How to navigate from Dialog to Fragment in Navigation Component?

Question

I am trying to navigation from DialogFragment to Fragment in Navigation Component, but getting weird result.

When I navigate from DialogFragment to Fragment, background fragment is changing to target fragment with current dialog on top of it, instead of just moving to target fragment.

Here is the navigation graph.

<navigation
    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:id="@+id/home"
    app:startDestination="@+id/titleScreen">

    <fragment
        android:id="@+id/titleScreen"
        android:name="com.example.android.navigationadvancedsample.homescreen.Title"
        android:label="@string/title_home"
        tools:layout="@layout/fragment_title">
        <action
            android:id="@+id/action_title_to_about"
            app:destination="@id/aboutScreen"/>
    </fragment>
    <dialog
        android:id="@+id/aboutScreen"
        android:name="com.example.android.navigationadvancedsample.homescreen.About"
        android:label="@string/title_about"
        tools:layout="@layout/fragment_about">
        <action
            android:id="@+id/action_aboutScreen_to_register"
            app:destination="@id/register" />
    </dialog>
    <fragment
        android:id="@+id/register"
        android:name="com.example.android.navigationadvancedsample.formscreen.Register"
        android:label="fragment_leaderboard"
        tools:layout="@layout/fragment_leaderboard" />
</navigation>

Why I am getting this behavior or how to fix it?

By fixing I mean normal dialog behavior. Say, I have a dialog D on top of a fragment A and move to a fragment B from a button on D, the screen should show B. And when I pop back from B, it should go to previous stage of D on top of A.

Answer 1

Thanks @musooff for filing this bug

This problem was fixed on Navigation 2.1.0-alpha06, along with others dialog inconsistencies like back button when Dialog is popped.

However, update to 2.1.0-beta02 or higher if you can.