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

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