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,
),
),
],
),
),
));
}
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.
When you lift the pointer, the widget that last got the down event will get the pointer up event.
