kotlin android click again to exit
private var backPressedTime:Long = 0 lateinit var backToast:Toast override fun onBackPressed() { backToast = Toast.makeText(this, "Press back again to leave the app.", Toast.LENGTH_LONG) if (backPressedTime + 2000 > System.currentTimeMillis()) { backToast.cancel() super.onBackPressed() return } else { backToast.show() } backPressedTime = System.currentTimeMillis() }
