flutter-layout

In Flutter, how can a positioned Widget feel taps outside of its parent Stack area?

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This behavior occurs because the stack checks whether the pointer is inside its bounds before checking whether a child got hit: Class: RenderBox (which RenderStack extends) bool hitTest(BoxHitTestResult result, { @required Offset position }) { … if (_size.contains(position)) { if (hitTestChildren(result, position: position) || hitTestSelf(position)) { result.add(BoxHitTestEntry(this, position)); return true; } } return false; } … Read more

Flutter/Dart – Open a view after a delay

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You can do it in 2 ways: Using Timer class. import ‘dart:async’; // Go to Page2 after 5s. Timer(Duration(seconds: 5), () { Navigator.push(context, MaterialPageRoute(builder: (_) => Screen2())); }); Using Future.delayed class: // Go to Page2 after 5s. Future.delayed(Duration(seconds: 5), () { Navigator.push(context, MaterialPageRoute(builder: (_) => Screen2())); }); The benefit of using Timer over Future is … Read more

Custom AppBar Flutter

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Screenshot: Code: Using flexibleSpace Scaffold( appBar: AppBar( toolbarHeight: 120, // Set this height flexibleSpace: Container( color: Colors.orange, child: Column( children: [ Text(‘One’), Text(‘Two’), Text(‘Three’), Text(‘Four’), ], ), ), ), ) Using PreferredSize Scaffold( appBar: PreferredSize( preferredSize: Size.fromHeight(120), // Set this height child: Container( color: Colors.orange, child: Column( mainAxisAlignment: MainAxisAlignment.center, children: [ Text(‘One’), Text(‘Two’), Text(‘Three’), Text(‘Four’), … Read more

Flutter Listview Scrollable Row

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Try this code, You can implement scrollable row in flutter using below code and for scrollable column just change Column with Row SingleChildScrollView( scrollDirection: Axis.horizontal, child: Row( children: <Widget>[ Text(‘hi’), Text(‘hi’), Text(‘hi’), ] ) ) Edit : The keyword new is optional in Dart 2 see the output here

Horizontally scrollable tabs focus on center with snap in flutter

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Same can be achieved using – unselectedLabelColor: & indicatorColor: of TabBar widget. Example Code: @override Widget build(BuildContext context) { return DefaultTabController( length: 6, child: Scaffold( appBar: AppBar( centerTitle: true, leading: Icon(Icons.person_outline), title: Text(‘DASHBOARD’,style: TextStyle(fontSize: 16.0),), bottom: PreferredSize( child: TabBar( isScrollable: true, unselectedLabelColor: Colors.white.withOpacity(0.3), indicatorColor: Colors.white, tabs: [ Tab( child: Text(‘Tab 1’), ), Tab( child: Text(‘Investment’), … Read more

Positioning a Widget in the end of the Row widget

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One solution is to use the Spacer widget to fill up the space https://docs.flutter.io/flutter/widgets/Spacer-class.html Row( mainAxisAlignment: MainAxisAlignment.start, //change here don’t //worked crossAxisAlignment: CrossAxisAlignment.center, children: <Widget>[ Container( margin: EdgeInsets.only(left: 8.0, top: 8.0, bottom: 8.0, right: 12.0), width: 15.0, height: 15.0, decoration: BoxDecoration( color: Colors.red, borderRadius: BorderRadius.circular(40.0)), ), Column( crossAxisAlignment: CrossAxisAlignment.start, children: <Widget>[ Text( “task.title”, style: TextStyle( … Read more