Issue #6

navigation.xml에 daily, monthly fragment를 각각 추가

activity_main.xml

-> content_main.xml + Navigation View(DrawerLayout으로 감싸고 드로어에 뜰 내용은 navigation view에 저장

navigation view

-> headerLayout + menu

menu item id에 navigation에서 지정한 id를 지정해주면 navigation(fragment 이동)이 작동 (drawer_menu.xml)

layoutDirection을 right to left 로 해주면 드로어 오른쪽에서 사용 가능!

<activity_main.xml>
<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity"
    android:id="@+id/drawer_layout"
    android:layoutDirection="rtl"
    tools:openDrawer="start">

    <include
        android:id="@+id/content_main"
        layout = "@layout/content_main"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

    <com.google.android.material.navigation.NavigationView
        android:id="@+id/navigation_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header"
        app:menu="@menu/drawer_menu"/>

</androidx.drawerlayout.widget.DrawerLayout>

content_main.xml

-> Toolbar + FragmentContainerView(이거를 NavHostFragment, 움직일 최상단 프래그먼트의 host fragment로 지정)

<content_main.xml>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <androidx.coordinatorlayout.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <com.google.android.material.appbar.AppBarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <androidx.appcompat.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:background="?attr/colorPrimary"/>

        </com.google.android.material.appbar.AppBarLayout>
    </androidx.coordinatorlayout.widget.CoordinatorLayout>

    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/fragment_container_view"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:defaultNavHost="true"
        app:navGraph="@navigation/navigation"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent"/>

</LinearLayout>

여기서 지정한 navHostFragment(fragment_container_view) 는 MainActivity에서 navController 연결

actionbar는 theme에서 noactionbar로 지정, setsupportactionbar(toolbar)로 툴바를 액션바로 사용하게끔 지정

AppBarConfiguration : drawerlayout이 최상위 수준 대상을 찾아 up 버튼을 설정할지 안할지를 결정 -> setOf(nav_daily, nav_monthly)로 최상위 수준 fragment들을 직접 설정

MainActivity.kt

<MainActivity.kt>
class MainActivity : AppCompatActivity() {

    private val binding by lazy { ActivityMainBinding.inflate(layoutInflater) }
    private lateinit var appBarConfiguration: AppBarConfiguration

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(binding.root)

        setSupportActionBar(binding.contentMain.toolbar)

        val navHostFragment = supportFragmentManager.findFragmentById(R.id.fragment_container_view) as NavHostFragment
        val navController = navHostFragment.navController

        appBarConfiguration = AppBarConfiguration(
            setOf(
                R.id.nav_daily_writing,
                R.id.nav_monthly_writing
            ), binding.drawerLayout
        )

        binding.navigationView.setupWithNavController(navController)
        setupActionBarWithNavController(navController, appBarConfiguration)
    }

    override fun onSupportNavigateUp(): Boolean {
        val navController = findNavController(R.id.fragment_container_view)
        return navController.navigateUp(appBarConfiguration) || super.onNavigateUp()
    }
}