AlertDialog in Android Api 29 used to dim the screen when it was shown, but in Api 34 instead it creates a shadow around the dialog

Question

AlertDialog in Android Api 29 used to dim the screen except for the dialog when it was shown, but in Api 34 instead it creates a shadow around the dialog.

The AlertDialog in android used to dim the screen like this enter image description here

but now it just adds shadow around the box like this enter image description here

I have tried the methods dialog.window?.setDimAmount() I have tried github libraries

But they all dont work

Kotlin Code

    private fun showPopup(){
        val dialogBuilder: AlertDialog.Builder = AlertDialog.Builder(this)
        val dialog = dialogBuilder.create()
        val inflater = this.layoutInflater
        val dialogView: View = inflater.inflate(R.layout.popup_sharing_number, null)
        dialog.setView(dialogView)
        dialog.show()
    }

Layout Code

<!-- popup_layout.xml -->
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:background="@drawable/background_alert_box"
    android:padding="10dp">


    <ImageView
        android:layout_marginTop="5dp"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:src="@drawable/icon_alert"
        android:layout_gravity="center"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Why do I need to share my number?"
        android:textSize="26sp"
        android:textAlignment="center"
        android:textStyle="bold"
        android:textColor="@color/primaryColor"/>


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:padding="16dp"
        android:textAlignment="center"
        android:text="For security reasons, we only use phone number as an authentication method. This counts for Students, Parents and Tutors. We will never charge via phone number"
        android:textColor="#7E8082"
        android:textSize="20sp" />

    <Button
        android:id="@+id/btnClose"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textColor="@color/white"
        android:text="Close"
        android:background="@drawable/button_primary"
        android:textSize="16sp"
        android:layout_gravity="center_horizontal"
        android:padding="12dp"/>

</LinearLayout>

I want it to Dim in all versions

Answer 1

This was an emulator rendering bug, now fixed as of January 2024. Now dialogs render the dimmed background correctly. https://issuetracker.google.com/issues/289117017

Bug present in API 34 v8a emulator revision 11, emulator 33.1.23

Bug fixed in API 34 v8a emulator revision 12, emulator 33.1.24