Signal-Android/app/src/main/res/navigation/create_group.xml

<?xml version="1.0" encoding="utf-8"?>
<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/create_group"
    app:startDestination="@id/addGroupDetailsFragment">

    <fragment
        android:id="@+id/addGroupDetailsFragment"
        android:name="org.thoughtcrime.securesms.groups.ui.creategroup.details.AddGroupDetailsFragment"
        android:label="add_group_details_fragment"
        tools:layout="@layout/add_group_details_fragment">

        <argument
            android:name="recipient_ids"
            app:argType="org.thoughtcrime.securesms.recipients.RecipientId[]"
            app:nullable="false" />

        <action
            android:id="@+id/action_addGroupDetailsFragment_to_avatar_picker"
            app:destination="@id/avatar_picker"
            app:enterAnim="@anim/fragment_open_enter"
            app:exitAnim="@anim/fragment_open_exit"
            app:popEnterAnim="@anim/fragment_close_enter"
            app:popExitAnim="@anim/fragment_close_exit">

            <argument
                android:name="group_id"
                app:argType="org.thoughtcrime.securesms.groups.ParcelableGroupId"
                app:nullable="true" />

            <argument
                android:name="is_new_group"
                app:argType="boolean"
                android:defaultValue="false" />

            <argument
                android:name="group_avatar_media"
                app:argType="org.thoughtcrime.securesms.mediasend.Media"
                app:nullable="true" />
        </action>

    </fragment>

    <include app:graph="@navigation/avatar_picker" />

</navigation>