dart - Flutter camera appears stretched

Question

I've been playing around with flutter an i'm loving it so far, but I'm having an issue getting the camera working.

I follow the directions on this page https://pub.dartlang.org/packages/camera and it works. However, the camera is stretched so that it fits the phone screen, but the image is warped and taller than it should be. Other apps which use the camera seem to keep it in proportion, is there a way to ensure that it doesn't get stretched but still fills the screen?

Answer 1

Building upon the solution by lase, this works even when the aspect ratio of the device is different then the camera ratio:

final size = MediaQuery.of(context).size;
final deviceRatio = size.width / size.height;
return Transform.scale(
  scale: controller.value.aspectRatio / deviceRatio,
  child: Center(
    child: AspectRatio(
      aspectRatio: controller.value.aspectRatio,
      child: CameraPreview(controller),
    ),
  ),
);