The web server’s Content-Type header is Content-Type: text/html. Note that isn’t including a charset suffix. It should be saying Content-Type: text/html; charset=utf-8. The package:http client looks for this charset when asked to decode to characters. If it’s missing it defaults to LATIN1 (not utf-8). As you’ve seen, setting the headers on the Request doesn’t help, … Read more
Here’s a sketch of how to implement a Speed dial using FloatingActionButton. import ‘package:flutter/material.dart’; import ‘dart:math’ as math; void main() { runApp(new MyApp()); } class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return new MaterialApp( home: new MyHomePage(), ); } } class MyHomePage extends StatefulWidget { @override State createState() => new MyHomePageState(); } … Read more
Could you create your keys “by hand” and use static/constant values? e.g. … import ‘package:flutter/widgets.dart’; class RIKeys { static final riKey1 = const Key(‘__RIKEY1__’); static final riKey2 = const Key(‘__RIKEY2__’); static final riKey3 = const Key(‘__RIKEY3__’); } then in … body: new TabBarView( children: [ new RefreshIndicator(new RefreshIndicator( // Use the Manual Static Value instead … Read more
I would probably use a BoxDecoration with a DecorationImage. You can use the alignment and fit properties to determine how your image is cropped. You can use an AspectRatio widget if you don’t want to hard code a height on the Container. import ‘package:flutter/material.dart’; void main() { runApp(new MaterialApp( home: new MyHomePage(), )); } class … Read more
Navigate to a new screen: Navigator.of(context).push(MaterialPageRoute(builder: (context) => NewScreen())); where context is the BuildContext of a widget and NewScreen is the name of the second widget layout. Code main.dart import ‘package:flutter/material.dart’; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: ‘Flutter Demo’, theme: ThemeData(primarySwatch: Colors.blue), home: HomeScreen(), … Read more
You’re looking for “identical”, which will check if 2 instances are the same. identical(this, other); A more detailed example? class Person { String ssn; String name; Person(this.ssn, this.name); // Define that two persons are equal if their SSNs are equal bool operator ==(Person other) { return (other.ssn == ssn); } } main() { var bob … Read more
There is an easy way to create and run a Dart console application: Open VSCode Press cmd + shift + p on Mac or ctrl + shift + p on windows. Choose Dart: New project 4.Then you should select Console Application 5.After locating console application everything is ready for you 😊 Well, how to run … Read more
Declare your Color: const primaryColor = Color(0xFF151026); In the MaterialApp level (will change the AppBar Color in the whole app ) change primaryColor return MaterialApp( title: ‘Flutter Demo’, theme: ThemeData( primaryColor: primaryColor, ), home: MyApp(), ); and if you want to change it on the Widget level modify the backgroundColor appBar: AppBar( backgroundColor: primaryColor, ),
There is a Medium blogpost that explains how to do this. However we thought it was way too complicated to set up so it just happens we created a plugin that aids you with this. //Provide a top level function or static function. //This function will be called by Android and will return the value … Read more
You need to add three additional steps: First, you need to convert the JSON map to a String (using json.encode) Then you need to Uri encode it if you want to send it as application/x-www-form-urlencoded. Lastly, you need to give the parameter that you are posting a name. For example (note, this is using the … Read more