final.dart

import 'dart:io';
import 'dart:ui' as ui;
import 'package:flutter/material.dart';
import 'package:image_crop_widget/image_crop_widget.dart';

class FinalImagePage extends StatefulWidget {
  final File image;
  FinalImagePage(this.image);

  @override
  State<StatefulWidget> createState() {
    return _FinalImageState();
  }
}

class _FinalImageState extends State<FinalImagePage> {
  final key = GlobalKey<ImageCropState>();


  void _onCropPress() async {
    final croppedImage = await key.currentState.cropImage();

    showModalBottomSheet(
      context: context,
      builder: (context) => RawImage(
        image: croppedImage,
        fit: BoxFit.contain,
        height: croppedImage.height.toDouble(),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Stack(
      children: <Widget>[
        ImageCrop(key: key,image: here wants ui.Image,),
        AppBar(
          backgroundColor: Colors.transparent,
          actions: <Widget>[
            FlatButton(
              child: Text("Crop"),
              onPressed: _onCropPress,
            ),
          ],
        ),
      ],
    );
  }
}