package com.example.sergey.notify import android.app.Activity import android.app.NotificationManager import android.content.Context import android.os.Bundle import android.widget.TextView class NotificationActivity : Activity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.notification) //---look up the notification manager service--- var nm : NotificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager //---cancel the notification that we started--- val notiId = intent.extras.getInt("notificationID") nm.cancel(notiId) // OR just: // nm.cancelAll() val tv = findViewById(R.id.details) tv.setText( "${tv.text}: id = ${notiId}" ) } }