解决方法
在撰写本文时,我不知道PreferredSize. Cinn的答案更好地实现了这一目标.
import "package:Flutter/material.dart"; class Page extends StatelessWidget { @override Widget build(BuildContext context) { return new Column(children : <Widget>[new CustomAppBar("Custom App Bar"),new Container()],); } } class CustomAppBar extends StatelessWidget { final String title; final double barHeight = 50.0; // change this for different heights CustomAppBar(this.title); @override Widget build(BuildContext context) { final double statusbarHeight = MediaQuery .of(context) .padding .top; return new Container( padding: new EdgeInsets.only(top: statusbarHeight),height: statusbarHeight + barHeight,child: new Center( child: new Text( title,style: new TextStyle(fontSize: 20.0,fontWeight: FontWeight.bold),),); } }