我想知道，如果有人知道一种方法，以删除显示在appBar在颤振应用程序，当你使用Navigator。pushNamed转到另一个页面。我不希望它出现在这个结果页面上的原因是它来自导航，我希望用户使用注销按钮，这样会话就可以重新开始。
当前回答
在AppBar中删除后退按钮的一个简单方法是将automcallyimplyleading设置为false。
appBar: AppBar(
title: Text("App Bar without Back Button"),
automaticallyImplyLeading: false,
),
其他回答
SliverAppBar ( automaticallyImplyLeading:假的,}
只是让它透明，没有行动，而现在
AppBar(
leading: IconButton(
icon: Icon(
Icons.arrow_back,
color: Colors.white.withOpacity(0),
),
onPressed: () {},
),
appBar: new AppBar(title: new Text("SmartDocs SPAY"),backgroundColor: Colors.blueAccent, automaticallyImplyLeading:false,
leading: new Container(),
),
工作正常
我认为解决办法如下
你实际上可以:
Don't want to display that ugly back button ( :] ), and thus go for : AppBar(...,automaticallyImplyLeading: false,...); Don't want the user to go back - replacing current view - and thus go for: Navigator.pushReplacementNamed(## your routename here ##); Don't want the user to go back - replacing a certain view back in the stack - and thus use: Navigator.pushNamedAndRemoveUntil(## your routename here ##, f(Route<dynamic>)→bool); where f is a function returning truewhen meeting the last view you want to keep in the stack (right before the new one); Don't want the user to go back - EVER - emptying completely the navigator stack with: Navigator.pushNamedAndRemoveUntil(context, ## your routename here ##, (_) => false);
AppBar小部件有一个名为automcallyimplyleading的属性。默认情况下，它的值为true。如果你不想让颤振自动构建后退按钮，然后只需使属性为假。
appBar: AppBar(
title: Text("YOUR_APPBAR_TITLE"),
automaticallyImplyLeading: false,
),
添加自定义后退按钮
appBar: AppBar(
title: Text("YOUR_APPBAR_TITLE"),
automaticallyImplyLeading: false,
leading: YOUR_CUSTOM_WIDGET(),
),
