Not working on Overlay

[pishguy]

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

class HiveTubeSliverAppBar extends StatefulWidget {
  final Function _onTap;

  const HiveTubeSliverAppBar({@required Function onTap}) : _onTap = onTap;

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

class _HiveTubeSliverAppBarState extends State<HiveTubeSliverAppBar> with TickerProviderStateMixin {
  AnimationController _animationController;
  Animation<double> _animation;

  AnimationController _circularAnimationController;
  Animation<double> _circularAnimation;

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

    _animationController = AnimationController(vsync: this, duration: const Duration(milliseconds: 250));
    _animation = Tween<double>(begin: 0.0, end: 1.0).animate(_animationController);

    _circularAnimationController = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 1000),
    );
    _circularAnimation = CurvedAnimation(
      parent: _circularAnimationController,
      curve: Curves.easeIn,
    );
  }

  @override
  Widget build(BuildContext context) {
    return SliverPersistentHeader(
      pinned: false,
      floating: true,
      delegate: CustomAutoHideAppBarDelegate(
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 12.0),
          child: Row(
            children: <Widget>[

              IconButton(icon: const Icon(Icons.more_vert_rounded), onPressed: () => _showOverlayHomeMenu(context, _animationController,_circularAnimation))

            ],
          ),
        ),
      ),
    );
  }

  Future<void> _showOverlayHomeMenu(BuildContext context, AnimationController animationController, Animation<double> circularAnimation) async {
    final OverlayState _overlayState = Overlay.of(context);
    final OverlayEntry _overlayEntry = OverlayEntry(builder: (context) {
      return CircularRevealAnimation(
        animation: circularAnimation,
        centerOffset: const Offset(10, 10),
        child: Positioned(
          top: kToolbarHeight - 20,
          right: 20.0,
          child: Opacity(
              opacity: _animationController.value,
              child: Card(
                elevation: 8.0,
                shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8.0)),
                color: const Color(0xFF32313C),
                child: Container(
                  width: 200.0,
                  height: 250.0,
                  child: const ListTile(
                    title: Text(
                      'aaaaaaa',
                      style: TextStyle(color: Colors.white),
                    ),
                    leading: Icon(
                      Icons.assessment,
                      color: Colors.white,
                    ),
                  ),
                ),
              ),
            ),
        ),
      );
    });

    _animationController.addListener(() {
      _overlayState.setState(() {});
    });

    _overlayState.insert(_overlayEntry);
    _animationController.forward();
    await Future.delayed(const Duration(milliseconds: 3500));
    _animationController.reverse();

    _overlayEntry.remove();
  }
}

[qwert2603]

Hello! Any description and expected/actual behavior would be useful.

[pishguy]

@qwert2603 simply when i try to use then library Animation, Overlay doesn't work

[qwert2603]

@MahdiPishguy sorry for late response. I looked throug your code and found some subtle bug in circularAnimation usage.

circularAnimation is backed by _circularAnimationController, but in method _showOverlayHomeMenu another controller (_animationController) is used.

It will work fine, if _circularAnimationController.forward() will be called together with _animationController.forward();.