progressBarAndStopStart.kt

private fun progressBarGoster(){
        progress_Login.visibility = View.VISIBLE
    }
private fun progressBarGizle(){
        progress_Login.visibility = View.INVISIBLE
    }
override fun onStart() {
        super.onStart()
        FirebaseAuth.getInstance().addAuthStateListener(mAuthStateListener)
    }
override fun onStop() {
        super.onStop()
        FirebaseAuth.getInstance().removeAuthStateListener {mAuthStateListener}
    }