바로가기 메뉴 (NavigationDrawer)

1. 바로가기 메뉴 (NavigationDrawer)

화면의 좌상단에 위치한 모양의 아이콘을 눌렀을 때 나타나는 화면이며, NavigationDrawer라는 클래스로 제공된다.

이 메뉴는 여러 개의 화면에서 공통으로 적용되어 빠르게 메뉴 기능에 접근할 수 있다.

안드로이드 스튜디오에서 프로젝트 생성시, 

[File] - [New] - [New Project] - Empty Activity 가 아닌 Navigation Drawer Activity 를 선택한다.

2. 구현 결과 화면

      

3. AndroidManifest.xml

MainActivity에 NoActionBar 설정

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="qlyh8.tistory.com.navigationdrawer">
 
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
 
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
 
</manifest>

4. values/styles.xml

<resources>
 
    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
 
    <!-- 액션바가 없어야 한다. -->
    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>
 
    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
 
    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
 
</resources>
 

5. activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout
    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/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:openDrawer="start">
 
    <!-- 메인 화면 -->
    <android.support.design.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
 
        <!-- 상단 바 -->
        <android.support.design.widget.AppBarLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:theme="@style/AppTheme.AppBarOverlay">
            <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:background="?attr/colorPrimary"
                app:popupTheme="@style/AppTheme.PopupOverlay" />
        </android.support.design.widget.AppBarLayout>
 
        <!-- 화면 -->
        <FrameLayout
            android:id="@+id/container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_behavior="@string/appbar_scrolling_view_behavior">
        </FrameLayout>
 
    </android.support.design.widget.CoordinatorLayout>
 
    <!-- 네비게이션 메뉴 화면-->
    <android.support.design.widget.NavigationView
        android:id="@+id/nav_view"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_gravity="start"
        android:fitsSystemWindows="true"
        app:headerLayout="@layout/nav_header_main"
        app:menu="@menu/activity_main_drawer" />
 
</android.support.v4.widget.DrawerLayout>
 

6. nav_header_main.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 네비게이션 메뉴 상단 화면 -->
<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="@dimen/nav_header_height"
    android:background="@drawable/side_nav_bar"
    android:gravity="bottom"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:theme="@style/ThemeOverlay.AppCompat.Dark">
 
    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingTop="@dimen/nav_header_vertical_spacing"
        app:srcCompat="@mipmap/ic_launcher_round" />
 
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="@dimen/nav_header_vertical_spacing"
        android:text="qlyh8"
        android:textAppearance="@style/TextAppearance.AppCompat.Body1" />
 
    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="qlyh8.tistory.com" />
 
</LinearLayout>
 

7. activity_main_drawer.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 네비게이션 메뉴 하단 화면 -->
<menu xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    tools:showIn="navigation_view">
 
    <group android:checkableBehavior="single">
        <item
            android:id="@+id/nav1"
            android:icon="@drawable/ic_menu_camera"
            android:title="첫 번째 화면" />
        <item
            android:id="@+id/nav2"
            android:icon="@drawable/ic_menu_gallery"
            android:title="두 번째 화면" />
        <item
            android:id="@+id/nav3"
            android:icon="@drawable/ic_menu_slideshow"
            android:title="세 번째 화면" />
    </group>
 
</menu>
 

8. fragment1.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@android:color/holo_blue_light"
    android:gravity="center">
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="첫 번째 화면"
        android:textAlignment="center"
        android:textSize="30sp"
        android:textColor="@android:color/white"/>
</LinearLayout>

fragment2.xml, fragment3.xml 코드 동일

9. Fragment1.java

package qlyh8.tistory.com.navigationdrawer;
 
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
 
public class Fragment1 extends Fragment {
 
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        ViewGroup rootView = (ViewGroup) getLayoutInflater().inflate(R.layout.fragment1, container, false);
        return rootView;
    }
}
 

Fragment2.java, Fragment3.java 코드 동일

10. MainActivity.java

package qlyh8.tistory.com.navigationdrawer;
 
import android.os.Bundle;
import android.support.design.widget.NavigationView;
import android.support.v4.app.Fragment;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
 
public class MainActivity extends AppCompatActivity
        implements NavigationView.OnNavigationItemSelectedListener, FragmentCallback {
 
    Toolbar toolbar;
    Fragment fragment1, fragment2, fragment3;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
 
        // 상단 바 설정
        toolbar = findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
 
        // 전체 화면 설정
        DrawerLayout drawer = findViewById(R.id.drawer_layout);
        ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
                this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
        drawer.addDrawerListener(toggle);
        toggle.syncState();
 
        // 네비게이션 화면 설정
        NavigationView navigationView = findViewById(R.id.nav_view);
        navigationView.setNavigationItemSelectedListener(this); // 리스너 설정
 
        // 프래그먼트 화면 설정
        fragment1 = new Fragment1();
        fragment2 = new Fragment2();
        fragment3 = new Fragment3();
        getSupportFragmentManager().beginTransaction().add(R.id.container, fragment1).commit();
    }
 
    @Override
    public void onBackPressed() {
        DrawerLayout drawer = findViewById(R.id.drawer_layout);
        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            super.onBackPressed();
        }
    }
 
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }
 
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
 
        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }
 
        return super.onOptionsItemSelected(item);
    }
 
    // 네비게이션 메뉴 클릭 이벤트
    @SuppressWarnings("StatementWithEmptyBody")
    @Override
    public boolean onNavigationItemSelected(MenuItem item) {
        int id = item.getItemId();
 
        if (id == R.id.nav1) {
            onChangedFragment(1, null);
        } else if (id == R.id.nav2) {
            onChangedFragment(2, null);
        } else if (id == R.id.nav3) {
            onChangedFragment(3, null);
        }
 
        DrawerLayout drawer = findViewById(R.id.drawer_layout);
        drawer.closeDrawer(GravityCompat.START);
        return true;
    }
 
    // 프래그먼트 화면 전환 이벤트
    @Override
    public void onChangedFragment(int position, Bundle bundle) {
        Fragment fragment = null;
 
        switch (position){
            case 1:
                fragment = fragment1;
                toolbar.setTitle("첫 번째 화면");
                break;
            case 2:
                fragment = fragment2;
                toolbar.setTitle("두 번째 화면");
                break;
            case 3:
                fragment = fragment3;
                toolbar.setTitle("세 번째 화면");
                break;
             default:
                 break;
        }
        getSupportFragmentManager().beginTransaction().replace(R.id.container, fragment).commit();
    }
}
 

11. FragmentCallback.java

package qlyh8.tistory.com.navigationdrawer;
 
import android.os.Bundle;
 
// 프래그먼트 전환 인터페이스
public interface FragmentCallback {
    void onChangedFragment(int position, Bundle bundle);
}
 

12. 참고 사이트

Create a Navigation Drawer: https://developer.android.com/training/implementing-navigation/nav-drawer.html

출처: https://www.edwith.org/boostcourse-android/lecture/20684/