snap 1.0.1+1 
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cosmossoftware.coffeeAn extensive snap tool/widget for Flutter that allows very flexible snap management and snapping between your widgets.
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// © Cosmos Software | Ali Yigit Bireroglu /
// All material used in the making of this code, project, program, application, software et cetera (the "Intellectual Property") /
// belongs completely and solely to Ali Yigit Bireroglu. This includes but is not limited to the source code, the multimedia and /
// other asset files. If you were granted this Intellectual Property for personal use, you are obligated to include this copyright /
// text at all times. /
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//@formatter:off
import 'package:flutter/foundation.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:snap/snap.dart';
List<GlobalKey> bounds = List<GlobalKey>();
List<GlobalKey> views = List<GlobalKey>();
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Snap Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Snap Demo'));
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
double bottom = -200.0;
@override
void initState() {
super.initState();
for (int i = 0; i < 6; i++) {
bounds.add(GlobalKey());
views.add(GlobalKey());
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text(widget.title)),
body: PageView(
onPageChanged: (int index) {
if (index == 1)
setState(() {
bottom = 0.0;
});
else
setState(() {
bottom = -200.0;
});
},
children: [
Scaffold(
body: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
description("The box will snap to the corners or the center."),
gap(),
Expanded(
child: Align(
key: bounds[0],
alignment: const Alignment(-1.0, -1.0),
child: SnapController(firstNormalBoxView(), true, views[0], bounds[0], Offset.zero, const Offset(1.0, 1.0),
const Offset(0.75, 0.75), const Offset(0.75, 0.75),
snapTargets: [
const SnapTarget(Pivot.topLeft, Pivot.topLeft),
const SnapTarget(Pivot.topRight, Pivot.topRight),
const SnapTarget(Pivot.bottomLeft, Pivot.bottomLeft),
const SnapTarget(Pivot.bottomRight, Pivot.bottomRight),
const SnapTarget(Pivot.center, Pivot.center)
])))
])),
Scaffold(
body: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
description("The box will snap to the closest side regardless of animation."),
gap(),
Expanded(
child: Align(
key: bounds[1],
alignment: const Alignment(-1.0, -1.0),
child: Stack(children: [
AnimatedPositioned(
left: 0,
bottom: bottom,
duration: Duration(milliseconds: 300),
child: SnapController(animatedBoxView(), true, views[1], bounds[1], Offset.zero, const Offset(1.0, 1.0),
const Offset(0.75, 0.75), const Offset(0.75, 0.75),
snapTargets: [const SnapTarget(Pivot.closestAny, Pivot.closestAny)]))
])))
])),
Scaffold(
body: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
description("The box will snap to the closest matching color."),
gap(),
Expanded(
child: Stack(children: [
Align(
key: bounds[2],
alignment: const Alignment(-1.0, -1.0),
child: SnapController(dottedBoxView(), true, views[2], bounds[2], Offset.zero, const Offset(1.0, 1.0), const Offset(0.75, 0.75),
const Offset(0.75, 0.75),
snapTargets: [
const SnapTarget(const Offset(0.1, 0.1), const Offset(0.1, 0.1)),
const SnapTarget(const Offset(0.9, 0.1), const Offset(0.85, 0.465)),
const SnapTarget(const Offset(0.1, 0.9), const Offset(0.1, 0.9)),
])),
Align(alignment: const Alignment(-0.85, -0.85), child: Container(width: 10, height: 10, color: Colors.orangeAccent)),
Align(alignment: const Alignment(0.75, -0.1), child: Container(width: 10, height: 10, color: Colors.black)),
Align(alignment: const Alignment(-0.85, 0.85), child: Container(width: 10, height: 10, color: Colors.deepPurpleAccent))
]))
])),
Scaffold(
body: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
description("The box will snap to the corners or the center while maintaining the initial offset"),
gap(),
Expanded(
child: Align(
key: bounds[3],
alignment: const Alignment(-1.0, -1.0),
child: SnapController(
translatedBoxView(),
true,
views[3],
bounds[3],
Offset(50.0 / MediaQuery.of(context).size.width, 50.0 / MediaQuery.of(context).size.height),
Offset(1.0, 1.0) - Offset(50.0 / MediaQuery.of(context).size.width, 50.0 / MediaQuery.of(context).size.height),
const Offset(0.75, 0.75),
const Offset(0.75, 0.75),
snapTargets: [
SnapTarget(Pivot.topLeft, Offset(50.0 / MediaQuery.of(context).size.width, 50.0 / MediaQuery.of(context).size.height)),
SnapTarget(
Pivot.topRight, Offset(1.0 - 50.0 / MediaQuery.of(context).size.width, 50.0 / MediaQuery.of(context).size.height)),
SnapTarget(Pivot.bottomLeft,
Offset(50.0 / MediaQuery.of(context).size.width, 1.0 - 50.0 / MediaQuery.of(context).size.height)),
SnapTarget(Pivot.bottomRight,
Offset(1.0, 1.0) - Offset(50.0 / MediaQuery.of(context).size.width, 50.0 / MediaQuery.of(context).size.height)),
const SnapTarget(Pivot.center, Pivot.center)
])))
])),
Scaffold(
body: Column(crossAxisAlignment: CrossAxisAlignment.center, children: [
description("The box will snap to the closest side or the center within its container."),
gap(),
Container(
width: 300,
height: 300,
color: Colors.orangeAccent,
child: Align(
key: bounds[4],
alignment: const Alignment(-1.0, -1.0),
child: SnapController(smallBoxView(), true, views[4], bounds[4], Offset.zero, const Offset(1.0, 1.0), const Offset(0.15, 0.15),
const Offset(0.15, 0.15),
snapTargets: [const SnapTarget(Pivot.closestAny, Pivot.closestAny), const SnapTarget(Pivot.center, Pivot.center)]),
))
])),
Scaffold(
body: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
description("The box will snap to the corners or the center without animation."),
gap(),
Expanded(
child: Align(
key: bounds[5],
alignment: const Alignment(-1.0, -1.0),
child: SnapController(secondNormalBoxView(), false, views[5], bounds[5], Offset.zero, const Offset(1.0, 1.0),
const Offset(0.75, 0.75), const Offset(0.75, 0.75),
snapTargets: [
const SnapTarget(Pivot.topLeft, Pivot.topLeft),
const SnapTarget(Pivot.topRight, Pivot.topRight),
const SnapTarget(Pivot.bottomLeft, Pivot.bottomLeft),
const SnapTarget(Pivot.bottomRight, Pivot.bottomRight),
const SnapTarget(Pivot.center, Pivot.center)
],
animateSnap: false)))
])),
]));
}
}
Widget description(String text) {
return Container(
constraints: const BoxConstraints.expand(height: 75),
color: Colors.green,
child: Center(
child: Padding(
padding: const EdgeInsets.all(10),
child:
Text(text, style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 15), textAlign: TextAlign.center))));
}
Widget gap() {
return Container(
constraints: const BoxConstraints.expand(height: 25),
color: Colors.transparent,
child: Center(
child: const Text("- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ",
style: const TextStyle(color: Colors.black, fontWeight: FontWeight.bold, fontSize: 10), textAlign: TextAlign.center)));
}
Widget firstNormalBoxView() {
return normalBox(views[0], "Move & Snap", Colors.redAccent);
}
Widget animatedBoxView() {
return normalBox(views[1], "Move & Snap", Colors.redAccent);
}
Widget dottedBoxView() {
return dottedBox(views[2], "Move & Snap", Colors.redAccent);
}
Widget translatedBoxView() {
return translatedBox(views[3], "Move & Snap", Colors.redAccent);
}
Widget smallBoxView() {
return smallBox(views[4], "*", Colors.redAccent);
}
Widget secondNormalBoxView() {
return normalBox(views[5], "Move & Snap", Colors.redAccent);
}
Widget thirdNormalBoxView() {
return normalBox(views[6], "Move & Snap", Colors.redAccent);
}
Widget normalBox(Key key, String text, Color color) {
return Container(
key: key,
width: 200,
height: 200,
color: Colors.transparent,
child: Padding(
padding: const EdgeInsets.all(5),
child: Container(
constraints: BoxConstraints.expand(),
decoration: BoxDecoration(color: color, borderRadius: const BorderRadius.all(const Radius.circular(10.0))),
child: Center(child: Text(text, style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 25))))));
}
Widget translatedBox(Key key, String text, Color color) {
return Transform.translate(
offset: const Offset(50, 50),
child: Container(
key: key,
width: 200,
height: 200,
color: Colors.transparent,
child: Padding(
padding: const EdgeInsets.all(5),
child: Container(
constraints: BoxConstraints.expand(),
decoration: BoxDecoration(color: color, borderRadius: const BorderRadius.all(const Radius.circular(10.0))),
child: Center(child: Text(text, style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 25)))))));
}
Widget smallBox(Key key, String text, Color color) {
return Container(
key: key,
width: 50,
height: 50,
color: Colors.transparent,
child: Padding(
padding: const EdgeInsets.all(5),
child: Container(
constraints: BoxConstraints.expand(),
decoration: BoxDecoration(color: color, borderRadius: const BorderRadius.all(const Radius.circular(0.0))),
child: Center(child: Text(text, style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 25))))));
}
Widget dottedBox(Key key, String text, Color color) {
return Transform.translate(
offset: const Offset(75, 100),
child: Container(
key: key,
width: 200,
height: 200,
color: Colors.transparent,
child: Stack(children: [
Padding(
padding: const EdgeInsets.all(5),
child: Container(
constraints: BoxConstraints.expand(),
decoration: BoxDecoration(color: color, borderRadius: const BorderRadius.all(const Radius.circular(10.0))),
child: Center(child: Text(text, style: const TextStyle(color: Colors.white, fontWeight: FontWeight.bold, fontSize: 25))))),
Align(alignment: const Alignment(-0.9, -0.9), child: Container(width: 10, height: 10, color: Colors.orangeAccent)),
Align(alignment: const Alignment(0.9, -0.9), child: Container(width: 10, height: 10, color: Colors.black)),
Align(alignment: const Alignment(-0.9, 0.9), child: Container(width: 10, height: 10, color: Colors.deepPurpleAccent))
])));
}Metadata
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pub points
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popularity
Publisher
Metadata
An extensive snap tool/widget for Flutter that allows very flexible snap management and snapping between your widgets.
Homepage
Repository (GitHub)
View/report issues
License
unknown (LICENSE)
