Flutter: El comportamiento de GestureDetector depende de la propiedad del contenedor interno

Pasos para reproducir

Hay dos GestureDetectors que incluyen un contenedor con relleno,
la única diferencia es si el contenedor interno tiene propiedad de color o no.

Toque el espacio alrededor de los iconos, es decir, toque el área de relleno:

• El contenedor tiene color: onTap se llama
• El contenedor no tiene color: onTap no se llama

import 'package:flutter/foundation.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/material.dart';

void main() {
  final GlobalKey<ScaffoldState> _key = new GlobalKey<ScaffoldState>();
  runApp(new MaterialApp(
    title: 'GestureDetector Test',
    home: new Builder(builder: (BuildContext context) {
      return new Scaffold(
        key: _key,
        appBar: new AppBar(title: new Text("GestureDetector Test")),
        body: new Column(
          children: <Widget>[
            new Container(
              child: new GestureDetector(
                onTap: () {
                  _key.currentState.showSnackBar(new SnackBar(content: new Text("Foo!")));
                },
                child: new Container(
                  color: Colors.blue,
                  padding: const EdgeInsets.all(16.0),
                  child: const Icon(Icons.star, size: 32.0),
                ),
              )
            ),
            new Container(
              child: new GestureDetector(
                onTap: () {
                  _key.currentState.showSnackBar(new SnackBar(content: new Text("Bar!")));
                },
                child: new Container(
                  //color: Colors.blue, // no color
                  padding: const EdgeInsets.all(16.0),
                  child: const Icon(Icons.star, size: 32.0),
                ),
              )
            ),
          ],
        ),
      );
    }),
  ));
}

Toque el icono en sí, ambos onTap serán llamados.

Doctor Aleteo

alfa 0.0.20

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