AppBar

Material

demo

code

import 'package:flutter/material.dart';

AppBar(
    title: const Text('Page'),
    actions: const [
        Icon(Icons.add),
    ],
    leading: const Icon(Icons.arrow_back),
)

Cupertino

demo

code

import 'package:flutter/cupertino.dart';

CupertinoNavigationBar(
    middle: Text('Page'),
    trailing: Icon(CupertinoIcons.add),
    leading: Icon(CupertinoIcons.back),
);

Further reading

• Read AppBar in the Flutter API documentation.
• Read CupertinoNavigationBar in the Flutter API documentation.