相关疑难解决方法(0)

我的课程没有在 AppBar 中显示后退按钮，

已经尝试将 this.automaticallyImplyLeading = true,

import 'package:carros/pages/carro/carro.dart';
import 'package:flutter/material.dart';

class CarroPage extends StatelessWidget {
  Carro carro;
  CarroPage(this.carro);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(carro.nome),
      ),
      body: _body(),
    );
  }

  _body() {
    return Image.network(carro.urlFoto);
  }
}