Persistent service icon in notification bar

Question

I am trying to figure out how to show that my service is running with a persistent notification icon. Many examples I\'ve found only send a dismissable message to the notifi

Answer 1

it should be the same as a dismissable message except you change the Flag.

Notification.FLAG_ONGOING_EVENT

instead of

Notification.FLAG_AUTO_CANCEL

When a notification is clicked the intent you send is run, so you make sure that Activity does whatever task you want.

private void showRecordingNotification(){
    Notification not = new Notification(R.drawable.icon, "Application started", System.currentTimeMillis());
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, main.class), Notification.FLAG_ONGOING_EVENT);        
    not.flags = Notification.FLAG_ONGOING_EVENT;
    not.setLatestEventInfo(this, "Application Name", "Application Description", contentIntent);
    mNotificationManager.notify(1, not);
}

Answer 2

I know this is an old question, but it was first on a google results page so I'll add information to help others.

Persistent Notifications

The trick is to add .setOngoing to your NotificationCompat.Builder

Close Button

A button that opens the app and shuts the service down requires a PendingIntent

An Example

This example shows a persistent notification with a close button that exits the app.

MyService:

private static final int NOTIFICATION = 1;
public static final String CLOSE_ACTION = "close";
@Nullable
private NotificationManager mNotificationManager = null;
private final NotificationCompat.Builder mNotificationBuilder = new NotificationCompat.Builder(this);

private void setupNotifications() { //called in onCreate()
    if (mNotificationManager == null) {
        mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    }
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0,
            new Intent(this, MainActivity.class)
                    .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP),
            0);
    PendingIntent pendingCloseIntent = PendingIntent.getActivity(this, 0,
            new Intent(this, MainActivity.class)
                    .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP)
                    .setAction(CLOSE_ACTION),
            0);
    mNotificationBuilder
            .setSmallIcon(R.drawable.ic_notification)
            .setCategory(NotificationCompat.CATEGORY_SERVICE)
            .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
            .setContentTitle(getText(R.string.app_name))
            .setWhen(System.currentTimeMillis())
            .setContentIntent(pendingIntent)
            .addAction(android.R.drawable.ic_menu_close_clear_cancel,
                    getString(R.string.action_exit), pendingCloseIntent)
            .setOngoing(true);
}

private void showNotification() {
    mNotificationBuilder
            .setTicker(getText(R.string.service_connected))
            .setContentText(getText(R.string.service_connected));
    if (mNotificationManager != null) {
        mNotificationManager.notify(NOTIFICATION, mNotificationBuilder.build());
    }
}

MainActivity must handle the close intents.

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    String action = intent.getAction();
    if (action == null) {
        return;
    }
    switch (action) {
        case MyService.CLOSE_ACTION:
            exit();
            break;
    }
}    

private void exit() {
    stopService(new Intent(this, MyService.class));
    finish();
}

AnotherActivity must be finish and send an exit intent to MainActivity

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    String action = intent.getAction();
    if (action == null) {
        return;
    }
    switch (action) {
        case MyService.CLOSE_ACTION:
            exit();
            break;
    }
}

/**
 * Stops started services and exits the application.
 */
private void exit() {
    Intent intent = new Intent(getApplicationContext(), MainActivity.class);
    intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    intent.setAction(Stn1110Service.CLOSE_ACTION);
    startActivity(intent);
}

Can anyone point me to resources or tutorial

http://developer.android.com/training/notify-user/build-notification.html