543

 @override
  Widget _buildPage(int index) {
    Radio_answer _answer;
    return Container(
      padding: EdgeInsets.all(10.0),
      height: 100.0,
      child: Column(
        children: <Widget>[
          Text('${question[index]}'),
          new RadioListTile(
            value: Radio_answer.newer,
            groupValue: _answer,
            onChanged: (Radio_answer value) {
              setState(() {
                _answer = value;
              });
            },
            title: Text('Никогда'),
          ),
          new RadioListTile(
            value: Radio_answer.sometimes,
            groupValue: _answer,
            onChanged: (Radio_answer value) {
              setState(() {
                _answer = value;
              });
            },
            title: Text('Иногда'),
          ),
          new RadioListTile(
            value: Radio_answer.often,
            groupValue: _answer,
            onChanged: (Radio_answer value) {
              setState(() {
                _answer = value;
              });
            },
            title: Text('Часто'),
          ),
        ],
      ),
    );
  }