Unable to load asset storage emulated 0 Android data com example projectdesign app files null

0 votes

how to access file path for the image in the app, lets say i upload the image to the app, and want to use same image for editing, it get this error, how to solve it? this is my code after selecting an image from camera or gallery, i declared two var for display and one for supposed to edit image

ElevatedButton(
               onPressed:  ()async {
               // call dialog and get value "camera" or "galery"
               final type = await  _settingModalBottomSheet(context);
               if(type != null){
               // call image pikcer
              final pickedFile = await _openImagePicker(type);
                if(pickedFile !=null){ 
                  final directory = (await getExternalStorageDirectory())!.path;
                 await Directory('$directory/$_image').create(recursive: true);
                 final fullPath =
                 '$directory/$_image/${DateTime.now().millisecondsSinceEpoch}.png';
                  
                   // set here
                   setState(()
                     {
                      _image = pickedFile;  
                      
                      // Uint8List bytes = pickedFile.readAsBytesSync();
                      //  var simage = ImageProvider;
                      //     image= simage; 
                      // List<int> imageBase64 = _image!.readAsBytesSync();
                      // String imageAsString = base64Encode(imageBase64);
                      // Uint8List uint8list = base64.decode(imageAsString);
                      // image = Image.memory(uint8list);   

                      
                      image = fullPath;
                     });
                 }
                }
              },
               child: const Text('Select An Image'),
               )

this is my code for edit paint image

class ImagePainterExample extends StatefulWidget {
  const ImagePainterExample({super.key, required this.image});
  final String? image;

  @override
  // ignore: library_private_types_in_public_api
  _ImagePainterExampleState createState() => _ImagePainterExampleState(image_1: image);
}

class _ImagePainterExampleState extends State<ImagePainterExample> {
  final _imageKey = GlobalKey<ImagePainterState>();
  final _key = GlobalKey<ScaffoldState>();
   _ImagePainterExampleState({required this.image_1});
   String? image_1;

    

  // void saveImage() async {
  //   final image = await _imageKey.currentState?.exportImage();
  //   final directory = (await getApplicationDocumentsDirectory()).path;
  //   await Directory('$directory/sample').create(recursive: true);
  //   final fullPath =
  //       '$directory/sample/${DateTime.now().millisecondsSinceEpoch}.png';
  //   final imgFile = File(fullPath);
  //   imgFile.writeAsBytesSync(image!);
  //   await GallerySaver.saveImage(fullPath, toDcim: true);
  //   // ignore: use_build_context_synchronously
  //   ScaffoldMessenger.of(context).showSnackBar(
  //     SnackBar(
  //       backgroundColor: Colors.grey[700],
  //       padding: const EdgeInsets.only(left: 10),
  //       content: Row(
  //         mainAxisAlignment: MainAxisAlignment.spaceBetween,
  //         children: [
  //           const Text("Image Exported successfully.",
  //               style: TextStyle(color: Colors.white)),
  //           TextButton(
  //             onPressed: () => OpenFile.open(fullPath),
  //             child: Text(
  //               "Open",
  //               style: TextStyle(
  //                 color: Colors.blue[200],
  //               ),
  //             ),
  //           )
  //         ],
  //       ),
  //     ),
  //   );
  // }


  @override
  Widget build(BuildContext context) {
    return Scaffold(
      key: _key,
      appBar: AppBar(
        title: const Text("Image Painter Example"),
        // actions: [
        //   IconButton(
        //     icon: const Icon(Icons.save_alt),
        //     onPressed: saveImage,
        //   )
        // ],
      ),
      body: ImagePainter.asset(
      image_1!,
        key: _imageKey,
        scalable: true,
        initialStrokeWidth: 2,
        initialColor: Colors.green,
        initialPaintMode: PaintMode.line,
        placeholderWidget: Text (image_1!),
      ),
    );
  }
  
 
  
  
}

how to solve this?

Apr 17, 2023 in Flutter by sarit
• 1,830 points
1,412 views

1 answer to this question.

0 votes

The error "Unable to load asset storage emulated 0 Android data com example projectdesign app files null" suggests that the file path you are trying to access is incorrect or the file does not exist. To solve this, you need to ensure that the file path is correct and that the file actually exists at that location.

answered Apr 17, 2023 by vinayak

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