/// Flutter code sample for FadeTransition

// The following code implements the [FadeTransition] using
// the Flutter logo:

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

void main() {
  AndroidGoogleMapsFlutter.useAndroidViewSurface = true;
  runApp(const MyApp());
}

/// This is the main application widget.
class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  static const String _title = 'Flutter Code Sample';

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: _title,
      home: MyStatefulWidget(),
    );
  }
}

/// This is the stateful widget that the main application instantiates.
class MyStatefulWidget extends StatefulWidget {
  const MyStatefulWidget({Key? key}) : super(key: key);

  @override
  State<MyStatefulWidget> createState() => _MyStatefulWidgetState();
}

/// This is the private State class that goes with MyStatefulWidget.
/// AnimationControllers can be created with `vsync: this` because of TickerProviderStateMixin.
class _MyStatefulWidgetState extends State<MyStatefulWidget> with TickerProviderStateMixin {
  late final AnimationController _controller = AnimationController(
    duration: const Duration(seconds: 2),
    vsync: this,
  )..repeat(reverse: true);
  late final Animation<double> _animation = CurvedAnimation(
    parent: _controller,
    curve: Curves.easeIn,
  );

  @override
  void dispose() {
    _controller.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return Container(
      color: Colors.white,
      child: FadeTransition(
        opacity: _animation,
        child: Padding(
          padding: EdgeInsets.all(8),
          child: SafeArea(
            child: Column(
              children: [
                FlutterLogo(
                  size: 128,
                ),
                Expanded(
                  child: GoogleMap(
                    initialCameraPosition: CameraPosition(
                      target: LatLng(37.3861, 122.0839),
                    ),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}