sqliteで取得した値をListViewに表示する簡単な例

---

###Helper

MyDbHelper.java

public class MyDbHelper extends SQLiteOpenHelper {

    public MyDbHelper(Context context){
        super(context,"test.db",null,1);
    }

    @Override
    public void onCreate(SQLiteDatabase sqLiteDatabase) {

        //create
        sqLiteDatabase.execSQL("create table members(_id integer primary key autoincrement,name text,age integer)");

        //init
        sqLiteDatabase.execSQL("insert into members(name,age) values('hoge',23)");
    }

    @Override
    public void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i2) {

        //delete
        sqLiteDatabase.execSQL("drop table if exist members");

        //create
        onCreate(sqLiteDatabase);

    }
}

###Activity

MyActivity.java

public class MyActivity extends Activity {

    ListView myListView;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);

        //listview
        myListView = (ListView)findViewById(R.id.myListView);

        //db
        MyDbHelper mDbHelper = new MyDbHelper(this);
        SQLiteDatabase db = mDbHelper.getWritableDatabase();

        //select
        Cursor c = db.rawQuery("select * from members",null);

        //adapterの準備
		 //表示するカラム名
        String[] from = {"name","_id"};
		 //バインドするViewリソース
        int[] to = {android.R.id.text1,android.R.id.text2};

		 //adapter生成
        SimpleCursorAdapter adapter = new SimpleCursorAdapter(this,android.R.layout.simple_list_item_2,c,from,to,0);

        //bindして表示
        myListView.setAdapter(adapter);
        //クリックしたとき各行のデータ（特に_id）を取得
        myListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {

                //各要素を取得
                String s1 = ((TextView)view.findViewById(android.R.id.text1)).getText().toString();
                String s2 = ((TextView)view.findViewById(android.R.id.text2)).getText().toString();

                Log.v("tama","position=" + s1);
                Log.v("tama","position=" + s2);
            }
        });

        //loop(いらない）
        while(c.moveToNext()){
            Log.v("tama", c.getString(c.getColumnIndex("name")));
        }
    }
}