Recreating thumbnail with new image

[carekb684]

Hello!

Thanks for this plugin.

I seem to be having a problem, here is the workflow:

1.Thumbnail gets created with "_image":
Thumbnail(
dataResolver: () async {
return _image.readAsBytes();
},
mimeType: "image/" + _image.extension,
widgetSize: double.infinity,
)

2. _image is changed to another image and setState is called and the thumbnail should be recreated.

I have a breakpoint when debugging on the line "return _image.readAsBytes();" and it is run on step 1, but after setState is called the thumbnail code is rerun, but never the line "return _image.readAsBytes();" and consequently, the image is not updated.

Perhaps i am missing something and there is no issue with the plugin.

Help appreciated.

[MartinHlavna]

Hello,

this is currently not supported for performance reasons.

One possible workound would be to provide widget with Key and change it after changing the _image variable. This way it should force flutter to recreate the widget state and load new thumbnail.

We have no plans to add support for updating the thumbnail at the moment but we would be happy to merge well written PR.

[doruchidean]

@carekb684 did u try imageCache.clear(); just before showing the new image?

[dharambudh1]

I can understand your concern, you're facing thumbnail re-rendering issue. So, this is my code & it is working as expected. I solved it by providing a "Key" with value of it's path. If in-case it won't work for you try - key: UniqueKey(), at line no. 211.