Flutter: The getter 'image' was called on null

Question

I'm retrieving images from API:

  base64FormatImage = base64FormatImage.toString();
  base64FormatImage = base64FormatImage.replaceAll('data:image/jpeg;base64,', '');
  base64FormatImage = base64FormatImage.replaceAll('}', '');
  base64FormatImage = base64FormatImage.replaceAll('data:image/jpegbase64,', '');
  courseImage = imageFromBase64String(base64FormatImage);

Images are getting retrieved, but the screen shows "The getter 'image' was called on null" for about a second or two and after a second or two, the screen shows the proper image.

Why does this happen? Why is it taking some time?

Yes, in the API function definition, I'm setting the courseImage variable in the setState method itself — Pankaj, Nov 27 '20 at 13:18
Does this answer your question? [What is a NoSuchMethod error and how do I fix it?](https://stackoverflow.com/questions/64049102/what-is-a-nosuchmethod-error-and-how-do-i-fix-it) — Christopher Moore, Dec 14 '20 at 15:18

score 1 · Accepted Answer · answered Nov 27 '20 at 13:18

1

You can check your courseImage before using it.

   courseImage == null ?
      Container() :
      CircleAvatar(backgroundImage: courseImage.image)

answered Nov 27 '20 at 13:18

Akif

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Flutter: The getter 'image' was called on null

1 Answers1