Try using Expanded widget with flex value set as per the expectation of UI filling. Sample Code: Center( child: Container( height: 80, color: Colors.yellow, child: Row( mainAxisAlignment: MainAxisAlignment.start, children: [ Padding( padding: const EdgeInsets.all(8.0), child: Icon(Icons.bus_alert), ), Expanded( flex: 1, child: Container( width: 1, color: Colors.green, child: Column( children: [Text(“Text 1”), Text(“Text 1”)], ), )), … Read more
thanks solve my problem with this padding on bottom of textfield Padding( padding: EdgeInsets.only( bottom: MediaQuery.of(context).viewInsets.bottom)); and mare reverse list
I’ve got this problem too. My solution is use Expanded widget to expand remain space. Column( children: <Widget>[ Expanded( child: horizontalList, ) ], );
The problem is that you are placing the ListView inside a Column/Row. The text in the exception gives a good explanation of the error. To avoid the error you need to provide a size to the ListView inside. I propose you this code that uses an Expanded to inform the horizontal size (maximum available) and … Read more
Definition: Invisible: The widget takes up physical space on the screen but is not visible to user. This can be achieved using Visibility widget. Gone: The widget doesn’t take up any physical space and is completely gone. This can be achieved using Visibility, if or if-else condition. Invisible example: Visibility( child: Text(“Invisible”), maintainSize: true, maintainAnimation: … Read more
Use StatefulBuilder to use setState inside Dialog and update Widgets only inside of it. showDialog( context: context, builder: (context) { String contentText = “Content of Dialog”; return StatefulBuilder( builder: (context, setState) { return AlertDialog( title: Text(“Title of Dialog”), content: Text(contentText), actions: <Widget>[ TextButton( onPressed: () => Navigator.pop(context), child: Text(“Cancel”), ), TextButton( onPressed: () { setState(() … Read more
You should wrap your Container in a Flexible to let your Row know that it’s ok for the Container to be narrower than its intrinsic width. Expanded will also work. Flexible( child: new Container( padding: new EdgeInsets.only(right: 13.0), child: new Text( ‘Text largeeeeeeeeeeeeeeeeeeeeeee’, overflow: TextOverflow.ellipsis, style: new TextStyle( fontSize: 13.0, fontFamily: ‘Roboto’, color: new Color(0xFF212121), … Read more
Update Flutter 2.0 (Recommended): On latest Flutter version, you should use: AppBar( systemOverlayStyle: SystemUiOverlayStyle( // Status bar color statusBarColor: Colors.red, // Status bar brightness (optional) statusBarIconBrightness: Brightness.dark, // For Android (dark icons) statusBarBrightness: Brightness.light, // For iOS (dark icons) ), ) Only Android (more flexibility): import ‘package:flutter/services.dart’; void main() { SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle( systemNavigationBarColor: Colors.blue, // navigation … Read more
By far, the easiest solution is to use Scrollable.ensureVisible(context). As it does everything for you and work with any widget size. Fetching the context using GlobalKey. The problem is that ListView won’t render non-visible items. Meaning that your target most likely will not be built at all. Which means your target will have no context … Read more
The build method is designed in such a way that it should be pure/without side effects. This is because many external factors can trigger a new widget build, such as: Route pop/push Screen resize, usually due to keyboard appearance or orientation change The parent widget recreated its child An InheritedWidget the widget depends on (Class.of(context) … Read more