nav_graph

<?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/nav_graph"
    android:label="Journal"
    app:startDestination="@id/mainFragment">

    <fragment
        android:id="@+id/mainFragment"
        android:name="com.rapiraapps.android.myapplication.Fragments.Main.MainFragment"
        android:label="Main"
        tools:layout="@layout/fragment_main">
       <!--that his action-->
        <action
            android:id="@+id/action_mainFragment_to_journalFragment"
            app:destination="@id/journalFragment" />
        <action
            android:id="@+id/action_mainFragment_to_addDialogFragment"
            app:destination="@id/addDialogFragment" />
    </fragment>
    <fragment
        android:id="@+id/journalFragment"
        android:name="com.rapiraapps.android.myapplication.Fragments.Journal.JournalFragment"
        android:label="Journal"
        tools:layout="@layout/fragment_journal">
        <action
            android:id="@+id/action_journalFragment_to_mainFragment"
            app:destination="@id/mainFragment" />
        <action
            android:id="@+id/action_journalFragment_to_addDialogFragment"
            app:destination="@id/addDialogFragment" />
    </fragment>
    <dialog
        android:id="@+id/addDialogFragment"
        android:name="com.rapiraapps.android.myapplication.Fragments.Dialog.AddDialogFragment"
        android:label="Dialog" >
        <action
            android:id="@+id/action_addDialogFragment_to_journalFragment"
            app:destination="@id/journalFragment" />
    </dialog>
</navigation>