Flutter Web image hover zoom(實現圖片懸浮縮放)

Implement Picture zoom when hover the image.

How to implement it?

Using AnimatedContainer to do animation and using InkWell to detect hover.

In InkWell:

InkWell(
        onTap: () {
          print('Tap');
        },
        // Detect hover here
        onHover: (val) {
          setState(() {
            isHover = val;
            print(val);
          });
        },
        child: //Child
)

In AnimatedContainer:

AnimatedContainer(
            transform: isHover ? hoverdTransform : unhoverdTransform,
            // duraction time
            duration: const Duration(seconds: 10),
            curve: Curves.ease,
            child: Image.network(
              imageUrl,
              fit: BoxFit.cover,
              height: 200,
            ),
          ),

Full Code:

import 'dart:convert';
import 'dart:io';

import 'package:flutter/material.dart';

void main() {
  runApp(
    MaterialApp(
      home: Home(),
    ),
  );
}

class Home extends StatefulWidget {
  @override
  _HomeState createState() => _HomeState();
}

class _HomeState extends State<Home> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: ZoomAnimate(),
    );
  }
}

class ZoomAnimate extends StatefulWidget {
  const ZoomAnimate({Key? key}) : super(key: key);

  @override
  State<ZoomAnimate> createState() => _ZoomAnimateState();
}

class _ZoomAnimateState extends State<ZoomAnimate> {
  bool isHover = false;
  String imageUrl =
      "https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Ash_Tree_-_geograph.org.uk_-_590710.jpg/220px-Ash_Tree_-_geograph.org.uk_-_590710.jpg";

  @override
  Widget build(BuildContext context) {
    final hoverdTransform = Matrix4.identity()..scale(1.2);
    final unhoverdTransform = Matrix4.identity()..scale(1);
    return Padding(
      padding: const EdgeInsets.all(8.0),
      child: InkWell(
        onTap: () {
          print('Tap');
        },
        onHover: (val) {
          setState(() {
            isHover = val;
            print(val);
          });
        },
        child: ClipRRect(
          borderRadius: BorderRadius.circular(8.0),
          child: AnimatedContainer(
            transform: isHover ? hoverdTransform : unhoverdTransform,
            duration: const Duration(seconds: 10),
            curve: Curves.ease,
            child: Image.network(
              imageUrl,
              fit: BoxFit.cover,
              height: 200,
            ),
          ),
        ),
      ),
    );
  }
}

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