確認ダイアログ のサンプル。呼出元を FragmentType、表示文字列 で識別し、そこへ callback する。

ConfirmDialogFragment.java

public class ConfirmDialogFragment extends DialogFragment {

    /**
     * Fragment種別
     */
    public enum FragmentType {
        NONE(-1, ""),
        /** 画面1 */
        SCREEN_1(0, "login"),
        /** 画面2 */
        SCREEN_2(1, "confirm");

        private int intValue;
        private String tag;

        FragmentType(int intValue, String tag) {
            this.intValue = intValue;
            this.tag = tag;
        }

        public int getIntValue() {
            return intValue;
        }

        public String getTag() {
            return tag;
        }

        public static FragmentType fromIntValue(int intValue) {
            for (FragmentType type : FragmentType.values()) {
                if (type == NONE) {
                    continue;
                }
                if (type.intValue == intValue) {
                    return type;
                }
            }
            return NONE;
        }
    }

    public interface ConfirmDialogListener {
        // 呼出元の特定に使用(FragmentType, textResourceId)
        /**
         * OK押下時処理
         * @param calledFragmentType 呼出元
         * @param textResourceId 表示文字列
         */
        void onConfirmOk(FragmentType calledFragmentType, int textResourceId);

        /**
         * キャンセル押下時処理
         * @param calledFragmentType 呼出元
         * @param textResourceId 表示文字列
         */
        void onConfirmCancel(FragmentType calledFragmentType, int textResourceId);
    }

    private static final String ARGS_FRAGMENT_TYPE = "fragment_type";
    private static final String ARGS_TEXT_RESOURCE = "text_resource";

    /**
     * インスタンス生成
     * @param calledFragmentType 呼出元
     * @param textResourceId 表示文字列
     * @return
     */
    public static DialogFragment newInstance(FragmentType calledFragmentType, int textResourceId) {
        Bundle args = new Bundle();
        args.putInt(ARGS_FRAGMENT_TYPE, calledFragmentType.getIntValue());
        args.putInt(ARGS_TEXT_RESOURCE, textResourceId);

        DialogFragment fragment = new ConfirmDialogFragment();
        fragment.setArguments(args);
        return fragment;
    }

    private FragmentType mCalledFragmentType = FragmentType.NONE;
    private int mTextResourceId = -1;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setStyle(STYLE_NO_FRAME, android.R.style.Theme_Holo_Light_Dialog);

        mCalledFragmentType = FragmentType.fromIntValue(getArguments().getInt(ARGS_FRAGMENT_TYPE));
        mTextResourceId = getArguments().getInt(ARGS_TEXT_RESOURCE);
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        AlertDialog.Builder builder = new Builder(getActivity());
        builder.setTitle("確認");
        builder.setView(createView(mTextResourceId));
        builder.setPositiveButton("OK", new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                okProcess();
            }
        });
        builder.setNegativeButton("キャンセル", new OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                cancelProcess();
            }
        });
        return builder.create();
    }

    @Override
    public void onCancel(DialogInterface dialog) {
        cancelProcess();
    }

    private View createView(int textResourceId) {
        View view = getActivity().getLayoutInflater().inflate(R.layout.inflate_dialog_confirm, null, false);
        TextView textView = (TextView) view.findViewById(R.id.text);
        textView.setText(textResourceId);
        return view;
    }

    private void okProcess() {
        ConfirmDialogListener listener = getConfirmDialogListener();
        if (listener == null) {
            return;
        }
        listener.onConfirmOk(mCalledFragmentType, mTextResourceId);
    }

    private void cancelProcess() {
        ConfirmDialogListener listener = getConfirmDialogListener();
        if (listener == null) {
            return;
        }
        listener.onConfirmCancel(mCalledFragmentType, mTextResourceId);
    }

    private ConfirmDialogListener getConfirmDialogListener() {
        if (getActivity() == null) {
            return null;
        }

        if (getActivity() instanceof ConfirmDialogListener) {
            return (ConfirmDialogListener) getActivity();
        }
        return null;
    }
}