How to run two functions on AlertDialog Positive button click?

Issue

I am new in android, I created a alertdialog in my project that is basic and it has just [a message and one POSITIVE BUTTON and one NEGATIVE BUTTON] the message is a question that asks [Do you want to sign out from account?] and by pressing the NEGATIVE BUTTON closes the alertdialog, and by pressing the POSITIVE BUTTON it also closes the alertdialog and do nothing. I want to NEGATIVE BUTTON just close the alertdialog same as it does, but When I press the POSITIVE BUTTON it do two works for me [1- sign out from app and 2- start my activity which is called LoginActivity.kt]

Note : I already do that two works by another layout that is activity_sign_out.xml that contains a button for doing that two works. but I want to do that two works when alertdialog is showing just by pressing POSITIVE BUTTON.

I hope my question be clear for you.

I tryed to make that but it does'nt work, here is my codes :

1- my alertdialog :

import android.content.DialogInterface
import android.content.Intent
import android.content.res.Configuration
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Toast
import androidx.appcompat.app.ActionBarDrawerToggle
import androidx.appcompat.app.AlertDialog
import androidx.appcompat.widget.Toolbar
import androidx.drawerlayout.widget.DrawerLayout
import com.google.android.material.navigation.NavigationView
import com.google.firebase.auth.FirebaseAuth
import java.util.*

class DashboardActivity : AppCompatActivity() {
private lateinit var auth: FirebaseAuth
private lateinit var binding: ActivityDashboardBinding
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    loadLocale()
    binding = ActivityDashboardBinding.inflate(layoutInflater)
    val view = binding.root
    setContentView(view)
    val drawerLayout = findViewById<DrawerLayout>(R.id.drawerLayout)
    val toolbar = findViewById<Toolbar>(R.id.toolbar)
    val navView = findViewById<NavigationView>(R.id.nav_view)
    val toggle = ActionBarDrawerToggle(this,drawerLayout,toolbar,R.string.open,R.string.close)
    toggle.isDrawerIndicatorEnabled = true
    supportActionBar?.setDisplayShowTitleEnabled(false)
    drawerLayout.addDrawerListener(toggle)
    toggle.syncState()
    navView.setNavigationItemSelectedListener {
        when(it.itemId){
            R.id.itmSignOut ->startActivity(Intent(this,SignOut::class.java))
            R.id.itmLanguage ->showChangeLanguageDialog()
            R.id.itmProfile ->basicAlert()
        }
        true
    }
}
private fun basicAlert(){
    val positiveButtonClick = { _: DialogInterface, _: Int -> }
    val negativeButtonClick = { _: DialogInterface, _: Int -> }
    val builder = AlertDialog.Builder(this)
    with(builder) {
        setMessage(R.string.do_you_want_to_sign_out_from_your_my_conquer_account)
        setPositiveButton(R.string.yes, ({ _: DialogInterface, _: Int ->
            positiveButtonClick
            auth.signOut()
            startActivity(Intent(this,LoginActivity::class.java))
            finish()
        }))
        setNegativeButton(R.string.no, negativeButtonClick)
        show()
    }
}

2- my SignOut.kt :

class SignOut : AppCompatActivity() {
private lateinit var auth: FirebaseAuth
private lateinit var binding: ActivitySignOutBinding
override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    binding = ActivitySignOutBinding.inflate(layoutInflater)
    setContentView(R.layout.activity_sign_out)
    val view = binding.root
    setContentView(view)
    initData()
}
private fun initData(){
    auth = FirebaseAuth.getInstance()
    setUserEmail()
    clickListener()
}
private fun clickListener(){
    binding.btnSignOut.setOnClickListener{
        auth.signOut()
        startActivity(Intent(this,LoginActivity::class.java))
        finish()
    }
}
private fun getCurrentUserEmail():String? {
    return auth.currentUser?.email
}
@SuppressLint("SetTextI18n")
private fun setUserEmail(){
    binding.tvUserEmail.text = "Welcome "+getCurrentUserEmail()
}
}

3- and the activity_sign_out.xml :

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".SignOut">

    <TextView
        android:id="@+id/tvUserEmail"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/welcome"
        android:textAlignment="center"
        android:textSize="15dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.appcompat.widget.AppCompatButton
        android:id="@+id/btnSignOut"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:layout_marginStart="20dp"
        android:layout_marginEnd="20dp"
        android:background="@drawable/custom_button"
        android:text="@string/sign_out"
        android:textAllCaps="false"
        android:textColor="@color/White"
        android:textSize="18dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.8"
        tools:ignore="TouchTargetSizeCheck,TextContrastCheck" />

</androidx.constraintlayout.widget.ConstraintLayout>

finally after running the app and coding for fixing it, I added the auth.signOut() startActivity(Intent(this,LoginActivity::class.java)) finish() to my Alertdialog but it shows the errors for red Intent : [None of the following functions can be called with the argument supplied.

• (Content!, Class<*>!)defined in android.content.Intent
• (String!, Uri!)defined in android.content.Intent]

thank you for helping me! take care.

Solution

As you can see in Android Studio, this within the with block refers to the AlertDialog.Builder instance. To refer to the Activity you must say so explictly:

setPositiveButton(R.string.yes) { _: DialogInterface, _: Int ->
    auth.signOut()
    startActivity(Intent(this@DashboardActivity, LoginActivity::class.java))
    finish()
}

Answered By - Michael