my_text_form_field.dart

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

class MyTextFormField extends StatelessWidget {
  const MyTextFormField({
    @required this.editingController,
    this.validator,
    this.hintText,
    this.icon,
    this.enabled = true,
    this.keyboardType = TextInputType.text,
    this.isPassword = false,
    this.borderColor = Colors.black12,
    this.autoValidate = false,
    this.errorStyle = const TextStyle(color: Colors.black87),
    this.maxLines = 1,
    this.minLines,
    this.hintStyle,
    this.maxLength,
    this.onChanged,
    this.style,
    this.inputFormatters,
    Key key,
  }) : super(key: key);

  final TextEditingController editingController;
  final String hintText;
  final Icon icon;
  final bool enabled;
  final TextInputType keyboardType;
  final bool isPassword;
  final Function(String) validator;
  final Color borderColor;
  final bool autoValidate;
  final TextStyle errorStyle;
  final int maxLines;
  final int minLines;
  final TextStyle hintStyle;
  final int maxLength;
  final Function(String) onChanged;
  final TextStyle style;
  final List<TextInputFormatter> inputFormatters;
  @override
  Widget build(BuildContext context) {
    return TextFormField(
      autovalidate: autoValidate,
      validator: validator,
      controller: editingController,
      obscureText: isPassword,
      keyboardType: keyboardType,
      maxLines: maxLines,
      minLines: minLines,
      maxLength: maxLength,
      onChanged: onChanged,
      style: style,
      inputFormatters: inputFormatters,
      decoration: InputDecoration(
        floatingLabelBehavior: FloatingLabelBehavior.never,
        labelStyle: TextStyle(color: Colors.black87),
        hintText: hintText,
        hintStyle: hintStyle,
        prefixIcon: icon,
        disabledBorder: OutlineInputBorder(
          borderSide: BorderSide(
            color: Colors.white,
          ),
        ),
        focusedBorder: OutlineInputBorder(
          borderSide: BorderSide(
            color: borderColor,
          ),
        ),
        enabledBorder: OutlineInputBorder(
          borderSide: BorderSide(
            color: borderColor,
          ),
        ),
        errorBorder: OutlineInputBorder(
          borderSide: BorderSide(
            color: Colors.red,
          ),
        ),
        focusedErrorBorder: OutlineInputBorder(
          borderSide: BorderSide(
            color: borderColor,
          ),
        ),
        errorStyle: errorStyle,
        fillColor: Colors.white,
        filled: true,
//        labelText: hintText,
      ),
      enabled: enabled,
    );
  }
}

OMG
ty bro.