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How to limit the vertical space that the user can drag an element in, using react-native-gesture-handler?

reidterror profile image reidterror ・1 min read

I'm trying to build a sliding menu from the bottom of the screen. The main problem I'm facing is setting a limit to how far up the user can drag the menu.

I've looked through examples on the react-native-gesture-handler github. Tried to fiddle around with the bouncing example. But still couldn't figure out exactly what I need to do to set a limit.

Current Setup. (Snack Link)

which gives this result:

Collapsed menu

when i swipe up i get:

Expanded menu, but out of bounds

and when i swipe all the way down, the menu goes out of view:

Collapsed menu, but out of bounds

My goal is to make the menu to pop up to It's full size once swiped up and then shrink back down to just the title when swiped down.

Swiping up should end up like this: Expected result when swiping up

Swiping down should end up like this: Expected result when swiping down

Thank you in advance for any help you might provide, it'll be really appreciated.

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Discussion

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But you want when the user drags down and is lower than the title height, return to your valid previous site? and same to up site?

 

Yes, i'd like a threshold where the user swipes up or down and the menu either fully expands or collapses. I've looked through the examples once again and I've found this horizontal draggable drawer example which is sort of what I'm looking for but from the bottom.