# Cancel this notification and hide it if it is currently displayed
	fun cancel
	do
		var id = self.id
		if id != null then
			sys.jni_env.push_local_frame(8)

			var manager = app.native_context.notification_manager
			manager.cancel(tag.to_java_string, id)

			self.id = null

			sys.jni_env.pop_local_frame
		end
	end