Fix: Bump min Android SDK version

[navaronbracke]

This PR updates the minimum Android SDK version to 21, to align with the current minimum on Flutter 3.22.

It also updates the compile & target SDK versions to 34 and fixes a versioning issue for win32.

In a follow-up PR, I will also migrate the plugin to Gradle 8.

Fix was tested by compiling and running the example app on an Android 14 device.

Fixes #1522
Fixes #1528
Fixes #1531

[Mik1337]

What's the progress on this ? This pr will solve a bug im facing !! :)

[navaronbracke]

I need to get a hold of a reviewer to get this approved first.

[navaronbracke]

cc @philenius Not sure if you could rubber stamp this one? Miguel seems to be busy at the moment.

[Mik1337]

As a temp fix, i updated the version number from my .pub-cache folder and it lets me build the project; the fix seems to work :)

I would love to just have it patched in the lib, so my team can use it without worrying to much; :)

[navaronbracke]

@Mik1337 I would advise against that, as a flutter clean will erase that change in your pub cache.

You could instead use a git dependency on this PR branch

[Mik1337]

yeah fair, that makes more sense;

[dkliss]

I am facing same issue on IOS, Android, MACOS..... For web it works...

[Shahidbangash]

I have tested this pr for IOS Build and it is working fine. issue #1531 is resolved

[philenius]

I can confirm that (with the changes of this pull request) the Linux implementation still works. Let me check on Windows and macOS.
Update: It works on Windows 11, too. Don't have time for macOS and your changes should not affect the macOS implementation. Good work, thank you @navaronbracke 🚀

[absar]

@philenius this is actually a breaking change it should not have been released by just bumping patch version to 6 e.g. 8.0.6, rather with major version e.g. 9.0.0. It's going to break many apps using dependabot. This package should follow Semantic Versioning https://semver.org like other packages and Flutter

[philenius]

@absar, thanks for letting me know. I'm aware of semver but I have no clue of Android. @navaronbracke, please keep this in mind for next time when changing the Android SDK!

[navaronbracke]

I am also aware of semver, but I was following the Flutter policy of only supporting current stable + 2 major Flutter releases before that. And SDK 19 (which was the previous minimum) has been unsupported since April 2023 by Google Play. So while this might have impacted semver, it probably isn't such a big deal in the first place.

See also https://android-developers.googleblog.com/2023/07/google-play-services-discontinuing-updates-for-kitkat.html