[camera] iOS photos do not have full exif data

[mklim]

In Android, I receive all Exif data for the captured photo via both Camera plugin (0.5.3+1) and Image_Picker plugin (0.6.0+17) but on iOS I receive full Exif data only from Image_Picker plugin, not the Camera plugin.
Based on what you mentioned above, I know that the reason why we still receive the orientation data is related to your fix PR which has already merged.
What I really need is the full Exif data not only the orientation. Fortunately, my app's deploy target is iOS 11+ so I'm happy to use the new callback you mentioned above.
Is there any sample code related to that in Objective-C to be able to replace it with the current approach in the Camera plugin?
Is there any roadmap for fixing the issue to have full Exit data on iOS as well?

Originally posted by @iNima in #16587 (comment)

To implement the above we'd likely need to limit support to iOS 11, or only do this in iOS 11.

[mvanbeusekom]

Just adding some more details to this issue regarding the mentioned callbacks on iOS:

• captureOutput:didFinishProcessingPhotoSampleBuffer: the callback currently used by the camera plugin and deprecated since iOS 11+. The iOS documentation can be found here;
• captureOutput:didFinishProcessingPhoto: the new callback available on iOS 11+, includes the photo meta data (EXIF) but not supported by the camera plugin as of yet. The iOS documentation for this method can be found here.

[mvanbeusekom]

Added the didFinishProcessingPhoto callback in PR flutter/plugins#3337 which will make sure EXIF data is stored on iOS 11.0 and higher.

For previous versions of iOS the orientation is still determined using the accelerometer sensors.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.