[enhancement] Improve the UX of Manage folders screen

[tuancoltech]

Improve the UX of Manage folders screen by:

• Show the Add button when scrolling up.
• Hide the Add button when scrolling down.
• Keep the Add button shown when being at the top of the list.

https://github.com/ARK-Builders/ARK-Navigator/issues/400

Result:

https://recordit.co/LtrZAge39x

[tuancoltech]

If list is not full screen, scroll hides fab forever

Screenshot

@mdrlzy Thanks, that's a good catch. I just changed the solution to a simpler strategy: Increase the list bottom padding. Please re-review.

[hieuwu]

So far so good. Could you please spend a bit more time on trying other solution for this improvement? Adding padding at the bottom might reduce our space and lead to a big empty space in our screen. Just found this article to handle fab effect. Please give it a try.

https://www.geeksforgeeks.org/auto-hide-or-auto-extend-floating-action-button-in-recyclerview-in-android/

[tuancoltech]

So far so good. Could you please spend a bit more time on trying other solution for this improvement? Adding padding at the bottom might reduce our space and lead to a big empty space in our screen. Just found this article to handle fab effect. Please give it a try.

https://www.geeksforgeeks.org/auto-hide-or-auto-extend-floating-action-button-in-recyclerview-in-android/

@hieuwu That's a nice approach. I've changed the code to make it work in such mentioned way. Please review.

[sonarcloud[bot]]

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