)
.setStyle(new NotificationCompat.DecoratedCustomViewStyle())
.setCustomContentView(remoteViews)
.build();
OnClick of close button it will redirect to service class:
public class CloseNotificationService extends IntentService {
/**
* Creates an IntentService. Invoked by your subclass's constructor.
*/
public CloseNotificationService() {
super("notificationIntentService");
}
#Override
protected void onHandleIntent(#Nullable Intent intent) {
switch (intent.getAction()) {
case "close":
Handler hangUpHandler = new Handler(Looper.getMainLooper());
hangUpHandler.post(new Runnable() {
#Override
public void run() {
NotificationManager notifManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notifManager.cancel(notificationId); // get notification id from intent.
}
});
break;
}
}
}
For more information of RemoteViews you can refer official google developer website https://developer.android.com/training/notify-user/custom-notification

Instead of this:
Intent resultIntent = new Intent(this, MainActivity.class);
do this:
Intent resultIntent = getPackageManager().getLaunchIntentForPackage("your.package.name");
and put that in your Notification. This will launch the app if it is not already running, otherwise it will just bring the app's task to the foreground in whatever state it was when the user last used it. If the user is already in the app (ie: on another screen), this will do nothing when the user clicks the Notification.
Should be exactly what you are looking for.

Inside your launcher activity have you tried notification manager class cancelAll() method??
In this way if there is already a notification on launch then it will cancelled automatically

Heads-up Notification Buttons Not Executing

I have been searching for a few hours, but could not find any solution to my problem. Does anyone know how to make heads-up notification buttons call a broadcast? My code:
Alarm Receiver Notification Builder:
NotificationCompat.Builder builder =
new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.alarmicon)
.setContentTitle("Alarm for " + timeString)
.setContentText(MainActivity.alarmLabel.getText().toString())
.setDefaults(Notification.DEFAULT_ALL) // must requires VIBRATE permission
.setPriority(NotificationCompat.PRIORITY_HIGH); //must give priority to High, Max which will considered as heads-up notification
//set intents and pending intents to call service on click of "dismiss" action button of notification
Intent dismissIntent = new Intent(context, notificationButtonAction.class);
dismissIntent.setAction(DISMISS_ACTION);
PendingIntent piDismiss = PendingIntent.getBroadcast(context, 0, dismissIntent, 0);
builder.addAction(R.drawable.alarmoff, "Dismiss", piDismiss);
//set intents and pending intents to call service on click of "snooze" action button of notification
Intent snoozeIntent = new Intent(context, notificationButtonAction.class);
snoozeIntent.setAction(SNOOZE_ACTION);
PendingIntent piSnooze = PendingIntent.getBroadcast(context, 0, snoozeIntent, 0);
builder.addAction(R.drawable.snooze, "Snooze", piSnooze);
// Gets an instance of the NotificationManager service
NotificationManager notificationManager =
(NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
//to post your notification to the notification bar with a id. If a notification with same id already exists, it will get replaced with updated information.
notificationManager.notify(0, builder.build());
notificationButtonAction:
public static class notificationButtonAction extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
System.out.println("notificationButtonAction Started");
String action = intent.getAction();
if (SNOOZE_ACTION.equals(action)) {
stopAlarm();
System.out.println("Alarm Snoozed");
MainActivity ma = new MainActivity();
ma.setAlarm(true);
}
else if (DISMISS_ACTION.equals(action)) {
stopAlarm();
System.out.println("Alarm Dismissed");
}
}
}
My print lines in notificationButtonAction do not print, not even the "notificationButtonAction Started."
I followed the tutorial from Brevity Software (http://www.brevitysoftware.com/blog/how-to-get-heads-up-notifications-in-android/), but their code didn't seem to work.
Any help is appreciated! Thanks!

Turns out, I didn't add the class to the manifest. My code was fine.

Do not show notification if it is already shown

In my application I want show a notification in some cases.
When notification is active I do not want to create notification again.
I have activity recognition in my app and when it's detected that I am in car it starts to sound notification every second.
How could I prevent a new build notification if there is at least one active notification there?
Here is my code what I tried:
Intent closeIntent;
Intent showIntent;
if (isStart){
closeIntent = new Intent(this, SwitchButtonListener1.class);
} else {
closeIntent = new Intent(this, SwitchButtonListener2.class);
}
closeIntent.setAction("No");
PendingIntent pendingIntentClose = PendingIntent.getBroadcast(this, 0,
closeIntent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Action closeAction = new NotificationCompat.Action(R.drawable.btn_close_gray, "No", pendingIntentClose);
if (isStart){
showIntent = new Intent(this, SwitchButtonListener1.class);
} else {
showIntent = new Intent(this, SwitchButtonListener2.class);
}
showIntent.setAction("Yes");
PendingIntent pendingIntentShow = PendingIntent.getBroadcast(this, 0,
showIntent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Action showAction = new NotificationCompat.Action(R.drawable.ic_tick, "Yes", pendingIntentShow);
Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder builder = new NotificationCompat.Builder(this)
.setWhen(System.currentTimeMillis())
.setAutoCancel(true)
.setSmallIcon(R.drawable.ic_stat_milebox)
.setContentTitle(title)
.setContentText(message)
.addAction(showAction)
.addAction(closeAction);
builder.setSound(alarmSound);
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(100, builder.build());

Though it is an old question, but I think this answer might help others in the future:
In a case like this, when the user needs to be notified only once and the event is ongoing then using .setOnlyAlertOnce(true) and setOngoing(true) with the builder will solve the problem.
Documentation:
setOnlyAlertOnce(true): Set this flag if you would only like the sound, vibrate and ticker to be played if the notification is not already showing.
setOngoing(true): Set whether this is an ongoing notification. Ongoing notifications cannot be dismissed by the user, so your application or service must take care of canceling them. They are typically used to indicate a background task that the user is actively engaged with (e.g., playing music) or is pending in some way and therefore occupying the device (e.g., a file download, sync operation, active network connection).
Notification notification = new NotificationCompat.Builder(this, notificationChannel.getId())
.....
.....
.setOngoing(true)
.setOnlyAlertOnce(true)
.....
.....
.build();
Objects.requireNonNull(notificationManager).notify(notificationId, notification);

You can try the following as a sketch:
public class MediaNotificationManager extends BroadcastReceiver {
private final NotificationManager mNotificationManager;
private Context ctx;
private boolean mStarted = false;
public MediaNotificationManager(Context ctx) {
mCtx = ctx;
mNotificationManager = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE);
// Cancel all notifications to handle the case where the Service was killed and
// restarted by the system.
mNotificationManager.cancelAll();
}
/**
* Posts the notification and starts tracking the session to keep it
* updated. The notification will automatically be removed if the session is
* destroyed before {#link #stopNotification} is called.
*/
public void startNotification() {
if (!mStarted) {
// The notification must be updated after setting started to true
Notification notification = createNotification();
if (notification != null) {
mStarted = true;
}
}
}
/**
* Removes the notification and stops tracking the session. If the session
* was destroyed this has no effect.
*/
public void stopNotification() {
if (mStarted) {
mStarted = false;
try {
mNotificationManager.cancel(NOTIFICATION_ID);
} catch (IllegalArgumentException ex) {
// ignore if the receiver is not registered.
}
}
}
#Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
LogHelper.d(TAG, "Received intent with action " + action);
switch (action) {
//do something with this.
}
}
private Notification createNotification() {
//create and return the notification
}
}
For a bit more read this:
I also used this notification in my code:
https://github.com/googlesamples/android-UniversalMusicPlayer/blob/master/mobile/src/main/java/com/example/android/uamp/MediaNotificationManager.java

How to add button to notifications in android?

My app plays music and when users open notifications screen by swiping from the top of the screen ( or generally from the bottom right of the screen on tablets ), I want to present them a button to stop the currently playing music and start it again if they want.
I am not planning to put a widget on the user's home screen, but just into notifications. How can I do this?

You can create an intent for the action (in this case stop playing) and then add it as an action button to your notification.
Intent snoozeIntent = new Intent(this, MyBroadcastReceiver.class);
snoozeIntent.setAction(ACTION_SNOOZE);
snoozeIntent.putExtra(EXTRA_NOTIFICATION_ID, 0);
PendingIntent snoozePendingIntent =
PendingIntent.getBroadcast(this, 0, snoozeIntent, 0);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this, CHANNEL_ID)
.setSmallIcon(R.drawable.notification_icon)
.setContentTitle("My notification")
.setContentText("Hello World!")
.setPriority(NotificationCompat.PRIORITY_DEFAULT)
.setContentIntent(pendingIntent)
.addAction(R.drawable.ic_snooze, getString(R.string.snooze),
snoozePendingIntent);
Please refer to the Android documentation.

I will try to provide a solution that I have used and most of the music player also use the same technique to show player controls in notification bar.
I am running a service which is used to manage Media Player and all its controls. Activity User control interacts with Service by sending Intents to the service for example
Intent i = new Intent(MainActivity.this, MyRadioService.class);
i.setAction(Constants.Player.ACTION_PAUSE);
startService(i);
TO receive intents and perform action in Service class I am using following code in onStartCommand method of Service
#Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (intent.getAction().equals(Constants.Player.ACTION_PAUSE)) {
if(mediaPlayer.isPlaying()) {
pauseAudio();
}
}
Now to exact answer to your question to show notification with playing controls. You can call following methods to show notification with controls.
// showNotification
private void startAppInForeground() {
// Start Service in Foreground
// Using RemoteViews to bind custom layouts into Notification
RemoteViews views = new RemoteViews(getPackageName(),
R.layout.notification_status_bar);
// Define play control intent
Intent playIntent = new Intent(this, MyRadioService.class);
playIntent.setAction(Constants.Player.ACTION_PLAY);
// Use the above play intent to set into PendingIntent
PendingIntent pplayIntent = PendingIntent.getService(this, 0,
playIntent, 0);
// binding play button from layout to pending play intent defined above
views.setOnClickPendingIntent(R.id.status_bar_play, pplayIntent);
views.setImageViewResource(R.id.status_bar_play,
R.drawable.status_bg);
Notification status = null;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
status = new Notification.Builder(this).build();
}
status.flags = Notification.FLAG_ONGOING_EVENT;
status.icon = R.mipmap.ic_launcher;
status.contentIntent = pendingIntent;
startForeground(Constants.FOREGROUND_SERVICE, status);
}
Hope this really helps you. And you will be able to achieve what you want. Have a Happy Coding :)

// It shows buttons on lock screen (notification).
Notification notification = new Notification.Builder(context)
.setVisibility(Notification.VISIBILITY_PUBLIC)
.setSmallIcon(R.drawable.NotIcon)
.addAction(R.drawable.ic_prev, "button1",ButtonOneScreen)
.addAction(R.drawable.ic_pause, "button2", ButtonTwoScreen)
.....
.setStyle(new Notification.MediaStyle()
.setShowActionsInCompactView(1)
.setMediaSession(mMediaSession.getSessionToken())
.setContentTitle("your choice")
.setContentText("Again your choice")
.setLargeIcon(buttonIcon)
.build();
Please refer this for more details Click here

tested, working code with android Pie. These all go inside the same service class.
Show a notification:
public void setNotification() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
{
NotificationChannel channel = new NotificationChannel("a", "status", NotificationManager.IMPORTANCE_DEFAULT);
channel.setDescription("notifications");
notificationManager = getSystemService(NotificationManager.class);
notificationManager.createNotificationChannel(channel);
}
else
notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
Receiver.service = this;
Notification.MediaStyle style = new Notification.MediaStyle();
notification = new Notification.Builder(this)
.setSmallIcon(R.mipmap.ic_launcher)
.setContentTitle("Notification")
.addAction(R.drawable.close_icon, "quit_action", makePendingIntent("quit_action"))
.setStyle(style);
style.setShowActionsInCompactView(0);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
{
notification.setChannelId("a");
}
// notificationManager.notify(123 , notification.build()); // pre-oreo
startForeground(126, notification.getNotification());
}
Helper function:
public PendingIntent makePendingIntent(String name)
{
Intent intent = new Intent(this, FloatingViewService.Receiver.class);
intent.setAction(name);
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, intent, 0);
return pendingIntent;
}
To handle the actions:
static public class Receiver extends BroadcastReceiver {
static FloatingViewService service;
#Override
public void onReceive(Context context, Intent intent)
{
String whichAction = intent.getAction();
switch (whichAction)
{
case "quit_action":
service.stopForeground(true);
service.stopSelf();
return;
}
}
}
You'll need to update your manifest too:
<receiver android:name=".FloatingViewService$Receiver">
<intent-filter>
<action android:name="quit_action" />
</intent-filter>
</receiver>

I think that beside Ankit Gupta answer, you can use MediaSession (API > 21) to add native mediaController view :
notificationBuilder
.setStyle(new Notification.MediaStyle()
.setShowActionsInCompactView(new int[]{playPauseButtonPosition}) // show only play/pause in compact view
.setMediaSession(mSessionToken))
.setColor(mNotificationColor)
.setSmallIcon(R.drawable.ic_notification)
.setVisibility(Notification.VISIBILITY_PUBLIC)
.setUsesChronometer(true)
.setContentIntent(createContentIntent(description)) // Create an intent that would open the UI when user clicks the notification
.setContentTitle(description.getTitle())
.setContentText(description.getSubtitle())
.setLargeIcon(art);
Source: tutorial
you can alse create custom view and display it in the notificcation area , first answer here is great.

you can add button as below and can perform action on that button also i have done for me as below please check.
NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_logo)
.setAutoCancel(true)
.setContentTitle(name)
.setContentText(body)
.setGroupSummary(true)
.addAction(android.R.drawable.ic_menu_directions, "Mark as read", morePendingIntent);
//morePendingIntent(do your stuff)
PendingIntent morePendingIntent = PendingIntent.getBroadcast(
this,
REQUEST_CODE_MORE,
new Intent(this, NotificationReceiver.class)
.putExtra(KEY_INTENT_MORE, REQUEST_CODE_MORE)
.putExtra("bundle", object.toString()),
PendingIntent.FLAG_UPDATE_CURRENT
);

I don't know if this is the right way or not, but it works.
Create a BroadCastReceiver class to receive the data when button is pressed.
public class MyBroadCastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
String log = "URI: " + intent.toUri(Intent.URI_INTENT_SCHEME);
Log.d("my", "LOG:::::::" + log);
}
}
Now in any activity where you want to create the notification -
Intent intent = new Intent();
intent.setAction("unique_id");
intent.putExtra("key", "any data you want to send when button is pressed");
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, REQUEST_CODE, intent, 0);
Now use this pending intent when you are creating the notification and lastly you need to register this broadcast in order to receive it in MyBroadCastReceiver class.
BroadcastReceiver br = new MyBroadCastReceiver();
IntentFilter filter = new IntentFilter("unique_id");
registerReceiver(br, filter);
Now if you want to do certain things when the button is pressed, you can do so in the onReceive() method in MyBroadCastReceiver class.