fix(share_plus): export XFile

[werainkhatri]

Description

• moved SharePlatform to platform_interface/share_plus_platform.
• exported cross_file and share_plus_platform in share_plus_platform_interface.dart file (inspiration).
• exported (by export ... show ...;) XFile in share_plus package (inspiration).
• hid XFile from file_selector and image_picker in example/lib/main.dart so that this export is tested.

wild ideas, not to be taken too seriously:

1. should the folders in share_plus_platform_interface/lib be moved to src (same as image_picker)?
2. Should SharePlatform be renamed to SharePlusPlatform?

Related Issues

Fixes #1271

Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I titled the PR using Conventional Commits.
• I did not modify the CHANGELOG.md nor the pubspec.yaml files.
• All existing and new tests are passing.
• The analyzer (flutter analyze) does not report any problems on my PR.

Breaking Change

Does your PR require plugin users to manually update their apps to accommodate your change?

• Yes, this is a breaking change (please indicate that with a ! in the title as explained in Conventional Commits).
• No, this is not a breaking change.

[miquelbeltran]

LGTM

[SirusCodes]

@miquelbeltran when this will be published?

[miquelbeltran]

We don't have yet a fixed release schedule, but probably during the coming days

[SirusCodes]

Ok can you give an ETA as it is blocking #1070 since published version is not exporting XFile

Should I make a draft PR by depending using path?

[miquelbeltran]

You can do a draft PR sure, but I am not sure why you need this released to implement another change. Development should always reference the local libraries and not the ones on pub.dev if you do a proper development setup using melos. So you don't even need to add the dependency by path because your pubspec lock already references it.

[SirusCodes]

if you do a proper development setup using melos. So you don't even need to add the dependency by path because your pubspec lock already references it.

I have never used melos. Will try to configure it. Thanks👍

[miquelbeltran]

I have never used melos. Will try to configure it. Thanks+1

It is on the Contributors guide, you need it to bootstrap the repo.

Please read the contributors guide carefully and follow it.