mek_floating_drag 0.1.3+1 mek_floating_drag: ^0.1.3+1 copied to clipboard
Enable a widget to be dragged allowing it to be removed if dropped in an area or hidden if time passes or is pressed out.
import 'package:flutter/material.dart';
import 'package:mek_floating_drag/mek_floating_drag.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Mek Floating Drag',
theme: ThemeData(
primarySwatch: Colors.deepPurple,
),
home: const MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key}) : super(key: key);
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> with TickerProviderStateMixin {
late final _draggableController = FloatingDraggableController(vsync: this);
@override
void dispose() {
_draggableController.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
final scaffold = Scaffold(
appBar: AppBar(
title: const Text('Mek Floating Drag'),
actions: [
AnimatedBuilder(
animation: _draggableController.visibilityAnimation,
child: IconButton(
onPressed: () => _draggableController.show(),
icon: const Icon(Icons.add),
),
builder: (context, child) {
return Transform.scale(
scale: 1 - _draggableController.visibilityAnimation.value,
transformHitTests: false,
child: child!,
);
},
),
],
),
body: SingleChildScrollView(
child: Column(
children: Colors.primaries.reversed.map((color) {
return Container(
height: 100.0,
color: color,
);
}).toList(),
),
),
);
const dragTargetBin = FloatingCircularDragBin();
final draggable = FloatingDraggable(
controller: _draggableController,
naturalEdgesResolver: (containerSize, childSize) {
return const EdgeInsets.symmetric(horizontal: double.nan, vertical: 16.0);
},
elasticEdgesResolver: (containerSize, childSize) {
return const EdgeInsets.symmetric(horizontal: 16.0, vertical: double.nan);
},
retractEdgesResolver: (containerSize, childSize) {
return EdgeInsets.symmetric(horizontal: -(0.60 * childSize.width), vertical: double.nan);
},
child: FloatingActionButton(
onPressed: () => ScaffoldMessenger.of(context).showSnackBar(SnackBar(
duration: const Duration(seconds: 1),
content: Text('Tapped!'),
)),
child: const Icon(Icons.message),
),
);
final result = FlyZone.inStack(
entries: [
const Positioned(
bottom: 16.0,
right: 0.0,
left: 0.0,
child: dragTargetBin,
),
Positioned(
bottom: 16.0,
right: 16.0,
child: draggable,
),
],
child: RestrictedFlyZone(
child: scaffold,
),
);
return result;
}
}