The method 'add' was called on null while getting image from image picker

Question

I am getting the image by image picker and then adding the file to the list of file but it shows the error-The method 'add' was called on null.. My code:-

final picker=ImagePicker();    
selectImageFromGallery() async
      {
        setState(() {
          inProcess=true;
        });
        final imageFile= await picker.getImage(source: ImageSource.gallery);
        if(imageFile!=null)
          {
            File _image=File(imageFile.path);
            files.add(_image);
          }
        setState(() {
          inProcess=false;
        });
      }

If you're programming you should atleast know that you should instantiate your variables... — Stijn2210, Feb 24 '21 at 14:21

score 1 · Accepted Answer · answered Feb 24 '21 at 13:29

1

It seems like files is a List<File> but it's not properly initialized.

You need to initialize it as an empty list, such as:

final files = <File>[];

so you can add files to it.

answered Feb 24 '21 at 13:29

osaxma

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oh man, thanks i was doing such a dumb mistake – Deepak Lohmod Feb 24 '21 at 13:31
@DeepakLohmod no problem. Please mark the answer as accepted if it solved your issue. – osaxma Feb 24 '21 at 13:31

The method 'add' was called on null while getting image from image picker

1 Answers1