Learn Android with Java and Kotlin

Android alert dialog using Kotlin

During the flow of any app we often need to prompt the user to make some decision e.g. Deleting a file , posting comment etc . Below is the most simple way to show a promt . Here we are using AlertDialog to show a single button dialog , we can display upto three buttons using AlertDialog .

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {


            val dialogBuilder=AlertDialog.Builder(this)
            dialogBuilder.setMessage("Kotlin is awesome")
            dialogBuilder.setPositiveButton("True"){ dialogInterface: DialogInterface, i: Int ->
                Toast.makeText(this,"Kotlin is awesome",Toast.LENGTH_LONG).show()



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