How to handle NotificationBar in android -

How to handle NotificationBar in android -

i tried code form reply of question: how set media controller button on notification bar?

by calling

shownotification()

method app gets closed. how prevent this? , how can handle method called if mobile phone api >= 16. because think available since api 16.

i've read, there solution lower api:

import android.support.v4.app.notificationcompat;

but didn't got working, wanted prevent calling it.

and can delete notification bar, ondestroy() of app?

the code on page hard case using remoteviews, , looks dubious anyway. (e.g. creates subclass of notification constructor creates notification.)

the normal approach utilize notificationcompat.builder build notification, , notificationmanager or notificationmanagercompat show , cancel it. see notifications api guide details , illustration code.

also see notifying user documentation , notifications design guide.

generally, app should show notification when activity not visible. when user taps on notification, should open activity should in turn cancel notification.

android android-notifications android-notification-bar