Develop Reference

How does Marshmallow show Notification Badges? [duplicate]

This question already has answers here:
Is there a way to add a badge to an application icon in Android?
(6 answers)
Closed 5 years ago.
samsung galaxy note 2 android version 4.1.2
I know that this question was asked before and the reply was not possible
How to display balloon counter over application launcher icon on
android
Nevertheless yesterday I updated the facebook app and it started to show a counter of unread messages private messages. How come facebook app can and I cant do so for my app?
samsung galaxy note 2 android version 4.1.2

Android ("vanilla" android without custom launchers and touch interfaces) does not allow changing of the application icon, because it is sealed in the .apk tightly once the program is compiled. There is no way to change it to a 'drawable' programmatically using standard APIs. You may achieve your goal by using a widget instead of an icon. Widgets are customisable. Please read this :http://www.cnet.com/8301-19736_1-10278814-251.html and this http://developer.android.com/guide/topics/appwidgets/index.html.
Also look here: https://github.com/jgilfelt/android-viewbadger. It can help you.
As for badge numbers. As I said before - there is no standard way for doing this. But we all know that Android is an open operating system and we can do everything we want with it, so the only way to add a badge number - is either to use some 3-rd party apps or custom launchers, or front-end touch interfaces: Samsung TouchWiz or Sony Xperia's interface. Other answers use this capabilities and you can search for this on stackoverflow, e.g. here. But I will repeat one more time: there is no standard API for this and I want to say it is a bad practice. App's icon notification badge is an iOS pattern and it should not be used in Android apps anyway. In Andrioid there is a status bar notifications for these purposes:http://developer.android.com/guide/topics/ui/notifiers/notifications.html
So, if Facebook or someone other use this - it is not a common pattern or trend we should consider. But if you insist anyway and don't want to use home screen widgets then look here, please:
How does Facebook add badge numbers on app icon in Android?
As you see this is not an actual Facebook app it's TouchWiz. In vanilla android this can be achieved with Nova Launcher http://forums.androidcentral.com/android-applications/199709-how-guide-global-badge-notifications.html
So if you will see icon badges somewhere, be sure it is either a 3-rd party launcher or touch interface (frontend wrapper). May be sometime Google will add this capability to the standard Android API.

It works in samsung touchwiz launcher
public static void setBadge(Context context, int count) {
String launcherClassName = getLauncherClassName(context);
if (launcherClassName == null) {
return;
}
Intent intent = new Intent("android.intent.action.BADGE_COUNT_UPDATE");
intent.putExtra("badge_count", count);
intent.putExtra("badge_count_package_name", context.getPackageName());
intent.putExtra("badge_count_class_name", launcherClassName);
context.sendBroadcast(intent);
}
public static String getLauncherClassName(Context context) {
PackageManager pm = context.getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
List<ResolveInfo> resolveInfos = pm.queryIntentActivities(intent, 0);
for (ResolveInfo resolveInfo : resolveInfos) {
String pkgName = resolveInfo.activityInfo.applicationInfo.packageName;
if (pkgName.equalsIgnoreCase(context.getPackageName())) {
String className = resolveInfo.activityInfo.name;
return className;
}
}
return null;
}

ShortcutBadger is a library that adds an abstraction layer over the device brand and current launcher and offers a great result. Works with LG, Sony, Samsung, HTC and other custom Launchers.
It even has a way to display Badge Count in Pure Android devices desktop.
Updating the Badge Count in the application icon is as easy as calling:
int badgeCount = 1;
ShortcutBadger.applyCount(context, badgeCount);
It includes a demo application that allows you to test its behavior.

I have figured out how this is done for Sony devices.
I've blogged about it here. I've also posted a seperate SO question about this here.
Sony devices use a class named BadgeReciever.
Declare the com.sonyericsson.home.permission.BROADCAST_BADGE permission in your manifest file:
Broadcast an Intent to the BadgeReceiver:
Intent intent = new Intent();
intent.setAction("com.sonyericsson.home.action.UPDATE_BADGE");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME", "com.yourdomain.yourapp.MainActivity");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", true);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.MESSAGE", "99");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME", "com.yourdomain.yourapp");
sendBroadcast(intent);
Done. Once this Intent is broadcast the launcher should show a badge on your application icon.
To remove the badge again, simply send a new broadcast, this time with SHOW_MESSAGE set to false:
intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", false);
I've excluded details on how I found this to keep the answer short, but it's all available in the blog. Might be an interesting read for someone.

This is sample and best way for showing badge on notification launcher icon.
Add This Class in your application
public class BadgeUtils {
public static void setBadge(Context context, int count) {
setBadgeSamsung(context, count);
setBadgeSony(context, count);
}
public static void clearBadge(Context context) {
setBadgeSamsung(context, 0);
clearBadgeSony(context);
}
private static void setBadgeSamsung(Context context, int count) {
String launcherClassName = getLauncherClassName(context);
if (launcherClassName == null) {
return;
}
Intent intent = new Intent("android.intent.action.BADGE_COUNT_UPDATE");
intent.putExtra("badge_count", count);
intent.putExtra("badge_count_package_name", context.getPackageName());
intent.putExtra("badge_count_class_name", launcherClassName);
context.sendBroadcast(intent);
}
private static void setBadgeSony(Context context, int count) {
String launcherClassName = getLauncherClassName(context);
if (launcherClassName == null) {
return;
}
Intent intent = new Intent();
intent.setAction("com.sonyericsson.home.action.UPDATE_BADGE");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME", launcherClassName);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", true);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.MESSAGE", String.valueOf(count));
intent.putExtra("com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME", context.getPackageName());
context.sendBroadcast(intent);
}
private static void clearBadgeSony(Context context) {
String launcherClassName = getLauncherClassName(context);
if (launcherClassName == null) {
return;
}
Intent intent = new Intent();
intent.setAction("com.sonyericsson.home.action.UPDATE_BADGE");
intent.putExtra("com.sonyericsson.home.intent.extra.badge.ACTIVITY_NAME", launcherClassName);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.SHOW_MESSAGE", false);
intent.putExtra("com.sonyericsson.home.intent.extra.badge.MESSAGE", String.valueOf(0));
intent.putExtra("com.sonyericsson.home.intent.extra.badge.PACKAGE_NAME", context.getPackageName());
context.sendBroadcast(intent);
}
private static String getLauncherClassName(Context context) {
PackageManager pm = context.getPackageManager();
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
List<ResolveInfo> resolveInfos = pm.queryIntentActivities(intent, 0);
for (ResolveInfo resolveInfo : resolveInfos) {
String pkgName = resolveInfo.activityInfo.applicationInfo.packageName;
if (pkgName.equalsIgnoreCase(context.getPackageName())) {
String className = resolveInfo.activityInfo.name;
return className;
}
}
return null;
}
}
==> MyGcmListenerService.java
Use BadgeUtils class when notification comes.
public class MyGcmListenerService extends GcmListenerService {
private static final String TAG = "MyGcmListenerService";
#Override
public void onMessageReceived(String from, Bundle data) {
String message = data.getString("Msg");
String Type = data.getString("Type");
Intent intent = new Intent(this, SplashActivity.class);
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.BigTextStyle bigTextStyle= new NotificationCompat.BigTextStyle();
bigTextStyle .setBigContentTitle(getString(R.string.app_name))
.bigText(message);
NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)
.setSmallIcon(getNotificationIcon())
.setContentTitle(getString(R.string.app_name))
.setContentText(message)
.setStyle(bigTextStyle)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
int color = getResources().getColor(R.color.appColor);
notificationBuilder.setColor(color);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
int unOpenCount=AppUtill.getPreferenceInt("NOTICOUNT",this);
unOpenCount=unOpenCount+1;
AppUtill.savePreferenceLong("NOTICOUNT",unOpenCount,this);
notificationManager.notify(unOpenCount /* ID of notification */, notificationBuilder.build());
// This is for bladge on home icon
BadgeUtils.setBadge(MyGcmListenerService.this,(int)unOpenCount);
}
private int getNotificationIcon() {
boolean useWhiteIcon = (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP);
return useWhiteIcon ? R.drawable.notification_small_icon : R.drawable.icon_launcher;
}
}
And clear notification from preference and also with badge count
public class SplashActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);
AppUtill.savePreferenceLong("NOTICOUNT",0,this);
BadgeUtils.clearBadge(this);
}
}
<uses-permission android:name="com.sonyericsson.home.permission.BROADCAST_BADGE" />

How to know make notification when user doesn't executing application

I'd like to make an notification which start to count time when user exited android application. If user do not executed application after 1hours, It notified me to execute and If user ignoring it, It executes saved SMS messages. I found some examples on timer, but I do not know how to find application exit time. Please give me some advice with full code. I am desperately need it...
TimerTask task = new TimerTask(){
public void run() {
try {
mainTime++;
int min = mainTime / 60;
int sec = mainTime % 60;
String strTime = String.format("%s : %s", min, sec);
} catch (Exception e) {
e.printStackTrace();
}
}
};
Timer mTimer = new Timer();
mTimer.schedule(task, 0, 60000);
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("Chack your app", smsBody);
sendIntent.putExtra("12345678", phonenumber);
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);

Okay so what you need to do is to store the system time locally (may be using SharedPreferences) when the application exits. You can register a BroadcastReceiver which will help you trigger some action when 1hr or a certain time has passed from the locally stored time when app exited.
If you want to know how to handle programmatically when and how to exit the app , please refer this answer.

You could also try to use the Android alarm system. Once the user exit your application, you could set up an Alarm. Something like:
YourActivityOrFragment.java
#Override
protected void onStop() {
Calendar c = Calendar.getInstance();
c.setTimeInMillis(System.currentTimeMillis());
c.add(Calendar.HOUR,1);
scheduleAlarm(c.getTimeInMillis());
}
private void scheduleAlarm(long time) {
Intent yourIntent = new Intent("Some_ID");
PendingIntent pi = PendingIntent.getBroadcast(YourClass.this, ALARM_ID, yourIntent, PendingIntent.FLAG_CANCEL_CURRENT);
// Put some extras here, if you need so. Like:
// yourIntent.putExtra("field","value");
AlarmManager am = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP,time,pi);
}
Now, create a BroadcastReceiver to handle those alarms.
AlarmReceiver.java
public class AlarmReceiver extends BroadcastReceiver {
private static final String LOG_TAG = AlarmReceiver.class.getSimpleName();
#Override
public void onReceive(Context context, Intent intent) {
Log.d(LOG_TAG, "Alarm fired!");
Intent it = new Intent(context, YourNotificationHandler.class);
// Get your Extras here. And do whatever you want, if you need.
// For what you said, there's no need to start an Activity, so let's handle that alarm as a service.
context.startService(it);
// But if for some reason you want to start an Activity, just do it like:
// context.startActivity(it);
}
}
On your AndroidManifest.xml declare your BroadcastReceiver.
<receiver android:name=".AlarmReceiver" >
<intent-filter>
<action android:name="Some_ID" />
<category android:name="android.intent.category.default" />
</intent-filter>
</receiver>
And last of all, create your service to handle your notifications, you could try something like an IntentService. On that file, you'll have a onHandleIntent(Intent intent) method. Get your Intent there, and it's Extras, and do whatever you want to do. Later, just call your Notifications. I've used a utility class on my projects to handle those, but feel free to choose how you'll do that.
Example:
public static void createService(Context context, CharSequence tickerMessage, CharSequence title,
CharSequence message, int icon, int id, Intent intent, long[] pattern, Boolean autoCancel) {
PendingIntent p = PendingIntent.getService(context, 0, intent, 0);
Notification n;
int apiLevel = Build.VERSION.SDK_INT;
if (apiLevel >= 11) {
NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
.setContentTitle(title)
.setTicker(tickerMessage)
.setContentText(message)
.setSmallIcon(icon)
.setContentIntent(p)
.setPriority(NotificationCompat.PRIORITY_DEFAULT);
if (pattern.length > 0) {
builder.setVibrate(pattern);
}
if (autoCancel != null) {
builder.setAutoCancel(autoCancel);
}
if (apiLevel >= 17) {
// Android 4.2+
n = builder.build();
}
else {
// Android 3.x
n = builder.getNotification();
}
}
else {
// Android 2.2+
n = new Notification(icon, tickerMessage, System.currentTimeMillis());
// Data
n.setLatestEventInfo(context, title, message, p);
}
NotificationManager nm = (NotificationManager)
context.getSystemService(Activity.NOTIFICATION_SERVICE);
nm.notify(id, n);
}
You can read more about alarms here.
More on Service here.
BroadcastReceiver here.
Notifications, here and here.
And this might be an interesting read about Notification as well.

Android TV - Recommendation (Notification) will not auto-cancel

When creating a recommendation (or Notification) in Lollipop on Android TV, I cannot get it to Auto-cancel.
I am using the "NotificationCompat.BigPictureStyle" as recommended in the Android TV developer pages. The notification works as designed, triggering the PendingIntent as expected but does not auto-cancel and dissappear from recommendations bar. A second selection of the recommendation brings up a blank screen, so I guess the PendingIntent is null at that point. (ADB shows android.content.IntentSender$SendIntentException on 2nd invocation.)
Tested on Nexus Player and Android TV Emulator.
private void buildAndroidTVRecommendation(String name, PendingIntent pIntent,
Context context2, Bundle extras) {
NotificationManager mNotificationManager = (NotificationManager)
context2.getSystemService(Context.NOTIFICATION_SERVICE);
Bitmap smallBitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.air_share);
Notification notification = new NotificationCompat.BigPictureStyle(
( new NotificationCompat.Builder(context)
.setContentTitle("Air-Share - incoming share")
.setContentText("From: "+name)
.setContentInfo("Air-Share"))
.setGroup("Air-Share")
.setColor(0xFFFF2020)
.setCategory(Notification.CATEGORY_RECOMMENDATION)
.setLargeIcon(smallBitmap)
.setSmallIcon(R.drawable.air_share)
.setContentIntent(pIntent)
.setExtras(extras)
.setAutoCancel(true)
)
.build();
mNotificationManager.notify(pendingCounter, notification);
mNotificationManager = null;
}

For what it's worth I have created a work-around to get by this issue.
I created a new Activity whose sole purpose is to receive a Pending intent from the Recommendation.
I alter the original Pending Intent of the recommendation to invoke this new activity instead of my desired activity. (The desired activity is outside my app.) In the Extras, I bundle everything I need to know for my original desired intent as well as the notification ID.
When the new activity is launched (after user clicks on recommendation), I extract the ID and cancel the recommendation. I then extract the information for the desired intent, create the intent and finally finish the activity.
public class TVRecommendationActivity extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Intent in = (Intent) getIntent();
String jsonString = in.getStringExtra("jsonString");
String fileUri = in.getStringExtra("fileUri");
int id =in.getIntExtra("notificationID", -1);
NotificationManager nm = (NotificationManager)getSystemService(Context.NOTIFICATION_SERVICE);
if (id >= 0 ) nm.cancel(id);
JSONIntent newIntent = new JSONIntent(getApplicationContext());
newIntent.setIncomingLocalFileURI(fileUri);
Intent out = newIntent.buildIntentFromJSON(jsonString, fileUri);
if (out != null) startActivity(out);
finish();
}
}

android notification in background if app closed?

I am trying to display a notification in the Android notifications bar even if my application is closed.
I've tried searching, but I have had no luck finding help.
An example of this is a news application. Even if the phone screen is off or the news application is closed, it can still send a notification for recent news and have it appear in the notification bar.
How might I go about doing this in my own application?

You have to build a Service that handles your news and shows notifications when it knows that are new news (Service Doc).
The service will run in background even if your application is closed.
You need a BroadcastReciever to run the service in background after the boot phase is completed. (Start service after boot).
The service will build your notifications and send them through the NotificationManager.
EDIT: This article may suit your needs

The selected answer is still correct, but only for devices running Android 7 versions and below.
As of Android 8+, you can no longer have a service running in the background while your app is idle/closed.
So, it now depends on how you set up your notifications from your GCM/FCM server. Ensure to set it to the highest priority. If your app is in the background or just not active and you only send notification data, the system process your notification and send it to the Notification tray.

I used this answer to write a service, and as an exmaple you need to call ShowNotificationIntentService.startActionShow(getApplicationContext()) inside one of your activities:
import android.app.IntentService;
import android.content.Intent;
import android.content.Context;
public class ShowNotificationIntentService extends IntentService {
private static final String ACTION_SHOW_NOTIFICATION = "my.app.service.action.show";
private static final String ACTION_HIDE_NOTIFICATION = "my.app.service.action.hide";
public ShowNotificationIntentService() {
super("ShowNotificationIntentService");
}
public static void startActionShow(Context context) {
Intent intent = new Intent(context, ShowNotificationIntentService.class);
intent.setAction(ACTION_SHOW_NOTIFICATION);
context.startService(intent);
}
public static void startActionHide(Context context) {
Intent intent = new Intent(context, ShowNotificationIntentService.class);
intent.setAction(ACTION_HIDE_NOTIFICATION);
context.startService(intent);
}
#Override
protected void onHandleIntent(Intent intent) {
if (intent != null) {
final String action = intent.getAction();
if (ACTION_SHOW_NOTIFICATION.equals(action)) {
handleActionShow();
} else if (ACTION_HIDE_NOTIFICATION.equals(action)) {
handleActionHide();
}
}
}
private void handleActionShow() {
showStatusBarIcon(ShowNotificationIntentService.this);
}
private void handleActionHide() {
hideStatusBarIcon(ShowNotificationIntentService.this);
}
public static void showStatusBarIcon(Context ctx) {
Context context = ctx;
NotificationCompat.Builder builder = new NotificationCompat.Builder(ctx)
.setContentTitle(ctx.getString(R.string.notification_message))
.setSmallIcon(R.drawable.ic_notification_icon)
.setOngoing(true);
Intent intent = new Intent(context, MainActivity.class);
PendingIntent pIntent = PendingIntent.getActivity(context, STATUS_ICON_REQUEST_CODE, intent, 0);
builder.setContentIntent(pIntent);
NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notif = builder.build();
notif.flags |= Notification.FLAG_ONGOING_EVENT;
mNotificationManager.notify(STATUS_ICON_REQUEST_CODE, notif);
}
}

Android Notifications from AI in background

I'm building a prototype application of a larger system. This prototype will be offline but still look like it's getting information from a server. Even when the app is not open (using DeamonThread).
So I created the Android application and now trying to add an AI (within the app) that create and delete tasks. It works, but when I try to add Notifications from the DeamonThread it won't since Thread is not an Activity.
I tried to change it to
extends Activity implements Runnable
But then it's not possible to make it Deamon.
Feels like I'm missing something easy..
public void run() {
while (counter < 100) {
try {
sleep(random.nextInt(10000));
} catch (InterruptedException e) {
e.printStackTrace();
}
Task task = new Task("AI", "this was the " + counter
+ " AI message", flow);
sendNotation();
}
counter++;
}
}
private void sendNotation() {
NotificationManager nm=(NotificationManager) getSystemService(NOTIFICATION_SERVICE);
Intent intent = new Intent(this, Flippin.class);
PendingIntent pi = PendingIntent.getActivity(this, 0, intent, 0);
String body = "This is a message from Adam";
String title = "One new Task";
NotificationCompat.Builder n = new NotificationCompat.Builder(this);
n.setContentIntent(pi);
n.setSmallIcon(R.drawable.notif);
n.setContentTitle(title);
n.setContentText(body);
n.setDefaults(Notification.DEFAULT_ALL);
n.setAutoCancel(true);
nm.notify(uniqueID, n.build());
finish();
}

If you want to start a daemon, then you should look at Service
There are many tutorials out there for sending notification from Service.
And yes, it is possible to send notification from non-UI thread, using Handler.

This is the solution I was looking for, only thing I needed was to get access to the context (my application). NOTE I do believe this is a bad design, but since this is used only for a prototype I'll see it as perfect.
In Android Manifest file declare following
<application android:name="com.example.MyApplication">
</application>
then write the class
public class MyApplication extends Application{
private static Context context;
public void onCreate(){
super.onCreate();
MyApplication.context = getApplicationContext();
}
public static Context getAppContext() {
return MyApplication.context;
}
}
Now every where call MyApplication.getAppContext() to get your application context statically.
private void sentNotation() {
NotificationManager nm = (NotificationManager) MyApplication.getAppContext().getSystemService(Context.NOTIFICATION_SERVICE);
Intent intent = new Intent(MyApplication.getAppContext(), Flippin.class);
PendingIntent pi = PendingIntent.getActivity(MyApplication.getAppContext(), 0, intent, 0);
String body = "This is a message from Adam";
String title = "One new Task";
NotificationCompat.Builder n = new NotificationCompat.Builder(MyApplication.getAppContext());
n.setContentIntent(pi);
n.setSmallIcon(R.drawable.notif);
n.setContentTitle(title);
n.setContentText(body);
n.setDefaults(Notification.DEFAULT_ALL);
n.setAutoCancel(true);
nm.notify(uniqueId, n.build());
finish();
}