flutter/dev/benchmarks/macrobenchmarks/lib/src/animated_image.dart

// Copyright 2014 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import 'package:flutter/material.dart';

class AnimatedImagePage extends StatelessWidget {
  const AnimatedImagePage({Key? key, this.onFrame}) : super(key: key);

  final ValueChanged<int>? onFrame;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Animated Image'),
      ),
      body: Image.asset(
        'animated_images/animated_flutter_lgtm.gif',
        package: 'flutter_gallery_assets',
        frameBuilder: (BuildContext context, Widget child, int? frame, bool syncCall) {
          if (onFrame != null && frame != null) {
            onFrame?.call(frame);
          }
          return child;
        },
      ),
    );
  }
}