Spinner, 스피너, 드롭다운 메뉴

Spinner

• 드롭다운 선택 기능을 구현한 클래스
• Spinner는 AdapterView를 상속 받았습니다.

   

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" > <TextView android:id="@+id/tvSeason" android:layout_width="match_parent" android:layout_height="wrap_content" /> <Spinner android:id="@+id/spinner" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout>

 

public class SpinnerDemo extends Activity implements AdapterView.OnItemSelectedListener { TextView tvSeason; String[] items={"봄","여름","가을","겨울"};   @Override public void onCreate(Bundle bundle) { super.onCreate(bundle); setContentView(R.layout.main); tvSeason=(TextView)findViewById(R.id.tvSeason);   Spinner spin=(Spinner)findViewById(R.id.spinner); spin.setOnItemSelectedListener(this);   //어댑터를 이용해 데이터 셋팅 ArrayAdapter<String> adapter=new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, items); //드롭다운 화면에 표시할 리소스 지정 adapter.setDropDownViewResource( android.R.layout.simple_spinner_dropdown_item); spin.setAdapter(adapter); }   public void onItemSelected(AdapterView<?> parent,View v, int position, long id) { tvSeason.setText(items[position]); }   public void onNothingSelected(AdapterView<?> parent) { tvSeason.setText(""); }