Menu : 메뉴 만들기

메뉴 보이기 실습 

1) menu 폴더 만들기 

2) menu_main.xml 파일 만들기 

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/home"
        android:title="home"
        android:icon="@drawable/img4"
        app:showAsAction="always"/>
    <item
        android:id="@+id/serch"
        android:title="serch"
        android:icon="@drawable/img10"
        app:showAsAction="always"/>
    <item
        android:id="@+id/refresh"
        android:title="refresh"
        android:icon="@drawable/img9"
        app:showAsAction="always"/>

</menu>

3) mainActivity 에서 onCreateOptionsMenu and onOptionsItemSelected 오버라이드 하기 

  @Override
    public boolean onCreateOptionsMenu(Menu menu) {

       getMenuInflater().inflate( R.menu.main_menu, menu );
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int curId = item.getItemId();
        switch (curId){
            case R.id.refresh:
                Toast.makeText( getApplicationContext(), "새로고침 메뉴 선택됨",Toast.LENGTH_LONG ).show();
                break;
            case R.id.home:
                Toast.makeText( getApplicationContext(), "홈 메뉴 선택됨",Toast.LENGTH_LONG ).show();
                break;
            case R.id.serch:
                Toast.makeText( getApplicationContext(), "검색 메뉴 선택됨",Toast.LENGTH_LONG ).show();
                break;
            default:
                break;
        }

        return super.onOptionsItemSelected( item );
    }

4) 기본 다크 액션 바 보이기 안보이기 하는 방법 (DarkActionBar -> NoActionBar로 변경)

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"> // DarkActionBar -> NoActionBar로 변경
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

</resources>

4-1) 액션바 코드에서 안보이게 만들기 

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate( savedInstanceState );
        setContentView( R.layout.activity_main );   
    
    	ActionBar abar = getActionBar(); //or getSupportActionBar();
        abar.hide();
        
        }
        

5) 메뉴에 layout 설정하기 (메뉴에 넣을 serch_layout.xml ) 만들기

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="검색"
        android:textSize="16dp"
        android:textColor="#ffad8745"
        />
    <EditText
        android:id="@+id/editText"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="4dp"
        />

</LinearLayout>

6) menu 에서 xml 파일 수정하기  ( app:showAsAction="always|withText", app:actionLayout="@layout/serch_layout")

    <item
        android:id="@+id/serch"
        android:title="serch"
        android:icon="@drawable/img10"
        app:showAsAction="always|withText"
        app:actionLayout="@layout/serch_layout"
        />

7) 동작후 확인하기