onFinishedLoading image custom callback function

[anass-naoushi]

🚀 Feature Requests

The title speaks for itself

[renefloor]

Hmm not really. What do you want and why?

[rohankandwal]

Hmm not really. What do you want and why?

When we need any specific functionality to perform post image load. Eg - https://stackoverflow.com/questions/44665955/how-do-i-determine-the-width-and-height-of-an-image-in-flutter

[foreverGoUp]

yeah!I Hope you can add this callback.because I need show a button after the image loaded in ad page. @renefloor

[mark8044]

Agree, this functionality will become more and more vital as more people use this.

I too need to get image dimensions as well as change the state of app when an image loads.

Much thanks if this can become reality

[eerbee]

any work around?

[MilosKarakas]

For context: I'm using regular Image widget and providing the image for it with CachedNetworkimageProvider. I pulled the provider into a variable and then added an ImageStreamListener to it. The ImageStreamListener has an onImage callback which gives you the ImageInfo object with original dimensions of the loaded image.

Example:

late CachedNetworkImageProvider provider;

  @override
  void initState() {
    super.initState();
    provider = CachedNetworkImageProvider(imageUrl);
    provider.resolve(const ImageConfiguration()).addListener(ImageStreamListener((image, __) {
      print('Image is $image');
    }));
  }