今日は僕の誕生日なので、誕生日を公開するSpinnerネタ

arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <!-- birthday_permission -->
    <string-array name="birthday_permission_data">
        <item>@array/birthday_permission_public</item>
        <item>@array/birthday_permission_protected</item>
        <item>@array/birthday_permission_private</item>
    </string-array>

    <string-array name="birthday_permission_public">
        <item>0</item>
        <item>@string/birthday_permission_public</item>
    </string-array>

    <string-array name="birthday_permission_protected">
        <item>1</item>
        <item>@string/birthday_permission_protected</item>
    </string-array>

    <string-array name="birthday_permission_private">
        <item>2</item>
        <item>@string/birthday_permission_private</item>
    </string-array>
</resources>

FormActivity.java

/**
 * Created by togu on 2013/07/23.
 */
public class FormActivity extends Activity implements OnItemSelectedListener {

    private Spinner birthdayPermission;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
        setContentView(R.layout.form);        
        
        //誕生日を公開するか、どうするか決めてもらいたくて、Spinner様登場
        birthdayPermission = (Spinner) findViewById(R.id.birthday_permission_spinner);
        birthdayPermission.setOnItemSelectedListener(this);
        
        //adapterを再利用可能な感じにしてみた
        KeyValueAdapter adapter = SpinnerHelper.getKeyValueAdapter(cxt, getResources(), R.array.birthday_permission_data);
        birthdayPermission.setAdapter(adapter);
    }

    //OnItemSelectedListener
    @Override
    public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
        long selectedItemId = adapterView.getSelectedItemId();
        
        /*
          ここのkey-valueを管理したかっただけなのー
          selectedItemId : 0 すべて公開、１ 誕生日のみ公開、２ 非公開
        */
    }
}

KeyValueAdapter.java

/**
 * Created by togu on 2013/07/26.
 */
public class KeyValueAdapter extends ArrayAdapter<String> {

    private ArrayList<? extends KeyValueItem> items;
    private Context context;

    public KeyValueAdapter(Context context, int resourceId, ArrayList<? extends KeyValueItem> items) {
        super(context, resourceId);
        this.context = context;
        this.items = items;
    }

    public int getCount() {
        return items.size();
    }

    public String getItem(int position) {
        return items.get(position).getOptionLabel();
    }

    public long getItemId(int position) {
        return items.get(position).getOptionValue();
    }

    public int getPosition(long itemId) {
        for (int i = 0; i < items.size(); i++) {
            if (items.get(i).getOptionValue() == itemId) {
                return i;
            }
        }
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        TextView label = new TextView(context);
        label.setTextColor(Color.BLACK);
        label.setText(items.get(position).getOptionLabel());
        return label;
    }
}

SpinnerHelper.java

/**
 * Created by togu on 2013/07/26.
 */
public class SpinnerHelper {

    public static ArrayList<SpinnerObject> getList(Resources res, int arrayId) {
        TypedArray spinner_data = res.obtainTypedArray(arrayId);
        ArrayList<SpinnerObject> list = new ArrayList<SpinnerObject>();
        for (int i = 0; i < spinner_data.length(); ++i) {
            int id = spinner_data.getResourceId(i, -1);
            if (id > -1) {
                String[] item = res.getStringArray(id);
                list.add(new SpinnerObject(Integer.valueOf(item[0]), item[1]));
            }
        }
        spinner_data.recycle();
        return list;
    }

    public static KeyValueAdapter getKeyValueAdapter(Context cxt, Resources res, int arrayId) {
        ArrayList<SpinnerObject> list = getList(res, arrayId);
        KeyValueAdapter adapter = new KeyValueAdapter(cxt, android.R.layout.simple_spinner_item, list);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        return adapter;
    }

}

SpinnerObject.java

/**
 * Created by togu on 2013/07/26.
 */
public class SpinnerObject implements KeyValueItem {
    private int id;
    private String name;

    public SpinnerObject(int id, String name) {
        this.id = id;
        this.name = name;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public long getOptionValue() {
        return id;
    }

    @Override
    public String getOptionLabel() {
        return name;
    }
}