How can i make disable Notification in preference in android

Question

How can i make disable Notification in preference in android?(if the user do not like the see the notification but the notification still in the app) i already doing check Box in xml

      <CheckBoxPreference 
      android:title="Disable Notification"
      android:defaultValue="true"
      android:key="checkbox"
      android:summary="Check the Box"/>

but i do not know what is the code to disable Notification, Thank you in advance !

Answer 1

notificationManager.cancelAll()

....那就是通知管理器对象