導致錯誤的相關小部件是 TextField

Question

我最近將Firebase添加到我的 flutter 項目中，並在嘗試在 iOS 模擬器上運行時出現此錯誤

import 'package:flutter/material.dart';
import 

'package:flutter_auth/components/text_field_container.dart'; 導入“包：flutter_auth/constants.dart”；

class RoundedPasswordField extends StatelessWidget {
  final ValueChanged<String> onChanged;
  const RoundedPasswordField({
    Key key,
    this.onChanged,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return TextFieldContainer(
      child: TextField(
        obscureText: true,
        onChanged: onChanged,
        cursorColor: kPrimaryColor,
        decoration: InputDecoration(
          hintText: "Password",
          icon: Icon(
            Icons.lock,
            color: kPrimaryColor,
          ),
          suffixIcon: Icon(
            Icons.visibility,
            color: kPrimaryColor,
          ),
          border: InputBorder.none,
        ),
      ),
    );
  }
}

Answer 1

用材料小部件包裝 TextFieldContainer