Flutter Web Mouse Region Widget Triggering

Question

Saya mencoba mendapatkan hasil ini dengan Flutter;

Saya mengalami perilaku ini;

Kode;

    import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'dart:html' as html;

class OverlayAnimatedGridElement extends StatefulWidget {
  OverlayAnimatedGridElement(this.imagepath, this.postDetail, this.postTitle);
  final String imagepath;
  final String postTitle;
  final String postDetail;

  @override
  _OverlayAnimatedGridElementState createState() =>
      _OverlayAnimatedGridElementState();
}

class _OverlayAnimatedGridElementState extends State<OverlayAnimatedGridElement>
    with TickerProviderStateMixin {
  AnimationController _controller;
  Animation<double> _opacityTween;
  bool isHovered = false;

  @override
  void initState() {
    _controller =
        AnimationController(vsync: this, duration: Duration(milliseconds: 500));
    _opacityTween = Tween<double>(begin: 0, end: 1).animate(
        CurvedAnimation(parent: _controller, curve: Curves.easeInOutCirc));

    super.initState();
  }

  hoverActivation(hoverState) {
    bool hoverState;
    isHovered = hoverState;
    if (isHovered = true) {
      _controller.forward();
    } else if (isHovered = false) {
      _controller.reset();
    }
    print("activated");
  }

  @override
  Widget build(BuildContext context) {
    _opacityTween.addListener(() {
      setState(() {
        print(_opacityTween.value);
      });
    });

    return MouseRegion(
      onHover: hoverActivation(true),
      child: Container(
        constraints: BoxConstraints(maxHeight: 360, maxWidth: 640),
        child: Stack(
          alignment: Alignment.bottomCenter,
          children: [
            Image(image: AssetImage("${widget.imagepath}")), Opacity( opacity: _opacityTween.value, child: Container( color: Color.fromRGBO(128, 128, 128, 0.5), child: Row( mainAxisAlignment: MainAxisAlignment.center, mainAxisSize: MainAxisSize.max, children: [ Column( mainAxisSize: MainAxisSize.min, children: [ Text("${widget.postDetail}"),
                        Text("${widget.postTitle}")
                      ],
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

Widget mandiri berfungsi dengan baik tetapi ketika saya memasukkannya ke dalam tampilan grid atau tampilan halaman, secara otomatis membacanya mouse masuk ketika saya menggulir ke dalamnya.

Saya mencoba menggunakan widget lain seperti Inkwell, Listener, dan lainnya. Tidak ada solusi. Bisakah seseorang membimbing saya jika ada solusi yang lebih baik?

Bagaimana saya bisa memecahkan masalah ini?

edit:

Sekarang mengalami masalah ini. MouseRegion menyebabkan banyak controller.forwards

Answer 1

Saya Diciptakan Contoh ... silahkan Coba ini,

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

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Todos',
      theme: new ThemeData(primarySwatch: Colors.deepOrange),
      home: MyHome(),
    );
  }
}

class MyHome extends StatelessWidget{
  @override
  Widget build(BuildContext context) {
    return GridView.count(crossAxisCount: 3,
    children: List.generate(10, (index) {
      return OverlayAnimatedGridElement("https://picsum.photos/300/200");
        }
    ));
  }

}


class OverlayAnimatedGridElement extends StatefulWidget {
  OverlayAnimatedGridElement(this.imagepath);
  final String imagepath;
//  final String postTitle;
//  final String postDetail;

  @override
  _OverlayAnimatedGridElementState createState() =>
      _OverlayAnimatedGridElementState();
}

class _OverlayAnimatedGridElementState extends State<OverlayAnimatedGridElement>
    with TickerProviderStateMixin {
  bool isHovered = false;

  @override
  void initState() {
    super.initState();
  }

  hoverActivation(hoverState) {
    setState(() {
      isHovered = hoverState;
    });
    print("activated" + hoverState.toString());
  }

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Container(
        color: Colors.red,
        height: 200,
        width: 300,
        child: Stack(
          children: [
            Image.network(widget.imagepath),
            MouseRegion(
              onEnter: (event){
                hoverActivation(true);
              },
              onExit: (event){
                hoverActivation(false);
              },
              child: AnimatedContainer(
                duration: Duration(milliseconds: 200),
                color: Colors.black.withOpacity(isHovered ? 0.5 : 0),
              ),
            )
          ],
        ),
      ),
    );
  }
}

Answer 2

Saya memecahkan masalah kedua saya dengan hanya memindahkan metode addListener ke initState. Sebelumnya itu di dalam widget itu sendiri yang menyebabkan penambahan pendengar di setiap pembangunan kembali dan menyebabkan beberapa pembangunan kembali untuk setiap pendengar, saya rasa.