扑应用栏宽度

代码示例

高度的应用栏颤动

appBar: PreferredSize(
  preferredSize: Size.fromHeight(100.0),
  child: AppBar(
    automaticallyImplyLeading: false, // hides leading widget
    flexibleSpace: SomeWidget(),
  )
),

扑应用栏宽度

appBar: AppBar(
          title: Text('AppBar Height'),
          toolbarHeight: 100.0, // double
          automaticallyImplyLeading: false, // hides back button
        ),

扑如何找到应用栏大

var height = AppBar().preferredSize.height;

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