appBar: AppBar(
title: Text('AppBar Height'),
toolbarHeight: 100.0, // double
automaticallyImplyLeading: false, // hides back button
),appBar: PreferredSize(
preferredSize: Size.fromHeight(100.0),
child: AppBar(
automaticallyImplyLeading: false, // hides leading widget
flexibleSpace: SomeWidget(),
)
),appBar: PreferredSize(
preferredSize: Size.fromHeight(200.0),
child: AppBar(
automaticallyImplyLeading: false,
flexibleSpace: Image(
image: AssetImage('assets/images/banner_image.jpg'),
fit: BoxFit.cover,
),
backgroundColor: Colors.transparent,
)
),