How to use data-binding in Dialog?

Question

I am having trouble in implementing databinding in a Dialog. Is it possible?

Below is my xml.

<data>

    <variable
        name="olaBooking"
        type="com.example.myapp.viewmodels.ViewModel" />
</data>

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

    <android.support.v7.widget.CardView
        android:id="@+id/cv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="15dp"
        android:elevation="4dp"
        android:padding="15dp">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@color/colorPrimary"
                android:gravity="center"
                android:padding="15dp"
                android:text="OLA Cab Booked !"
                android:textAppearance="@style/TextAppearance.AppCompat.Body1" />

            <View
                android:layout_width="match_parent"
                android:layout_height="2dp"
                android:background="@color/colorPrimaryDark" />

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:gravity="start|center"
                android:padding="15dp"
                android:text="Car Details" />

            <View
                android:layout_width="match_parent"
                android:layout_height="2dp"
                android:background="@color/colorPrimaryDark" />

            <TextView
                android:id="@+id/driverName"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:padding="5dp"
                android:text="@{olaBooking.driverName}" />

            <TextView
                android:id="@+id/carModel"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:padding="5dp"
                android:text="@{olaBooking.getCarName}" />

            <TextView
                android:id="@+id/carNo"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:padding="5dp"
                android:text="@{olaBooking.getCabNo}" />

            <TextView
                android:id="@+id/eta"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:padding="5dp"
                android:text="@{olaBooking.getEta}" />
        </LinearLayout>
    </android.support.v7.widget.CardView>
</LinearLayout>

I want to bind the above layout in a Dialog. How is it possible? Below is my java code i tried but it's not working

        dialog.setContentView(R.layout.dialog_ola_booking_confirmed);
    DialogOlaBookingConfirmedBinding binding = DataBindingUtil.inflate(
            LayoutInflater.from(dialog.getContext()),
            R.layout.dialog_ola_booking_confirmed,
            (ViewGroup) dialog.findViewById(R.id.cv),
            false);
    ViewModel viewModel = new ViewModel(this, event.olaBooking);

Answer 1

If your dialog shrink, Try this

I tried @Dullahan's answer, however the dialog seemed to shrink strangely. So I tried another ways, finally found solution.

<layout
    xmlns:android="http://schemas.android.com/apk/res/android">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:id="@+id/root"
        android:layout_width="300dp"
        android:layout_height="500dp">

        <!-- ... -->

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

class CustomDialog(context: Context) : Dialog(context) {
    private lateinit var binding: CustomDialogBinding

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.custom_dialog)
        binding = CustomDialogBinding.bind(findViewById(R.id.root))
    }
}