onTap：初始化程序错误中只能访问静态成员

Question

帮助，当我在myMethod小部件或onTap小部件的GestureDetector属性中调用InkWell时，我遇到了only static members can be accessed in initializers错误

static String seat1Source = 'images/carSeatBlack.png';

  _stater(){
    setState(() {
        if(seat1Source == 'images/carSeatBlack.png'){
          seat1Source = 'images/carSeatGreen.png';
        }else{
          seat1Source = 'images/carSeatBlack.png';
        }
    });
    }

  var seat1 = new InkWell(
    onTap: () => _stater(),
      child: new Image.asset(
    seat1Source,
    height: 30,
    width: 60,
   )
 );

Answer 1

用这样的函数替换InkWell变量

_buildButton(){return new InkWell(
    onTap: () => _stater(),
      child: new Image.asset(
    seat1Source,
    height: 30,
    width: 60,
   )
 );}

Answer 2

除了已经提到的方法外，另一种方法是将变量“ seat1”放入 进入“ Widget build（BuildContext context）{}”函数中，因为我认为您正在尝试将其初始化为构造函数。