Fix typo in ProgressCallback doc comment

[tp]

This merge request fixes / refers to the following issues:

Small typo in the doc comment for ProgressCallback.

[AlexV525]

Hi @tp, can you explain the reason why it should be sending? IMO the callback will be only called when the corresponding data started to receive.

[tp]

Hi @tp, can you explain the reason why it should be sending? IMO the callback will be only called when the corresponding data started to receive.

Hey @AlexV525, the same callback definition is used for the sending (e.g. file upload) and response receiving progress:

source: https://pub.dev/documentation/dio/latest/dio/Dio/post.html

Thus the documentation lists the 2 distinct cases, the the value of total has a different meaning in each (outgoing vs. incoming bits).

[AlexV525]

Hi @tp. We've made our repo public and published a new version of dio, named diox.
The new package contains the PR of the fix.
Please refer to https://pub.dev/packages/diox/versions/5.0.0-dev.1 to use the fork.
You can also see why we're working for a hardfork at cfug/diox#29 and #1607.