Code Ronna

ProgressDialog has been deprecated in Android since API level 26.

Quote : ProgressDialog | Android developer

This class was deprecated in API level 26.
ProgressDialog is a modal dialog, which prevents the user from interacting with the app. Instead of using this class, you should use a progress indicator like ProgressBar, which can be embedded in your app’s UI. Alternatively, you can use a notification to inform the user of the task’s progress.

URL : https://developer.android.com/reference/android/app/ProgressDialog

So you need to display ProgressDialog in your own implementation.

The alternative methods are presented in this article.

1. Create layout for ProgressDialog

Create custom layout for ProgressDialog.

Sample code – dialog_progress.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">

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        android:layout_marginBottom="16dp"
        android:orientation="vertical"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <ProgressBar
            android:id="@+id/progress_bar"
            style="@style/Widget.AppCompat.ProgressBar.Horizontal"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="horizontal">

            <TextView
                android:id="@+id/progress_1_text_view"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:text="0%" />

            <TextView
                android:id="@+id/progress_2_text_view"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:gravity="right"
                android:text="0/100" />
        </LinearLayout>
    </LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

The layout having 1 ProgressBar and 2 TextView

2. Create a class extending DialogFragment

Create ProgressDialog class extemding DialogFragment

Sample code – ProgressDialog.kt

class ProgressDialog : DialogFragment() {
    private lateinit var progressBar: ProgressBar
    private lateinit var progress1TextView: TextView
    private lateinit var progress2TextView: TextView

    companion object {
        fun newInstance(title: String, message: String): ProgressDialog {
            val instance = ProgressDialog()
            val arguments = Bundle()
            arguments.putString("message", message)
            arguments.putString("title", title)
            instance.arguments = arguments
            return instance
        }
    }

    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
        val title = requireArguments().getString("title")
        val message = requireArguments().getString("message")

        val builder = AlertDialog.Builder(requireActivity())
        val inflater = requireActivity().layoutInflater
        val view = inflater.inflate(R.layout.dialog_progress, null)
        progressBar = view.findViewById(R.id.progress_bar)
        progress1TextView = view.findViewById(R.id.progress_1_text_view)
        progress2TextView = view.findViewById(R.id.progress_2_text_view)
        builder.setTitle(title)
        builder.setMessage(message)
        builder.setView(view)
        return builder.create()
    }

    fun setProgress(progress: Int){
        if(this::progressBar.isInitialized) {
            progressBar.progress = progress
            progress1TextView.text = "${progress}%"
            progress2TextView.text = "${progress}/100"
        }
    }
}

This class has minimal functionality as a ProgressDialog.

• Show title & message
• Show & update progress on ProgressBar
• Show & update progress text

Customize this class as needed.

3. Show & update ProgressDialog

Finally you can show ProgressDialog.

Sample code in MainActivity.kt

/// Show ProgressDialog with title & msg
val progressDialog = ProgressDialog.newInstance(
            "Progress Dialog", "Downloading...")
progressDialog.show(supportFragmentManager, TAG)

/// Simulation of download process
progressDialog.setprogress(10)
...
progressDialog.setprogress(50)
...
progressDialog.setprogress(100)

Example of displayed progressDialog (51/100) :

Example of displayed ProgressDialog (100/100)

Well done!!