alert_custom_layout.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"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/transparent">

    <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent"
            android:background="@drawable/background_white"
            android:padding="8dp">

        <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="This is Alert Dialog"
                android:textSize="18sp"
                android:id="@+id/tv_alert"
                android:textColor="@android:color/black"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintTop_toTopOf="parent"
                android:layout_marginTop="3dp"/>

        <EditText
                android:layout_width="180dp"
                android:layout_height="wrap_content"
                android:layout_marginTop="5dp"
                android:layout_marginStart="5dp"
                app:layout_constraintStart_toEndOf="@id/tv_alert"
                android:hint="Name"
                android:background="@null"
                android:id="@+id/et_name"
                android:layout_marginLeft="5dp"
                app:layout_constraintTop_toTopOf="parent"/>

        <Button
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/lottie_anim"
                android:text="Ok"
                android:layout_marginTop="5dp"
                android:textAllCaps="false"
                android:id="@+id/btn_ok"/>

        <com.airbnb.lottie.LottieAnimationView
                android:layout_width="200dp"
                android:layout_height="80dp"
                app:layout_constraintStart_toStartOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintTop_toBottomOf="@+id/tv_alert"
                android:layout_marginTop="10dp"
                android:id="@+id/lottie_anim"
                app:lottie_autoPlay="true"
                android:adjustViewBounds="true"/>

    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>