Develop Reference

local Notification on click open an activity

I have a local notification which is set in one of my receivers. Onclick of notification I want to open a specific activity. Below is my code.
NotificationCompat.Builder builder =
(NotificationCompat.Builder) new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Its Your day!!")
.setContentText(message)
.setAutoCancel(true);
Intent notificationIntent = new Intent(context, MainActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(contentIntent);
// Add as notification
NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
manager.notify(times, builder.build());
But this is not working. On Click of notification it just removes notification from status bar. Am I missing anything ?

try this :
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
instead of this :
Intent notificationIntent = new Intent(context, MainActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent contentIntent = PendingIntent.getActivity(context, 0, notificationIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
use this codes before your notification builder code.
now this is the full version :
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
NotificationCompat.Builder builder =
(NotificationCompat.Builder) new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Its Your day!!")
.setContentText(message)
.setAutoCancel(true)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(times, notificationBuilder.build());
try to use this. i hope you will get you desire answer.
UPDATE
here is the sample project : https://github.com/ImtiazDipto01/SimpleNotification

Add Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP as Flag on your `Intent. Like -
notificationIntent .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
Also provide unique id for notification. like -
int uniqueNotificationId = (int) (System.currentTimeMillis() & 0xfffffff);
PendingIntent contentIntent = PendingIntent.getActivity(context, uniqueNotificationId , notificationIntent,
PendingIntent.FLAG_UPDATE_CURRENT);
Also on -
manager.notify(uniqueNotificationId , builder.build());

Notification disappear after activity finish

I have an activity named A which start from a broadcast receiver. Activity A triggered a notification but it disappear automatically when activity destroy(finish). But I want to keep this notification until the user click or manually clear the notification.
How activity start from broadcast receiver
Intent i = new Intent(context,A.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
i.putExtras(intent.getExtras());
context.startActivity(i);
Notification
Intent notificationIntent = new Intent();
notificationIntent.setClass(context,B.class);
notificationIntent.setAction(Intent.ACTION_MAIN);
notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER);
notificationIntent.setFlags( Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
Notification notification = new NotificationCompat.Builder(context)
.setSmallIcon(R.drawable.notification_small)
.setContentTitle(status)
.setTicker(status)
.setAutoCancel(false)
.setContentText(message)
.setDefaults(Notification.DEFAULT_SOUND)
.setLargeIcon(
Bitmap.createScaledBitmap(icon, 128, 128, false))
.setContentIntent(pendingIntent)
.build();
manifest options
<activity android:name="com.example.activity.A"
android:screenOrientation="portrait"
android:launchMode="singleTask"
android:taskAffinity=""
android:excludeFromRecents="true"/>
Note: I also tried singleInstance but no luck.
Edit(Fixed)
I made a silly mistake. I called clearAll() instead of cancel a specific notification in onDestroy() function.

I think you are cancelling all the notification in your app when the activity is destroyed.

remove autocancel() totally and try this,
public static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
NotificationCompat.Builder builder;
mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,new Intent(this, MenuActivity.class), PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_ONE_SHOT);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this).setSmallIcon(R.drawable.icon).setContentTitle(" ").
setStyle(new NotificationCompat.BigTextStyle().bigText(bundle.get("").toString())).
setContentText(bundle.get("").toString());
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());

pressing on notification opens the same activity twice

If i have an activity that closed by a user (user pressed on home so the app is still in app stack)
and then he gets a notification, when he presses on it i start an activity
and now the same activity is opened twice.
How can i prevent this from happening?
My CODE:
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, MainActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
NotificationManager mNotificationManager = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.logo)
.setContentTitle("Title")
.setStyle(new NotificationCompat.BigTextStyle().bigText(msg))
.setAutoCancel(true)
.setLights(GCMSIntentService.PURPLE, 500, 500)
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setContentText(msg);
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(1, mBuilder.build());

android:launchMode="singleTask"
in manifest Or,
use it as flag for your intent.

You need to add FLAG_ACTIVITY_CLEAR_TOP,FLAG_ACTIVITY_SINGLE_TOP,FLAG_ACTIVITY_NEW_TASK flags to your notification intent.So change
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
to
Intent notificationIntent = new Intent(this, MainActivity.class);
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_NEW_TASK);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent , PendingIntent.FLAG_UPDATE_CURRENT);

by android:launchMode="singleTask", if an instance of the activity already exists in a separate task, the system routes the intent to the existing instance through a call to its onNewIntent() method, rather than creating a new instance and adding flags to the intent
FLAG_ACTIVITY_NEW_TASK,FLAG_ACTIVITY_CLEAR_TOP,FLAG_ACTIVITY_SINGLE_TOP
refer task and back stack

Here's the error.
notify functions id has to be changed everytime. You're giving it 1 everytime. thats the error.
mNotificationManager.notify(1, mBuilder.build());
give a different id everytime. it will work like a charm.
For example, use sharedPrefences to provide different id's everytime.
check this,
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, MainActivity.class), PendingIntent.FLAG_UPDATE_CURRENT);
NotificationManager mNotificationManager = (NotificationManager)
this.getSystemService(Context.NOTIFICATION_SERVICE);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.logo)
.setContentTitle("Title")
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(msg))
.setAutoCancel(true)
.setLights(GCMSIntentService.PURPLE, 500, 500)
.setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
.setContentText(msg);
mBuilder.setContentIntent(contentIntent);
SharedPreferences sp = context.getSharedPreferences("randomidfornotification", Activity.MODE_PRIVATE);
myIntValue = sp.getInt("notificationid", 0);
mNotificationManager.notify(1, mBuilder.build());
SharedPreferences sp1 = context.getSharedPreferences("randomidfornotification", Activity.MODE_PRIVATE);
SharedPreferences.Editor editor = sp1.edit();
editor.putInt("notificationid", myIntValue+1);
editor.apply();

Pending intent in notification not working

Below is my block of code which should open NotificationActivity when the notification is tapped on. But its not working.
private void setNotification(String notificationMessage) {
Uri alarmSound = getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
mNotificationManager = getApplication().getSystemService(Context.NOTIFICATION_SERVICE);
Intent notificationIntent = new Intent(getApplicationContext(), NotificationActivity2.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0,notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(getApplicationContext())
.setSmallIcon(R.drawable.logo)
.setContentTitle("My Notification")
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(notificationMessage))
.setContentText(notificationMessage).setAutoCancel(true);
mBuilder.setSound(alarmSound);
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}

try this:
private void setNotification(String notificationMessage) {
//**add this line**
int requestID = (int) System.currentTimeMillis();
Uri alarmSound = getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
mNotificationManager = getApplication().getSystemService(Context.NOTIFICATION_SERVICE);
Intent notificationIntent = new Intent(getApplicationContext(), NotificationActivity2.class);
//**add this line**
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
//**edit this line to put requestID as requestCode**
PendingIntent contentIntent = PendingIntent.getActivity(this, requestID,notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(getApplicationContext())
.setSmallIcon(R.drawable.logo)
.setContentTitle("My Notification")
.setStyle(new NotificationCompat.BigTextStyle()
.bigText(notificationMessage))
.setContentText(notificationMessage).setAutoCancel(true);
mBuilder.setSound(alarmSound);
mBuilder.setContentIntent(contentIntent);
mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
}

You might be using a notification id equal to 0. There is known issue with notification id being 0. If you will use any other id, it should work.

I added task builder and the below block code worked for me
Intent intent = new Intent(context, HomeActivity.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(context);
stackBuilder.addParentStack(SplashActivity.class);
stackBuilder.addNextIntent(intent);
PendingIntent pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);

Try checking your AndroidManifest.xml, double check if you are navigating to an activity with an intent-filter main action, launcher category
For example,
I couldn't make my pending intent to navigate to HomeActivity but it works when navigating to SplashScreen
Hope this helps.

If the app is already running then you need to handle it in onNewIntent
#Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
//Handle intent here...
}

Added the requestid, but the intent was still not opening.
This is the solution that worked for me:
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
Setting those flags to clear the activities below the intent activity.

Android notification Resume Activity

I'm trying to make a notification when users pause my app. So to make it easier, users can go quickly to the application using notificaction. This is the code i'm using. It works for all versions before android 4 and i don't know which is the problem
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Titulo")
.setContentText("Titulo");
mBuilder.setOngoing(true);
// Creates an explicit intent for an Activity this
Intent resultIntent = new Intent(getApplicationContext(), MainActivity.class);
// put the flags
resultIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
// Adds the back stack for the Intent (but not the Intent itself)
stackBuilder.addParentStack(MainActivity.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent =
stackBuilder.getPendingIntent(
0,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// mId allows you to update the notification later on.
mNotificationManager.notify(mId, mBuilder.build());
So when i press the notification in android 4.0 and higher, the activity is created again instead of resume. any help please, i can't make it work.
EDIT ( forget about manifest singletop )
android:launchMode="singleTop" same result, not working...
My activity contains a map. I'm using the new version of google maps. v2.

I just tried PendingIntent.FLAG_CANCEL_CURRENT and seems to work for me
public void showNotification(String header,String message){
// define sound URI, the sound to be played when there's a notification
Uri soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Intent intent = new Intent(this, MainActivity.class);
//PendingIntent.FLAG_CANCEL_CURRENT will bring the app back up again
PendingIntent pIntent = PendingIntent.getActivity(MainActivity.this,PendingIntent.FLAG_CANCEL_CURRENT, intent, 0);
Notification mNotification = new Notification.Builder(this)
.setContentTitle(header)
.setContentText(message)
.setSmallIcon(R.drawable.ic_launcher)
.setContentIntent(pIntent)
.setSound(soundUri)
.addAction(R.drawable.ic_launcher, "View", pIntent)
.addAction(0, "Remind", pIntent)
.setOngoing(true)//optional
.build();
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
notificationManager.notify(0, mNotification);
}

Use android:launchMode="singleTop" in the manifest declaration of MainActivity

The only solution that actually worked for me after doing a lot of search is to do the following :
NotificationCompat.Builder builder = new NotificationCompat.Builder(this).set...(...).set...(..);
Intent resultIntent = new Intent(this, MainClass.class);
resultIntent.setAction("android.intent.action.MAIN");
resultIntent.addCategory("android.intent.category.LAUNCHER");
PendingIntent resultPendingIntent = PendingIntent.getActivity(this, 0, resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);
builder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
mNotificationManager.notify(0, builder.build());
this opens your current activiy without creating another one !

SOLUTION provided by #Patrick taken from the question and added as answer:
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.logo)
.setContentTitle(getString(R.string.txt))
.setContentText(getString(R.string.txt));
mBuilder.setOngoing(true);
// Creates an explicit intent for an Activity in your app
Intent resultIntent = new Intent(this, Activity.class);
resultIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
// The stack builder object will contain an artificial back stack for the
// started Activity.
// This ensures that navigating backward from the Activity leads out of
// your application to the Home screen.
TaskStackBuilder stackBuilder = TaskStackBuilder.from(this);
// Adds the back stack for the Intent (but not the Intent itself)
stackBuilder.addParentStack(Activity.class);
// Adds the Intent that starts the Activity to the top of the stack
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent = PendingIntent.getActivity(this, 0, resultIntent, 0);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// mId allows you to update the notification later on.
mNotificationManager.notify(mId, mBuilder.getNotification());