#navigationview

https://youtu.be/kRSIWh4WlMc?t=365

DrawerLayout 

의 사용예시를 보여준다.  DrawerLayout은 화면 양 옆에서 서랍처럼 등장하는 추가 layout을 만들수 있게 해준다. 이는 단순히 layout의 구조만을 만든다. 양쪽에서 등장하는 내용과는 무관하다. 이 서랍에 해당하는 부분에 NavigationView를 만들어 넣으면 아래와 같이 만들수 있다.  

NavigationView

는 menu xml화일을 이용해서 navigation menu를 생성한다. 

Navigation drawer template

은 아래 그림과 같이 android studio에서 주어지는 template이다.이를 통해 NavigationView, DrawerLayout 를 종합으로 사용한 구조를 만들수 있게 된다.

original source : https://stackoverflow.com/questions/30084530/best-way-of-implementing-a-scrolling-navigation-drawer

https://stackoverflow.com/a/39191046/3151712

Implementing scrollable Navigation Drawer using android.support.v4.widget.DrawerLayout and NavigationView could be even simpler than it is described at: http://android-developers.blogspot.ru/2015/05/android-design-support-library.html

That article suggests adding each element of your application's Navigation Drawer as a Menu Item. This is cool and definitely a way to go for most of developers. But what if you already has a Navigation Drawer implemented inside e.g. Linear Layout?

It appears that you can easily make your old good layout scrollable: just set it as a "app:headerLayout" of the NavigationView. No more changes are needed! So, in a final solution you will have:

A layout of your Activity, similar to the above blog post, but without an "app:menu="@menu/drawer" attribute e.g. this:

<android.support.v4.widget.DrawerLayout    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:fitsSystemWindows="true">    <!-- your content layout -->    <android.support.design.widget.NavigationView        android:layout_width="wrap_content"        android:layout_height="match_parent"        android:layout_gravity="start"        app:headerLayout="@layout/drawer_header"        /> </android.support.v4.widget.DrawerLayout>

And a layout for all your old Drawer content in the "drawer_header.xml" file, migrated without any changes to this scrollable Drawer, E.g. this:

<LinearLayout    xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:choiceMode="singleChoice"    android:orientation="vertical">    <TextView        android:id="@+id/myFirstButton"        android:onClick="onMyFirstButtonClick"        android:text="@string/my_first_button_title"/>    <TextView        android:id="@+id/goToTheTopButton"        android:onClick="onGoToTheTopButtonClick"        android:text="@string/go_to_the_top_title"/>    <View style="@style/Divider"/>    <!-- Some other "menu items" --> </LinearLayout>