flutter-layout

I want to make sure I cover all cases A Parent widget reads (and possibly uses) a child's size or constraints A Child widget reads (and possibly uses) a parent's size or constraints A Child widget reads (and possibly uses) another child's size or constraints The solution seems to be to... Let the build phase run Then the size and constraints of the widget I want to retreive data from are built Then I interrupt the regular sequence of phases (so the draw Frame function does not run) Then rerun the build phase with the data I now have And allow the frame to draw Problem is I don't know how to do

I need to choose best approach between two approaches that I can follow. I have a Flutter app that use sqflite to save data, inside the database I have two tables: Employee: +-------------+-----------------+------+ | employee_id | employee_name |dep_id| +-------------+-----------------+------+ | e12 | Ada Lovelace | dep1 | +-------------+-----------------+------+ | e22 | Albert Einstein | dep2 | +-------------+-----------------+------+ | e82 | Grace Hopper | dep3 | +-------------+-----------------+------+ SQL: CREATE TABLE Employee( employee_id TEXT NOT NULL PRIMARY KEY, employee_name TEXT NOT

How can I draw semicircle like this? Code: class DrawHalfCircleClipper extends CustomClipper<Path> { @override Path getClip(Size size) { final Path path = new Path(); ... return path; } @override bool shouldReclip(CustomClipper<Path> oldClipper) { return true; } Create a StatelessWidget say MyArc which accepts a diameter . class MyArc extends StatelessWidget { final double diameter; const MyArc({Key key, this.diameter = 200}) : super(key: key); @override Widget build(BuildContext context) { return CustomPaint( painter: MyPainter(), size: Size(diameter, diameter), ); } } // This is the Painter

What is the alternative to Recycle view in flutter I have tried using this code but how to do Animination with listview widget in flutter Is this valid? ListView( children: <Widget>[ ListTile( leading: Icon(Icons.map), title: Text('Map'), ), ListTile( leading: Icon(Icons.photo_album), title: Text('Album'), ), ListTile( leading: Icon(Icons.phone), title: Text('Phone'), ), ], ); You can also use animatedlist widget for animations. code example are given in the following link. AnimatedList CaballeroF ListView : Usually this should be used with a small number of children as the List will also

I am using GridView in my Flutter app to display images and their titles. Please check the below code. import 'package:flutter/material.dart'; import '../common_ui/search_bar.dart'; class PurchaseProductsPage extends StatelessWidget { @override Widget build(BuildContext context) { // TODO: implement build return PurchaseProductsUI(); } } class PurchaseProductsUI extends StatefulWidget { @override State<StatefulWidget> createState() { // TODO: implement createState return _PurchaseProductUIState(); } } class _PurchaseProductUIState extends State<PurchaseProductsUI> { @override Widget build

in this link in SF, @martinseal1987 show us how can we use separated widgets link with android fragments. I implemented this solution on my project and after running project i dont have any problem to show first widgets as an Fragment , but when i press to back button my screen goes to black and couldn't back to previous widgets as an fragment i think that is should be this: Problem is on navigateBack and customPop methods and i can attach fragment by pressing on button import 'package:flutter/material.dart'; void main() { runApp(MaterialApp( title: 'AndroidMonks', home: Scaffold( appBar:

In flutter implementing a tab layout is easy and straightforward. This is a simple example from the official documentation : import 'package:flutter/material.dart'; void main() { runApp(new TabBarDemo()); } class TabBarDemo extends StatelessWidget { @override Widget build(BuildContext context) { return new MaterialApp( home: new DefaultTabController( length: 3, child: new Scaffold( appBar: new AppBar( bottom: new TabBar( tabs: [ new Tab(icon: new Icon(Icons.directions_car)), new Tab(icon: new Icon(Icons.directions_transit)), new Tab(icon: new Icon(Icons.directions_bike)), ], ), title: new Text