https://api.flutter.dev/flutter/material/AppBar-class.html AppBar class - material library - Dart APIA Material Design app bar. An app bar consists of a toolbar and potentially other widgets, such as a TabBar and a FlexibleSpaceBar. App bars typically expose one or more common actions with IconButtons which are optionally followed by a PopupMenuButton forapi.flutter.dev 앱 상단에 위치하는 부분을 AppBar라고 ..
