glissando

Description:

glissando

glissando #
Slide across widgets while the pointer is down.

Usage #
Wrap your widget in a Glissando.
import 'package:flutter/material.dart';
import 'package:glissando/glissando.dart';

void main() {
runApp(MaterialApp(
home: Glissando(
child: Row(
children: [
Listener(
onPointerDown: (_) => print("1 down"),
onPointerCancel: (_) => print("1 cancel"),
onPointerUp: (_) => print("1 up"),
child: Container(
color: Colors.red,
width: 100,
height: 100,
),
),
Listener(
onPointerDown: (_) => print("2 down"),
onPointerCancel: (_) => print("2 cancel"),
onPointerUp: (_) => print("2 up"),
child: Container(
color: Colors.blue,
width: 100,
height: 100,
),
),
],
),
),
));
}
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When you slide from widget A to widget B, widget A will receive a pointer cancel
event, while widget B will receive a pointer down event.
The property
PointerEvent.isGlissandoEvent is available for determining if an event was synthesized by this
package.
When you lift the pointer, the widget that last got the down event will get the pointer up event.