10-1. 액션바 & 옵션메뉴

※ 액션바

사진출처 : 서울위즈 앱 창업자를 위한 안드로이드 실무 동영상

※ 옵션메뉴

사진출처 : 서울위즈 앱 창업자를 위한 안드로이드 실무 동영상

※ 액션바와 옵션메뉴 구현

MainActivity

public class MainActivity extends Activity {

      TextView tv;

      

      @Override

      protected void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_main);

            

            tv = (TextView) findViewById(R.id.tv);

      }

      //액션바와 옵션메뉴를 초기화 해준다.

      @Override

      public boolean onCreateOptionsMenu(Menu menu) {

            // Inflate the menu; this adds items to the action bar if it is present.

            getMenuInflater().inflate(R.menu.main, menu);

            return true;

      }

      

      //액션바와 옵션메뉴의 리스너 부분, 이곳에서 기능을 구현한다.

      @Override

      public boolean onOptionsItemSelected(MenuItem item) {

            switch (item.getItemId()){

            case R.id.action_menu_01 :

                  Toast.makeText(MainActivity.this, "action_01", Toast.LENGTH_SHORT).show();

                  break;

            case R.id.action_menu_02 :

                  Toast.makeText(MainActivity.this, "action_02", Toast.LENGTH_SHORT).show();

                  break;

            case R.id.action_menu_03 :

                  Toast.makeText(MainActivity.this, "action_03", Toast.LENGTH_SHORT).show();

                  break;

            case R.id.menu_01 :

                  Toast.makeText(MainActivity.this, "menu_01입니다.", Toast.LENGTH_SHORT).show();

                  break;

            case R.id.menu_02 :

                  Toast.makeText(MainActivity.this, "menu_02입니다.", Toast.LENGTH_SHORT).show();

                  break;

            case R.id.menu_03 :

                  Toast.makeText(MainActivity.this, "menu_03입니다.", Toast.LENGTH_SHORT).show();

                  break;

            }

            

            tv.setText(item.getTitle().toString());

            

            return false;

      }

}

activity_main 

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context="com.example.androidex2.MainActivity" >

    <TextView

        android:id="@+id/tv"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="@string/hello_world" />

</RelativeLayout>

main.xml (res/menu/main.xml 에 위치하여 있다)

<menu xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    tools:context="com.example.androidex2.MainActivity" >

     

          //액션바 아이템

      <item

          android:id="@+id/action_menu_01"

          android:icon="@drawable/ic_launcher"

          android:orderInCategory="1"

          android:title="action01"

          android:showAsAction="always"/>

      

      <item

          android:id="@+id/action_menu_02"

          android:icon="@drawable/ic_launcher"

          android:orderInCategory="2"

          android:title="action02"

          android:showAsAction="always"/>

      

      <item

          android:id="@+id/action_menu_03"

          android:icon="@drawable/ic_launcher"

          android:orderInCategory="3"

          android:title="action03"

          android:showAsAction="always"/>

          

          //옵션메뉴 아이템

      <item

          android:id="@+id/menu_01"

          android:title="menu01"/>

      <item

          android:id="@+id/menu_02"

          android:title="menu02"/>

      <item

          android:id="@+id/menu_03"

          android:title="menu03"/>

</menu>