I couldn't display an image in Dart - flutter

I am trying to display a picture but it didn't work well.

I guess this is what you're looking for.
body: Center(
child: Image.network(
'https://docs.flutter.dev/assets/images/dash/dash-fainting.gif', width: 200, height: 200,),
),
Here is the complete code.
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Home',
home: Scaffold(
appBar: AppBar(title: Text('Image ornekleri')),
body: Center(
child: Image.network(
'https://docs.flutter.dev/assets/images/dash/dash-fainting.gif', width: 200, height: 200,),
),
),
);
}
}
You can use Image.asset() if you have local image files as explained here

Related

how to round image that is not square, for example rectangle

I have code like this
ClipRRect(
borderRadius:
BorderRadius.all(Radius.circular(100.0)),
child: Image.network(
image_link_from_api,
width: 100,
height: 100,
fit: BoxFit.fill,
),
),
I tried ClipRRect, avatar image, container with rounded corners, nothing seems to work, so how can I fill whole round image instead of something like this in above image?
I tried fill, cover, contain, every possible option
The effect of running your code:
import 'package:flutter/material.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
#override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
ClipRRect(
borderRadius: const BorderRadius.all(Radius.circular(100.0)),
child: Image.network(
'https://i.ibb.co/37ZfCpQ/20230113213218image-thumbnail-media-433.jpg',
width: 100,
height: 100,
fit: BoxFit.fill,
),
),
],
),
),
);
}
}

How to Make half screen like google assistant in flutter

Like this half screen
How can I achieve it in flutter? Please guide me in making this
many thanks for considering my request.
These are called bottom sheets. Please try the code below.
Bottom Sheet
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
static const String _title = 'Flutter Code Sample';
#override
Widget build(BuildContext context) {
return MaterialApp(
title: _title,
home: Scaffold(
appBar: AppBar(title: const Text(_title)),
body: const MyStatelessWidget(),
),
);
}
}
class MyStatelessWidget extends StatelessWidget {
const MyStatelessWidget({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
return Center(
child: ElevatedButton(
child: const Text('showModalBottomSheet'),
onPressed: () {
showModalBottomSheet<void>(
context: context,
builder: (BuildContext context) {
return Container(
height: 200,
color: Colors.amber,
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
mainAxisSize: MainAxisSize.min,
children: <Widget>[
const Text('Modal BottomSheet'),
ElevatedButton(
child: const Text('Close BottomSheet'),
onPressed: () => Navigator.pop(context),
)
],
),
),
);
},
);
},
),
);
}
}

How to create interactive flowchart in flutter

I want to create a flutter UI where there are some shapes like square, rectangle, circle, arrow. And I must be able to drag and drop them at the centre and add text to it and connect them. I have just started with flutter so I am not sure how to do this. Can anyone please help me?
Use Draggable class
Example:
import 'package:flutter/material.dart';
void main() => runApp(const MyApp());
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
static const String _title = 'Flutter Code Sample';
#override
Widget build(BuildContext context) {
return MaterialApp(
title: _title,
home: Scaffold(
appBar: AppBar(title: const Text(_title)),
body: const MyStatefulWidget(),
),
);
}
}
class MyStatefulWidget extends StatefulWidget {
const MyStatefulWidget({Key? key}) : super(key: key);
#override
State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}
class _MyStatefulWidgetState extends State<MyStatefulWidget> {
int acceptedData = 0;
#override
Widget build(BuildContext context) {
return Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
Draggable<int>(
// Data is the value this Draggable stores.
data: 10,
feedback: Container(
color: Colors.deepOrange,
height: 100,
width: 100,
child: const Icon(Icons.directions_run),
),
childWhenDragging: Container(
height: 100.0,
width: 100.0,
color: Colors.pinkAccent,
child: const Center(
child: Text('Child When Dragging'),
),
),
child: Container(
height: 100.0,
width: 100.0,
color: Colors.lightGreenAccent,
child: const Center(
child: Text('Draggable'),
),
),
),
DragTarget<int>(
builder: (
BuildContext context,
List<dynamic> accepted,
List<dynamic> rejected,
) {
return Container(
height: 100.0,
width: 100.0,
color: Colors.cyan,
child: Center(
child: Text('Value is updated to: $acceptedData'),
),
);
},
onAccept: (int data) {
setState(() {
acceptedData += data;
});
},
),
],
);
}
}

No MediaQuery widget ancestor found while using MediaQuery.of(context)

I am getting an error saying No MediaQuery widget ancestor found while using MediaQuery.of(context). Here is my code and I am using MediaQuery.of(context) inside a MaterialApp but it is still giving me errors. Can someone help?
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
final mediaQuery = MediaQuery.of(context);
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: Text('Responsive'),
),
body: SingleChildScrollView(
child: Column(
children: [
Container(
color: Colors.red,
height: mediaQuery.size.height,
),
Container(
color: Colors.amber,
height: 200,
),
],
),
),
),
);
}
}
Error
You get this error because your MediaQuery is out of MaterialApp. Use material home as seperate Stateless of Statefull widget.
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
final mediaQuery = MediaQuery.of(context);
return MaterialApp(
home: Home();
}
}
class Home extends StatelessWidget {
const Home({Key? key}) : super(key: key);
#override
Widget build(BuildContext context) {
final mediaQuery = MediaQuery.of(context);
return Scaffold(
appBar: AppBar(
title: Text('Responsive'),
),
body: SingleChildScrollView(
child: Column(
children: [
Container(
color: Colors.red,
height: mediaQuery.size.height,
),
Container(
color: Colors.amber,
height: 200,
),
],
),
),
);
}
}
you need to use media Query like that
Size size = MediaQuery.of(context).size;
and where you want to use so like this according width or height
height: size.height*0.1,

Flare Flutter Animations

Animations created with Flare Flutter (from 2dimensions.com) cannot switch between different animations of the same Flare Actor. If a black version is first, the white version will not display; if the white version is first, the black will display.
I am not sure if I am doing something wrong or if it is a bug. It can switch between colors, just not animations.
import 'package:flutter/material.dart';
import 'package:flare_flutter/flare_actor.dart';
const List<String> animations = ['White', 'Black'];
const List<Color> colors = [Colors.blue, Colors.black];
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Animation Tester',
debugShowCheckedModeBanner: false,
theme: new ThemeData(
primarySwatch: Colors.blue,
),
home: new MyHomePage(title: 'Animation Tester'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
#override
_MyHomePageState createState() => new _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int index = 0;
void switchAnimation() {
setState(() {
index = index < (animations.length - 1) ? index + 1 : 0;
});
}
#override
Widget build(BuildContext context) {
print(index);
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: ListView(
children: <Widget>[
GestureDetector(
onTap: switchAnimation,
child: Icon(
Icons.add,
size: 100.0,
)),
Container(
width: 200.0,
height: 200.0,
child: FlareActor(
'assets/color_wheel_loading.flr',
color: colors[index],
)),
Container(
width: 200.0,
height: 200.0,
child: FlareActor(
'assets/color_wheel_loading.flr',
animation: animations[index],
)),
Center(child: Text('$index'))
],
)),
);
}
}
I have tested your code with my own file, it works perfect. May be your animation names are not right, can you check.
Or you can test this file "https://www.2dimensions.com/a/whitewolfnegizzz/files/flare/pj" and using the code below.
import 'package:flutter/material.dart';
import 'package:flare_flutter/flare_actor.dart';
const List<String> animations = ['Build and Fade Out', 'Build'];
const List<Color> colors = [Colors.blue, Colors.black];
void main() => runApp(new MyApp());
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Animation Tester',
debugShowCheckedModeBanner: false,
theme: new ThemeData(
primarySwatch: Colors.blue,
),
home: new MyHomePage(title: 'Animation Tester'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
#override
_MyHomePageState createState() => new _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int index = 0;
void switchAnimation() {
setState(() {
index = index < (animations.length - 1) ? index + 1 : 0;
});
}
#override
Widget build(BuildContext context) {
print(index);
return Scaffold(
appBar: AppBar(
title: Text(widget.title),
),
body: Center(
child: ListView(
children: <Widget>[
GestureDetector(
onTap: switchAnimation,
child: Icon(
Icons.add,
size: 100.0,
)),
Container(
width: 200.0,
height: 200.0,
child: FlareActor(
'assets/color_wheel_loading.flr',
color: colors[index],
)),
Container(
width: 200.0,
height: 200.0,
child: FlareActor(
'assets/Pj.flr',
animation: animations[index],
)),
Center(child: Text('$index'))
],
)),
);
}
}
From what i observed, Flare animation names are case sensitive. If the animation names in the flare project are in lowercase, the animation property of your flare actor should also be in lowercase.
Add flr in assets.
initialize it in Pubsepec.yaml file
then add dependency of flare animation in pubsepec.yaml file
after this,
just use this code in your main file
Container(
height: MediaQuery.of(context).size.height *0.8,
child: FlareActor(
'assets/oncemore.flr',
animation: 'Celebrate Duplicate', // Check this, when you are downloading flr file from Flare 2D dimension website
fit: BoxFit.contain,
),
),
After this , Your Flare animation will work perfectly.