Develop Reference

How can i pass extra string from Notification to activity

I am trying to pass value of my push notification to my activity. But it always returns null.
Here is how I am trying to pass extra string:
Intent notificationIntent = new Intent(context, Register.class);
notificationIntent.putExtra("NotificationMessage", new_key.toString());
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent intent = PendingIntent.getActivity(context, 0, notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
// Play default notification sound
notification.defaults |= Notification.DEFAULT_SOUND;
notification.defaults |= Notification.DEFAULT_VIBRATE;
notificationManager.notify(0, notification);
Here is my activity where I am trying to get this extra string.
Intent intent = getIntent();
String msg = intent.getStringExtra("NotificationMessage");
Toast.makeText(this, "Hello"+msg, Toast.LENGTH_LONG).show();
This toast always show me " Hello null ". Can anyone please help?
Thanks in advance.

Add PendingIntent to your notification via .setContentIntent(). It will trigger intent when notification is clicked.
Notification notification = new NotificationCompat.Builder(context)
...
.setContentIntent(intent)
...
.build();

Customize Android Notification layout and click of elements

I want to show image from Url in notification panel for that purpose I am trying to make custom UI with following code but its not working
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
Notification notification = new Notification(icon, "Custom Notification", when);
NotificationManager mNotificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
RemoteViews contentView = new RemoteViews(getPackageName(), R.layout.custom_notification);
contentView.setImageViewResource(R.id.image, R.drawable.ic_launcher);
contentView.setTextViewText(R.id.title, "Custom notification");
contentView.setTextViewText(R.id.text, "This is a custom layout");
notification.contentView = contentView;
Intent notificationIntent = new Intent(this, MainActivity.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
notification.contentIntent = contentIntent;
notification.flags |= Notification.FLAG_NO_CLEAR; //Do not clear the notification
notification.defaults |= Notification.DEFAULT_LIGHTS; // LED
notification.defaults |= Notification.DEFAULT_VIBRATE; //Vibration
notification.defaults |= Notification.DEFAULT_SOUND; // Sound
mNotificationManager.notify(1, notification);
and how I can handle the click of each element like image TextView etc. I haven't found any stuff to handle click of each element.

Use remoteView.setOnClickPendingIntent(viewId, pendingIntent) to give click actions to views in your RemoteViews object. This will allow you to do things like start a Service or send a broadcast (to be received by a BroadcastReceiver).

Displaying multiple notifications on status bar

I am developing an application. I want to display multiple notification to status bar area. But every time it's showing previous message. I have tried many things but its not working, how can I display multiple notification in an Android status bar.
Below is my code :
private void Notify(String Title, String Message)
{
NotificationManager notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
#SuppressWarnings("deprecation")
Notification notification = new Notification(R.drawable.ic_launcher,Title, System.currentTimeMillis());
Log.e("NotificationManager","notify");
Intent notificationIntent = new Intent(getBaseContext(), NoteEdit.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK);
Log.e("NotificationManager","notificationIntent");
PendingIntent pendingIntent = PendingIntent.getActivity(getBaseContext(), 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT);
notification.setLatestEventInfo(getBaseContext(), Title,Message, pendingIntent);
notification.defaults |= Notification.DEFAULT_SOUND;
notification.defaults |= Notification.DEFAULT_VIBRATE;
notification.defaults |= Notification.DEFAULT_LIGHTS;
notification.flags |= Notification.FLAG_ONGOING_EVENT;
notificationManager.notify(NOTIFICATION_ID , notification);
}
}

use this at place of 0 you will have to use a variable and increment it every time
PendingIntent contentIntent = PendingIntent.getActivity(getBaseContext(),
index++, notificationIntent, PendingIntent.FLAG_ONE_SHOT);

To show many notifications on the status bar

In my program, just one notification shown. I want to show many notifications in the status bar. Here is my code.
NotificationManager nm = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
long when = System.currentTimeMillis(); // notification time
Notification notification = new Notification(R.drawable.ic_launcher, "reminder", when);
notification.defaults |= Notification.DEFAULT_SOUND;
notification.flags |= notification.FLAG_AUTO_CANCEL;
Intent notificationIntent = new Intent(this, Goo.class);
PendingIntent contentIntent = PendingIntent.getActivity(this, 0, notificationIntent , 0);
notification.setLatestEventInfo(getApplicationContext(), "It's about time", "You should open the app now", contentIntent);
nm.notify(NOTIF_ID, notification);

calling tabhost on notification click

i have tried notification sample.
i can able to open activity on notification click event.
is it possible to open the desired tab widget on notification click event.
any any body help me to open the tab host on notification click event.
please check the below code..
int icon = R.drawable.ic_launcher;
long when = System.currentTimeMillis();
NotificationManager notificationManager = (NotificationManager)
context.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
String title = context.getString(R.string.app_name);
notification.defaults |= Notification.DEFAULT_SOUND;
notification.defaults |= Notification.DEFAULT_VIBRATE;
Intent notificationIntent = new Intent(context, Viewmessage.class);
notificationIntent.putExtra("NotificationMessage",message);
notificationIntent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingNotificationIntent = PendingIntent.getActivity(context,0,notificationIntent,PendingIntent.FLAG_UPDATE_CURRENT);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notification.setLatestEventInfo(context, title, message, pendingNotificationIntent);
notificationManager.notify(0, notification);

Assuming you're using a TabHost -- If you need to set the current tab programmatically you can use TabHost#setCurrentTab(int) or TabHost#setCurrentTabByTag(String)