Animate tab indicator

[mozzius]

Screen.Recording.2024-06-14.at.21.19.12.mov

[render]

Your Render PR Server URL is https://social-app-pr-4524.onrender.com.

Follow its progress at https://dashboard.render.com/web/srv-cpmacohu0jms73fpigq0.

[github-actions]

Old size	New size	Diff
7.42 MB	7.43 MB	1.12 KB (0.01%)

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[AronBe]

Hi, I was thinking about adding animation to the indicator. Was there a reason this got closed? Would you like me to revisit this?

[mozzius]

Dan has a better PR that actually syncs it with the swipe gesture

#1696

However, perf is terrible on android. If you can figure out how to make perf not terrible, that'd be great!

[AronBe]

Hey, had a busy week at work, but got it working today 💪 will create a PR tomorrow 👍

[gaearon]

@AronBe, sorry I didn't see this thread — I've already done the work in #6868. Happy to look over your implementation though in case there's something I can improve.

[AronBe]

Sure, will tag you tomorrow 👍

[AronBe]

created my PR at the end :) #6873

I reviewed your approach @gaearon, you found the right one, similar to mine, so end result will be the same, good job! You can take inspiration from mine to add animated indicator to web as well, it is just one extra useEffect.