Flutter基础widgets教程-AppBar篇

AppBar({
    Key key,
    this.leading,
    this.automaticallyImplyLeading = true,
    this.title,
    this.actions,
    this.flexibleSpace,
    this.bottom,
    this.backgroundColor,
    this.brightness,
    this.iconTheme,
    this.textTheme,
    this.primary = true,
    this.centerTitle,
    this.titleSpacing = NavigationToolbar.kMiddleSpacing,
    this.toolbarOpacity = 1.0,
    this.bottomOpacity = 1.0,
})

leading: IconButton(
    icon: Icon(Icons.menu),
    onPressed: () {},
),

title: "AppBarWidget",

actions: <Widget>
    IconButton(
        icon: Icon(Icons.search),
        onPressed: () {},
    ),
    IconButton(
        icon: Icon(Icons.more_horiz),
        onPressed: () {},
    )
,

bottom:<Widget>[],

backgroundColor: Colors.redAccent,

centerTitle: true,