验证电子邮件Firebase Android

Question

我希望在用户提交电子邮件和密码后，将自动发送验证电子邮件。我做了一个发送验证电子邮件的功能，但是它不起作用，只能保存电子邮件并通过我的真实Firebase控制台传递，但不发送验证电子邮件。我尝试了一些代码，但似乎没有任何效果，这是我最新的代码，有什么问题吗？

class Activity2 : AppCompatActivity() {

private val personCollectionRef = Firebase.firestore.collection("persons")
companion object {
    const val REQUEST_ON_GALLERY = 1001
}
private lateinit var auth: FirebaseAuth

private val _tag = "Activity2"

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity2)
    auth = FirebaseAuth.getInstance()



    btnregis.setOnClickListener {
      val job = lifecycleScope.launch(Dispatchers.IO) {
            //two function
            val user = async { sussavePerson() }
            val registeremail = async { susregistrasiAkun() }
            Log.d(_tag, "Saving Person data ${user.await()}")
            Log.d(_tag, "Saving email ${registeremail.await()}")
        }
        runBlocking {
            job.join()
            activity()
            Log.d(_tag,"Hai")
        }
    }
 }
 // here my function for registration and sending verification email
  private    fun  susregistrasiAkun(){
        registrasiAkun()
    }
private fun registrasiAkun() {
    val email = etemail.text.toString()
    val password = etpassword.text.toString()
    if(email.isNotEmpty() && password.isNotEmpty()){
        CoroutineScope(Dispatchers.IO).launch {
         try {
               auth.createUserWithEmailAndPassword(email,password).await()
                withContext(Dispatchers.Main){
                    checkLoggedInState()
                    //here i want send email verification function
                withContext(Dispatchers.IO){
                    email()
                }
               }
            }catch (e:Exception){
                withContext(Dispatchers.Main){
                    Toast.makeText(this@Activity2,e.message,Toast.LENGTH_LONG).show()
                }
            }
        }
    }
}
private fun checkLoggedInState(){
    if(auth.currentUser == null){
        tvLoggedIn.text =  getString(R.string.loggedin)
    }else{
        tvLoggedIn.text = getString(R.string.loggedin2)
    }
}
// function for sending email
private fun email() {
        val user = auth.currentUser
        user!!.sendEmailVerification()
            .addOnCompleteListener { task ->
                if (task.isSuccessful) {
                    Log.d(_tag, "Email sent.")
                }
            }
    }