Typically, the Scaffold widget is introduced by the MaterialApp or WidgetsApp widget at the top of your application widget tree. View the online demo here!. Typically it's a widget that includes Material. 6.2 解决方案. No ScaffoldMessenger widget found. Create a Scaffold. This usually happens when the context provided is from the same StatefulWidget as that whose build function actually creates the Scaffold widget being sought. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. Responsive Scaffold - On mobile it shows a list and pushes to details and on tablet it shows the List and the selected item. 3. Scaffold widgets require a ScaffoldMessenger widget ancestor. Scaffold.of() called with a context that does not contain a Scaffold. Before going to use this first check the default Snackbar. I/flutter (11947): In material design, most widgets are conceptually "printed" on a sheet of material. responsive_scaffold #. 0 members and 3 guests.. It's unlikely to actually be a BottomSheet, which is used by the implementations of showBottomSheet and showModalBottomSheet. To add a drawer to the app, wrap it in a Scaffold widget. In this post we cover 1) How to fix Scaffold.of() called with a context that does not contain a Scaffoldshow exception 2) Show snackbar with flushbar plugin. I / flutter (20636): No Scaffold ancestor could be found starting from the context that was passed to Scaffold. No Scaffold widget found. The Scaffold widget provides a consistent visual structure to apps 2. Close the drawer programmatically. There are currently 3 users online. They help us to know which pages are the most and least popular and see how visitors move around the site. In Flutter's I/flutter (11947): material library, that material is represented by the Material widget. The value of bottomSheet can be any widget at all. 4. All information these cookies collect is aggregated and therefore anonymous. This usually happens when the context provided is from the same StatefulWidget as that whose build function actually creates the Scaffold widget being sought. On mobile it shows a list and pushes to details and on tablet it shows the List and the selected item. Populate the drawer with items. Typically, the ScaffoldMessenger widget is introduced by the MaterialApp at the top of your application widget … I/flutter (25517): The specific widget that could not find a Material ancestor was: 重点是：“ No Material widget found… See also: showBottomSheet, which displays a bottom sheet as a route that can be dismissed with the scaffold's back button. of (). Add a drawer. I/flutter (11947): No Material widget found. This I / flutter (20636): usually happens when the context provided is from the same StatefulWidget as that whose build I / flutter (20636): function actually creates the Scaffold widget … 将 RaisedButton 单独用一个 class 封装一 … 1. E/flutter (17371): No Scaffold ancestor could be found starting from the context that was passed to Scaffold.of(). appBar: AppBar( Add a Drawer to a screen. Most users ever online was 147 at 15:44 on 03-10-2018. No Scaffold ancestor could be found starting from the context that was passed to Scaffold.of(). Flutter provided a widget called Snackbar widget, which is used to show Quick information/messages to users on the current screen. Navigation Drawer using Flutter. I/flutter (25517): To introduce a Material widget, you can either directly include one, or use a widget that contains I/flutter (25517): Material itself, such as a Card, Dialog, Drawer, or Scaffold. I/flutter (11947): IconButton widgets require a Material widget ancestor.
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