create_atom 2.0.0 
create_atom: ^2.0.0 copied to clipboard
An animated widget that displays atom with three electrons revolving around a nucleus at its center.
// Copyright 2020 Abhishek Dubey. All rights reserved.
// Use of this source code is governed by a MIT license that can be
// found in the LICENSE file.
import 'dart:math';
import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:create_atom/create_atom.dart';
import 'package:flutter_colorpicker/flutter_colorpicker.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
theme: ThemeData(
brightness: Brightness.dark,
visualDensity: VisualDensity.adaptivePlatformDensity,
),
home: MyAtoms(),
);
}
}
class MyAtoms extends StatefulWidget {
@override
_MyAtomsState createState() => _MyAtomsState();
}
class _MyAtomsState extends State<MyAtoms> {
static int _currentIndex = 1;
static final List<Widget> _pages = [
RandomAtoms(),
AtomPlayground(),
];
Widget _showText(text) {
return Text(
text,
style: TextStyle(
fontFamily: "Quicksand",
fontSize: 100.0,
color: Colors.white,
),
);
}
Widget _bottomNavBar() {
return BottomNavigationBar(
currentIndex: _currentIndex,
backgroundColor: Colors.black,
unselectedItemColor: Colors.white,
items: [
BottomNavigationBarItem(
icon: Icon(Icons.all_inclusive),
title: Text("Random"),
),
BottomNavigationBarItem(
icon: Icon(Icons.play_arrow),
title: Text("Playground"),
),
],
onTap: (int index) => setState(() => _currentIndex = index),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
appBar: PreferredSize(
preferredSize: Size.fromHeight(150.0),
child: SizedBox(
height: 200.0,
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
_showText("A "),
_showText("T "),
Atom(
size: 75.25,
orbitsColor: Colors.white,
nucleusColor: Colors.white,
electronsColor: Colors.white,
),
_showText(" M"),
],
),
),
),
body: _pages[_currentIndex],
bottomNavigationBar: _bottomNavBar(),
);
}
}
class RandomAtoms extends StatefulWidget {
@override
_RandomAtomsState createState() => _RandomAtomsState();
}
class _RandomAtomsState extends State<RandomAtoms> {
static final _rand = new Random();
static int _r, _g, _b;
int _genRand(int min, int max) => min + _rand.nextInt(max - min);
_genColor() {
return Color.fromRGBO(
_r,
_g,
_b,
1.0,
);
}
_genRandColor() {
_r = _genRand(0, 255);
_g = _genRand(0, 255);
_b = _genRand(0, 255);
return _genColor();
}
Widget _atomGrid() {
return GridTile(
child: Atom(
size: 129,
orbitsColor: _genRandColor(),
nucleusColor: _genRandColor(),
electronsColor: _genRandColor(),
orbit1Angle: (pi / 180) * _genRand(0, 361),
orbit2Angle: (pi / 180) * _genRand(0, 361),
orbit3Angle: (pi / 180) * _genRand(0, 361),
animDuration1: Duration(milliseconds: _genRand(250, 5000)),
animDuration2: Duration(milliseconds: _genRand(250, 5000)),
animDuration3: Duration(milliseconds: _genRand(250, 5000)),
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: GridView.count(
crossAxisCount: 3,
padding: EdgeInsets.all(4.0),
children: <Widget>[
_atomGrid(),
_atomGrid(),
_atomGrid(),
_atomGrid(),
_atomGrid(),
_atomGrid(),
_atomGrid(),
_atomGrid(),
_atomGrid(),
],
),
floatingActionButton: FloatingActionButton(
onPressed: () => setState(() {}),
child: Icon(Icons.refresh),
tooltip: "Randomize",
),
);
}
}
class AtomPlayground extends StatefulWidget {
@override
_AtomPlaygroundState createState() => _AtomPlaygroundState();
}
class _AtomPlaygroundState extends State<AtomPlayground> {
double _scale = 200;
double _oAngle1 = 0.0;
double _oAngle2 = 1.047198;
double _oAngle3 = 5.235988;
Color _nColor = Color(0xffffffff);
Color _oColor = Color(0xffffffff);
Color _eColor = Color(0xffffffff);
double _eSpeed1 = 1000.0;
double _eSpeed2 = 2000.0;
double _eSpeed3 = 3000.0;
Duration _eDur1 = Duration(milliseconds: 1000);
Duration _eDur2 = Duration(milliseconds: 2000);
Duration _eDur3 = Duration(milliseconds: 3000);
Widget _centerW;
int _radioButton;
void _changeNColor(Color colorNext) {
setState(() => _nColor = colorNext);
}
void _changeOColor(Color colorNext) {
setState(() => _oColor = colorNext);
}
void _changeEColor(Color colorNext) {
setState(() => _eColor = colorNext);
}
_colorPicker(colorValue, colorFunction) {
return showDialog(
context: context,
child: AlertDialog(
titlePadding: EdgeInsets.all(0.0),
contentPadding: const EdgeInsets.all(0.0),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(25.0),
),
content: SingleChildScrollView(
child: SlidePicker(
pickerColor: colorValue,
onColorChanged: colorFunction,
paletteType: PaletteType.rgb,
enableAlpha: false,
displayThumbColor: true,
showLabel: false,
showIndicator: true,
indicatorBorderRadius: BorderRadius.vertical(top: Radius.circular(25.0)),
),
),
),
);
}
Widget _scaleSlider() {
return Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
runSpacing: 10.0,
children: [
Text(
"Scale :",
style: TextStyle(color: Colors.white70),
),
Container(
width: 350.0,
child: Slider(
min: 21.5,
max: 430,
value: _scale,
onChanged: (val) => setState(() => _scale = val),
),
),
],
);
}
Widget _oAngleSlider1() {
return Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
runSpacing: 10.0,
children: [
Text(
"Orbit 1 :",
style: TextStyle(color: Colors.white70),
),
Container(
width: 350.0,
child: Slider(
min: 0.0,
max: 2 * pi,
divisions: 360,
value: _oAngle1,
onChanged: (val) => setState(() => _oAngle1 = val),
),
),
],
);
}
Widget _oAngleSlider2() {
return Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
runSpacing: 10.0,
children: [
Text(
"Orbit 2 :",
style: TextStyle(color: Colors.white70),
),
Container(
width: 350.0,
child: Slider(
min: 0.0,
max: 2 * pi,
divisions: 360,
value: _oAngle2,
onChanged: (val) => setState(() => _oAngle2 = val),
),
),
],
);
}
Widget _oAngleSlider3() {
return Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
runSpacing: 10.0,
children: [
Text(
"Orbit 3 :",
style: TextStyle(color: Colors.white70),
),
Container(
width: 350.0,
child: Slider(
min: 0.0,
max: 2 * pi,
divisions: 360,
value: _oAngle3,
onChanged: (val) => setState(() => _oAngle3 = val),
),
),
],
);
}
Widget _colorSelectors() {
return Padding(
padding: const EdgeInsets.fromLTRB(0.0, 10.0, 0.0, 10.0),
child: Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
runSpacing: 10.0,
children: [
Text(
"Nucleus Color :",
style: TextStyle(color: Colors.white70),
),
VerticalDivider(),
GestureDetector(
onTap: () {
_colorPicker(_nColor, _changeNColor);
},
child: Container(
width: 30.0,
height: 30.0,
decoration: BoxDecoration(color: _nColor, shape: BoxShape.circle, border: Border.all(color: Colors.white)),
),
),
VerticalDivider(),
Text(
"Orbits Color :",
style: TextStyle(color: Colors.white70),
),
VerticalDivider(),
GestureDetector(
onTap: () {
_colorPicker(_oColor, _changeOColor);
},
child: Container(
width: 30.0,
height: 30.0,
decoration: BoxDecoration(color: _oColor, shape: BoxShape.circle, border: Border.all(color: Colors.white)),
),
),
VerticalDivider(),
Text(
"Electrons Color :",
style: TextStyle(color: Colors.white70),
),
VerticalDivider(),
GestureDetector(
onTap: () {
_colorPicker(_eColor, _changeEColor);
},
child: Container(
width: 30.0,
height: 30.0,
decoration: BoxDecoration(color: _eColor, shape: BoxShape.circle, border: Border.all(color: Colors.white)),
),
),
],
),
);
}
Widget _eSpeedSlider1() {
return Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
runSpacing: 10.0,
children: [
Text(
"ESpeed 1 :",
style: TextStyle(color: Colors.white70),
),
Container(
width: 350.0,
child: Slider.adaptive(
min: 50,
max: 6000,
value: _eSpeed1,
onChanged: (val) => setState(() {
_eDur1 = Duration(milliseconds: val.toInt());
_eSpeed1 = val;
}),
),
),
],
);
}
Widget _eSpeedSlider2() {
return Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
runSpacing: 10.0,
children: [
Text(
"ESpeed 2 :",
style: TextStyle(color: Colors.white70),
),
Container(
width: 350.0,
child: Slider(
min: 50,
max: 6000,
value: _eSpeed2,
onChanged: (val) => setState(() {
_eDur2 = Duration(milliseconds: val.toInt());
_eSpeed2 = val;
}),
),
),
],
);
}
Widget _eSpeedSlider3() {
return Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
runSpacing: 10.0,
children: [
Text(
"ESpeed 3 :",
style: TextStyle(color: Colors.white70),
),
Container(
width: 350.0,
child: Slider(
min: 50,
max: 6000,
value: _eSpeed3,
onChanged: (val) => setState(() {
_eDur3 = Duration(milliseconds: val.toInt());
_eSpeed3 = val;
}),
),
),
],
);
}
Widget _centerWidgetBar() {
return Wrap(
alignment: WrapAlignment.center,
crossAxisAlignment: WrapCrossAlignment.center,
children: <Widget>[
Text(
"Center Widget :",
style: TextStyle(color: Colors.white70),
textAlign: TextAlign.justify,
overflow: TextOverflow.ellipsis,
),
VerticalDivider(),
Radio(
value: 1,
groupValue: _radioButton,
onChanged: (val) {
setState(() {
_centerW = null;
_radioButton = val;
});
},
),
Text(
"No",
style: TextStyle(color: Colors.white70),
),
VerticalDivider(width: 5.0),
Radio(
value: 2,
groupValue: _radioButton,
onChanged: (val) {
setState(() {
_centerW = Atom(
size: 50,
nucleusColor: _nColor,
orbitsColor: _oColor,
electronsColor: _eColor,
);
_radioButton = val;
});
},
),
Text(
"Atom",
style: TextStyle(color: Colors.white70),
),
VerticalDivider(width: 5.0),
Radio(
value: 3,
groupValue: _radioButton,
onChanged: (val) {
setState(() {
_centerW = Text(
"Atom",
style: TextStyle(color: _nColor),
);
_radioButton = val;
});
},
),
Text(
"Text",
style: TextStyle(color: Colors.white70),
),
],
);
}
void initState() {
super.initState();
_radioButton = 1;
}
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.black,
body: Center(
child: Padding(
padding: EdgeInsets.fromLTRB(10.0, 10.0, 10.0, 10.0),
child: Stack(
children: [
Align(
alignment: Alignment.topCenter,
child: Atom(
size: _scale,
orbit1Angle: _oAngle1,
orbit2Angle: _oAngle2,
orbit3Angle: _oAngle3,
nucleusColor: _nColor,
orbitsColor: _oColor,
electronsColor: _eColor,
animDuration1: _eDur1,
animDuration2: _eDur2,
animDuration3: _eDur3,
centerWidget: _centerW,
),
),
Align(
alignment: Alignment.bottomCenter,
child: ClipRect(
child: BackdropFilter(
filter: ImageFilter.blur(sigmaX: 10.0, sigmaY: 10.0),
child: Container(
height: 200,
decoration: BoxDecoration(
color: Colors.white.withOpacity(0.15),
borderRadius: BorderRadius.circular(10.0),
),
child: SingleChildScrollView(
padding: EdgeInsets.fromLTRB(10.0, 20.0, 10.0, 10.0),
physics: BouncingScrollPhysics(),
child: Column(
children: [
_scaleSlider(),
Divider(thickness: 2.0),
_oAngleSlider1(),
_oAngleSlider2(),
_oAngleSlider3(),
Divider(thickness: 2.0),
_colorSelectors(),
Divider(thickness: 2.0),
_eSpeedSlider1(),
_eSpeedSlider2(),
_eSpeedSlider3(),
Divider(thickness: 2.0),
_centerWidgetBar(),
],
),
),
),
),
),
),
],
),
),
),
);
}
}Metadata
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likes
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points
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downloads
Publisher
unverified uploader
Weekly Downloads
Metadata
An animated widget that displays atom with three electrons revolving around a nucleus at its center.
Repository (GitHub)
View/report issues
License
MIT (license)
