!!!Android スケルトン ListActivity
[Android][Android スケルトン]
*ListActivity を利用するスケルトン
*メニューとコンテキストメニューを利用

!!イメージ
!メニュー
{{ref_image list_activity01.jpg}}
!コンテキストメニュー
{{ref_image list_activity02.jpg}}

!!Tips
!背景色の設定をしても、スクロールすると黒くなってしまう。
*[ListView#scrollingChache|http://developer.android.com/reference/android/widget/AbsListView.html#attr_android:scrollingCache]をfalseに設定する。
 android:scrollingCache="false"
!!Activity

 package info.typea.handrawroid;
 
 import java.util.ArrayList;
 import java.util.List;
 
 import android.app.ListActivity;
 import android.content.Context;
 import android.os.Bundle;
 import android.view.ContextMenu;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ContextMenu.ContextMenuInfo;
 import android.widget.ArrayAdapter;
 import android.widget.TextView;
 
 /**
  * @author piroto
  */
 public class NoteListActivity extends ListActivity {
     
     private static final int MENU_NEW         = Menu.FIRST;
     private static final int MENU_CLOSE       = Menu.FIRST + 1;
     private static final int MENU_PREFERENCES = Menu.FIRST + 2;
     
     private static final int MENU_EDIT        = Menu.FIRST + 3;
     private static final int MENU_SHARE       = Menu.FIRST + 4;
     private static final int MENU_DELETE      = Menu.FIRST + 5;
     
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);
         
         // コンテキストメニューを登録
         registerForContextMenu(getListView());
         
         List<String> items = new ArrayList<String>();
         // Dummy Data Create From
         for (int i=0; i<10; i++) {
             items.add("dummy item " + i);
         }
         // Dummy Data Create To
         
         NoteAdapter adapter = new NoteListActivity.NoteAdapter(this, R.layout.row_note, items);
         setListAdapter(adapter);
     }
 
     @Override
     protected void onListItemClick(ListView l, View v, int position, long id) {
         super.onListItemClick(l, v, position, id);
		
     }
 
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         super.onCreateOptionsMenu(menu);
         
         menu.add(0,MENU_NEW,0,R.string.mnu_edit_new)
             .setIcon(android.R.drawable.ic_menu_add);
         menu.add(0,MENU_PREFERENCES,0,R.string.mnu_preferences)
             .setIcon(android.R.drawable.ic_menu_preferences);
         menu.add(0,MENU_CLOSE,0,R.string.mnu_close)
             .setIcon(android.R.drawable.ic_menu_close_clear_cancel);
         return true;
     }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
         case MENU_NEW:
             break;
         case MENU_PREFERENCES:
             break;
         case MENU_CLOSE:
             break;
         default:
             break;
         }
         return true;
     }
     
     @Override
     public void onCreateContextMenu(ContextMenu menu, View v,
             ContextMenuInfo menuInfo) {
         super.onCreateContextMenu(menu, v, menuInfo);
         menu.add(0, MENU_EDIT,    0, R.string.mnu_edit);
         menu.add(0, MENU_SHARE,   0, R.string.mnu_share);
         menu.add(0, MENU_DELETE,  0, R.string.mnu_delete);
     }
     
     @Override
     public boolean onContextItemSelected(MenuItem item) {
         switch(item.getItemId()) {
         case MENU_EDIT:
             break;
         case MENU_SHARE:
             break;
         case MENU_DELETE:
             break;
         default:
             break;
         }
         return true;
     }
 
     /**
      * @author piroto
      */
     public static class NoteAdapter extends ArrayAdapter<String> {
         private List<String> items;
 
         public NoteAdapter(Context context, int textViewResourceId, List<String> items) {
             super(context, textViewResourceId, items);
             this.items = items;
         }
         @Override
         public View getView(int position, View convertView, ViewGroup parent) {
             View view = convertView;
             if (view == null) {
                 LayoutInflater lif = (LayoutInflater)getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                 view = lif.inflate(R.layout.row_note, null);
             }
             String item = this.items.get(position);
             if (item != null) {
                 TextView tv = (TextView)view.findViewById(R.id.txt_note_title);
                 tv.setText(item);
             }
             return view;
         }
     }
 }
!!main.xml

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
     android:layout_width="fill_parent"
     android:layout_height="fill_parent"
     >
     <ListView android:id="@+id/android:list" 
               android:layout_height="wrap_content" 
               android:layout_width="fill_parent">
               
     </ListView>
     <TextView android:text="@string/msg_no_items" 
               android:id="@+id/android:empty" 
               android:layout_width="wrap_content" 
               android:layout_height="wrap_content"
               android:textSize="20sp">
     </TextView>
 </LinearLayout>

!!row_note.xml

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
     android:layout_width="fill_parent" 
     android:layout_height="fill_parent">
     <TextView android:text="" 
               android:id="@+id/txt_note_title" 
               android:layout_width="fill_parent" 
               android:layout_height="fill_parent" 
               android:textSize="24sp" 
               >
     </TextView>
 </LinearLayout>

!!string.xml

 <?xml version="1.0" encoding="utf-8"?>
 <resources>
 <string name="hello">Hello World, NoteListActivity!</string>
 <string name="app_name">Handrawroid</string>
 <string name="mnu_edit_new">新規作成</string>
 <string name="msg_no_items">アイテムがありません</string>
 <string name="mnu_preferences">設定</string>
 <string name="mnu_close">終了</string>
 <string name="mnu_edit">編集</string>
 <string name="mnu_share">共有</string>
 <string name="mnu_delete">削除</string>
 </resources>