Colors.transparent will deny any effects, simply it is transparent so it will appear as nothing happens… in ButtonStyle, it goes something like this with colors. ButtonStyle( overlayColor: MaterialStateColor.resolveWith((states) => Colors.red), ),
You can simply use SliverToBoxAdapter : SliverToBoxAdapter( child: Container(..), )
I had same problem. In my case i had an AppBar with transparent background and a Scaffold with extendBodyBehindAppBar set to true. I tried with shadowColor and surfaceTintColor with Colors.transparent value, but the shadow was still visible. Then I noticed the scrolledUnderElevation property of AppBar. Setting it to 0.0 was the solution.
flutter config –no-enable-web if you try to type flutter config in terminal you will see all options
Try the code bellow. No size adjustment for the error text, only the field border in red. TextFormField( decoration: InputDecoration( errorStyle: TextStyle(height: 0), ), );
The -t parameter does that which is supported by various commands (run, build, …) flutter run -t lib/my_other_main.dart
You can use Align widget to align it’s child inside it’s parent. Simply wrap your list nodes (Card instances) inside a Align. import ‘package:flutter/material.dart’; //import ‘../../Library/Library.dart’; //import ‘../../Ui/ChatMessage.dart’; void main() { runApp( new MaterialApp( home: new ChatScreen(), ), ); } class ChatScreen extends StatefulWidget { @override State<StatefulWidget> createState() { return new ChatScreenState(); } } class … Read more
You are calling fetchEvents from within your build code for the root widget. Within fetchEvents, you call notifyListeners, which, among other things, calls setState on widgets that are listening to the event provider. This is a problem because you cannot call setState on a widget when the widget is in the middle of rebuilding. Now … Read more
The setState() method notifies the framework that the internal state of the Stateful widget has changed. Calling this method is what triggers the widget to rebuild with the latest state values, so it is not necessary to call it inside the initState() lifecycle method since it is only called once when the widget is inserted … Read more
You can call the dialog from inside ‘initState()’ dalaying its appearance after the first frame has been drawn. @override void initState() { super.initState(); WidgetsBinding.instance.addPostFrameCallback((_) async { await showDialog<String>( context: context, builder: (BuildContext context) => new AlertDialog( title: new Text(“title”), content: new Text(“Message”), actions: <Widget>[ new FlatButton( child: new Text(“OK”), onPressed: () { Navigator.of(context).pop(); }, ), … Read more