🔥TIL🔥스파르타 | 다중 액티비티 위의 NavGraph

Android Navigation Component는 주로 단일 액티비티 내에서 프래그먼트 간의 이동을 관리하도록 설계

📖만약 2개의 액티비티를 사용한다고 하면 navigation 폴더 밑에 2개의 graph 파일을 만들어줘야 한다.

나는 RandomActivity 위에 start, random_option, random_theme, random_result 화면을 띄우고

MainActivity 위에 place_list 화면이 뜨게 했다.

📝 코드

nav_graph_random

<?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/random_navigation"
    app:startDestination="@id/navigation_start">

    <fragment
        android:id="@+id/navigation_start"
        android:name="com.twoday.todaytrip.ui.StartFragment"
        android:label="fragment_start"
        tools:layout="@layout/fragment_start">
        <action
            android:id="@+id/action_navigation_start_to_navigation_random_option"
            app:destination="@id/navigation_random_option" />
    </fragment>

    <fragment
        android:id="@+id/navigation_random_option"
        android:name="com.twoday.todaytrip.ui.RandomOptionFragment"
        android:label="fragment_random_option"
        tools:layout="@layout/fragment_random_option">
        <action
            android:id="@+id/action_navigation_random_option_to_navigation_random_theme"
            app:destination="@id/navigation_random_theme" />
    </fragment>

    <fragment
        android:id="@+id/navigation_random_theme"
        android:name="com.twoday.todaytrip.ui.RandomThemeFragment"
        android:label="fragment_random_theme"
        tools:layout="@layout/fragment_random_theme">
        <action
            android:id="@+id/action_navigation_random_theme_to_navigation_random_result"
            app:destination="@id/navigation_random_result" />
    </fragment>

    <fragment
        android:id="@+id/navigation_random_result"
        android:name="com.twoday.todaytrip.ui.RandomResultFragment"
        android:label="fragment_random_result"
        tools:layout="@layout/fragment_random_result">
        <action
            android:id="@+id/action_navigation_random_result_to_navigation_place_list"
            app:destination="@id/navigation_place_list" />
    </fragment>

    <fragment
        android:id="@+id/navigation_place_list"
        android:name="com.twoday.todaytrip.ui.PlaceListFragment"
        android:label="fragment_place_list"
        tools:layout="@layout/fragment_place_list">
    </fragment>
    
</navigation>

nav_graph_home

<?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/home_navigation"
    app:startDestination="@id/navigation_place_list">

    <fragment
        android:id="@+id/navigation_place_list"
        android:name="com.twoday.todaytrip.ui.PlaceListFragment"
        android:label="fragment_place_list"
        tools:layout="@layout/fragment_place_list">
       </fragment>

    <fragment
        android:id="@+id/navigation_route"
        android:name="com.twoday.todaytrip.ui.StartFragment"
        android:label="fragment_start"
        tools:layout="@layout/fragment_start">
        </fragment>
    
</navigation>