E / flutter(20289):RangeError(结束):无效值:不在55277..58814范围内,包括:59396

时间:2018-06-07 14:39:19

标签: dart flutter

  List<Widget> ListMyWidgets(ticketGroups) {
    List<Widget> list = new List();

list.add(

  new CupertinoNavigationBar(

    backgroundColor: Colors.blue,
   leading:
     //children: <Widget>[
       new Padding(
         padding: new EdgeInsets.all(8.0),
         child: new Text(ticketGroups[0]['ticket_name'],style: const TextStyle(fontSize: 20.0, fontFamily: 'Poppins',color: Colors.white)),
       ),
       trailing: new Padding(
           padding: new EdgeInsets.all(8.0),
           child: new Text('${ticketGroups.length}', style: const TextStyle(fontSize: 20.0, fontFamily: 'Poppins',color: Colors.white))
       ),

  )

);

    for (int i = 0 ; i < ticketGroups.length; i++) {


list.add(


new GestureDetector(
//  onTap: _try(ticketGroups[i]),
onTap: _try(ticketGroups[i]),
  //onTap: _try(1),
  // ticketGroups[i]
  child:


  new Card(

      child: new Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: <Widget>[

          new Padding(
            padding: new EdgeInsets.all(8.0),
            child: new Text(ticketGroups[0]['ticket_name'],style: const TextStyle(fontSize: 15.0, fontFamily: 'Poppins')),
          ),
          new Padding(
              padding: new EdgeInsets.all(8.0),
              child:  new Text(ticketGroups[i]["used"].toString(), style: const TextStyle(fontSize: 15.0, fontFamily: 'Poppins'))
          )

        ],
      ),
    )

  ),
);

    }
    return list;
  }

我不知道为什么我得到这个错误,很安静很难找出错误到底在哪里,不告诉我该行。 但是我相信发布我的代码的剪切部分会很有用,因为我很确定这是获取代码的原因。

0 个答案:

没有答案