DialogFragment 定番処理

arrays.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string-array name="list_mode">
        <item>@string/mode_edit</item>
        <item>@string/mode_move</item>
    </string-array>
</resources>

SelectModeDialogFragment.java

public interface SelectModeDialogListener {
    void onModeTypeSelected(ModeType selectedMode, int id);
}

public static DialogFragment newInstance(int id) {
    Bundle args = new Bundle();
    args.putInt("id", id);
    DialogFragment fragment = new SelectModeDialogFragment();
    fragment.setArguments(args);
    return fragment;
}

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    final int id = getArguments().getInt("id");

    final String[] columns = getResources().getStringArray(R.array.list_mode);
    AlertDialog.Builder builder = new Builder(getActivity());
    builder.setTitle("");
    builder.setItems(columns, new OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            ModeType modeType = ModeType.fromTextValue(getActivity(), columns[which]);
            mListener.onModeTypeSelected(modeType, id);
        }
    });
    builder.setNegativeButton(R.string.dialog_cancel, new OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
        }
    });
    builder.setPositiveButton(R.string.dialog_ok, new OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
        }
    });
    return builder.create();
}

private SelectModeDialogListener mListener;

@Override
public void onActivityCreated(Bundle savedInstanceState) {
    super.onActivityCreated(savedInstanceState);
    mListener = (SelectModeDialogListener) getActivity();
}

public enum ModeType {
    /** 無効値 */
    NONE(-1),
    /** 編集 */
    EDIT(R.string.mode_edit),
    /** 移動 */
    MOVE(R.string.mode_move);

    private int textResourceId;

    ModeType(int textResourceId) {
        this.textResourceId = textResourceId;
    }

    public int getTextResourceId() {
        return textResourceId;
    }

    public static ModeType fromTextValue(Context context, String text) {
        for (ModeType modeType : ModeType.values()) {
            if (modeType == NONE) {
                continue;
            }
            String itemText = context.getResources().getString(modeType.textResourceId);
            if (TextUtils.equals(itemText, text)) {
                return modeType;
            }
        }
        return NONE;
    }
}

strings.xml

<string name="mode_edit">編集</string>
<string name="mode_move">移動</string>
<string name="dialog_ok">OK</string>
<string name="dialog_cancel">キャンセル</string>