[Projeto] Adicionando a imagem

import 'package:flutter/material.dart';

class FormScreen extends StatefulWidget {
  @override
  State<FormScreen> createState() => _FormScreenState();
}

class _FormScreenState extends State<FormScreen> {
  TextEditingController nameController = TextEditingController();
  TextEditingController difficultyController = TextEditingController();
  TextEditingController imageController = TextEditingController();
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.blue,
        title: Text(
          'New Task',
        ),
        titleTextStyle: TextStyle(color: Colors.white, fontSize: 24),
      ),
      body: Center(
        child: Container(
          height: 650,
          width: 375,
          decoration: BoxDecoration(
              color: Colors.black12,
              borderRadius: BorderRadius.circular(10),
              border: Border.all(
                width: 3,
              )),
          child: Column(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              Padding(
                padding: const EdgeInsets.all(8.0),
                child: TextFormField(
                    controller: nameController,
                    textAlign: TextAlign.center,
                    decoration: InputDecoration(
                      border: OutlineInputBorder(),
                      hintText: 'Nome',
                      fillColor: Colors.white70,
                      filled: true,
                    )),
              ),
              Padding(
                padding: const EdgeInsets.all(8.0),
                child: TextFormField(
                    controller: difficultyController,
                    textAlign: TextAlign.center,
                    decoration: InputDecoration(
                      border: OutlineInputBorder(),
                      hintText: 'Dificuldade',
                      fillColor: Colors.white70,
                      filled: true,
                    )),
              ),
              Padding(
                padding: const EdgeInsets.all(8.0),
                child: TextFormField(
                    onChanged: (text) {
                      setState(() {});
                    },
                    controller: imageController,
                    textAlign: TextAlign.center,
                    decoration: InputDecoration(
                      border: OutlineInputBorder(),
                      hintText: 'Imagem',
                      fillColor: Colors.white70,
                      filled: true,
                    )),
              ),
              Container(
                height: 100,
                width: 72,
                decoration: BoxDecoration(
                  color: Colors.blue,
                  borderRadius: BorderRadius.circular(
                    10,
                  ),
                  border: Border.all(width: 2, color: Colors.blue),
                ),
                child: ClipRRect(
                  borderRadius: BorderRadius.circular(10),
                  child: Image.network(
                    imageController.text,
                    errorBuilder: (BuildContext context, Object exception,
                        StackTrace? stackTrace) {
                      return Container();
                    },
                    fit: BoxFit.cover,
                  ),
                ),
              ),
              ElevatedButton(
                  onPressed: () {
                    print('Sucesso Nova Tarefa Criada');
                  },
                  child: Text('Adicionar'))
            ],
          ),
        ),
      ),
    );
  }
}