Chewie, video_player >0.9 ans iOS

Hello.

I've discover an incompability between Chewie (last version) and video_player (version upper to 0.9) that affect iOS only
(All work great on Android)

Here is an extract of my code

```
void initState() {
super.initState();
_controller = VideoPlayerController.network(_url)
..initialize().then((_) {
setState(() {
_stackViewIndex = 0;
_controller.play();
});
});

_chewieController = ChewieController(
videoPlayerController: _controller,
aspectRatio: 16.0 / 9.0,
allowedScreenSleep: false,
autoPlay: true,
autoInitialize : true,
allowFullScreen : true,
looping: true,
);
}

```

With this code, the video player show only the first frame, but can't launch the video.

If i remove the lines
```
..initialize().then((_) {
setState(() {
_stackViewIndex = 0;
_controller.play();
});
});
```

All work great....

Do you have any idea on how to solve this.

Thank you