Question 74784 in Flutter Question posted in
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LateInitializationError: Field 'imageFile' has not been initialized – Flutter

I am working on an application where I capture images from a camera initialized and navigate to the next page. I am writing a method named captureImage and calling it in floatingactionbutton. Below is the code—

void _captureImage() async {
if (_cameraController != null && 
_cameraController.value.isInitialized) 
{
try {
  final image = await _cameraController.takePicture();
  if (image != null) {
    setState(() {
      _image = image;
      Navigator.push(
        context,
        MaterialPageRoute(
          builder: (context) => Verify(image: _image),
        ),
      );
    });
  }
} catch (e) {
  // handle the error here, e.g. print an error message
  print('Error capturing image: $e');
}
} else {
print("Camera not initialized.");
}
}

I have tried initializing

on the second screen i have used image to display in container.
below is that code—

this is how i initialized—

late File image;

child: Container(
width: 140,
height: 180,
child: Image.file(image),
 ),

error shows in this line.

Tags:

3

Answers


  1. 0

    You can initialize your variable like this if you are planning to assign it later

    File? imageFile

    OR

    late File imageFile
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  2. 0

    You dont need to recreate another variable, use the previous one you’ve defined.

     XFile? _imageFile;
  
  void _captureImage() async {
    if (!_cameraController.value.isInitialized) {
      return;
    }
    _imageFile = await _cameraController.takePicture();
    print(_imageFile?.path);
    setState(() {
      if (_imageFile != null) {

        //if you like to convert it to File
        File file = File(_imageFile!.path);
        ....
      }
    });
  }
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  3. 0

    Have you iniinitialized the camera controller?

    _cameraController = CameraController(cameras[0], ResolutionPreset.high);    
_cameraController.initialize();
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