Dialog.java

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());

    LayoutInflater inflater = getActivity().getLayoutInflater();
    
    builder.setView(inflater.inflate(R.layout.dialog_info, null))
           .setPositiveButton(R.string.info_ok, new DialogInterface.OnClickListener() {
               @Override
               public void onClick(DialogInterface dialog, int id) {
                   InfoDialogFragment.this.getDialog().cancel();
               }
           });
    return builder.create();
}