Creare effetti sui widget in Flutter con Hyper Effects

Hyper Effects è un package che ci permette di creare degli effetti sui widget in Flutter.

Inoltre è compatibile con tutte le piattaforme.

Per installarlo:

flutter pub add hyper_effects

Qui sotto un primo esempio basico:

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

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Test',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Test'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return OpacityEffect(
      opacity: 1,
    ).apply(
      context,
      BlurEffect(
        blur: 10,
      ).apply(
        context,
        ScaleEffect(
          scale: 0.5,
        ).apply(
          context,
          TranslateEffect(
            offset: const Offset(50, 0),
          ).apply(
            context,
            Container(
              color: Colors.amber,
            ),
          ),
        ),
      ),
    );
  }
}

Volendo possiamo applicare degli effetti sulle transizioni:

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

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Test',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Test'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  void initState() {
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
      itemBuilder: (context, index) {
        return Container(
          width: 350,
          height: 100,
          margin: const EdgeInsets.symmetric(
            horizontal: 16,
            vertical: 8,
          ),
          alignment: Alignment.center,
          decoration: BoxDecoration(
            color: Colors.amber,
            borderRadius: BorderRadius.circular(16),
          ),
          child: Text(
            'Item $index',
            style: const TextStyle(
              fontSize: 24,
              color: Colors.white,
            ),
          ),
        ).scrollTransition(
          (context, widget, event) => widget
              .blur(
                switch (event.phase) {
                  ScrollPhase.identity => 0,
                  ScrollPhase.topLeading => 10,
                  ScrollPhase.bottomTrailing => 10,
                },
              )
              .scale(
                switch (event.phase) {
                  ScrollPhase.identity => 1,
                  ScrollPhase.topLeading => 0.9,
                  ScrollPhase.bottomTrailing => 0.9,
                },
              ),
        );
      },
    );
  }
}

Enjoy!