this post was submitted on 31 Aug 2023
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Jerboa

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Jerboa is a native-android client for Lemmy, built using the native android framework, Jetpack Compose.

Warning: You can submit issues, but between Lemmy and lemmy-ui, I probably won't have too much time to work on them. Learn jetpack compose like I did if you want to help make this app better.

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Jerboa is made by Lemmy's developers, and is free, open-source software, meaning no advertising, monetizing, or venture capital, ever. Your donations directly support full-time development of the project.

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Improvement - Zooming images is difficult (lemm.ee)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
25 comments fedilink hide all child comments
 

Pinching the screen (especially with single hand) doesn't reliably zoom images and I have to try multiple times to get it to work

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[–] [email protected] 2 points 1 year ago (21 children)

Are you sure this is not an issue with your phone? I can zoom just fine on Jerboa

[–] [email protected] 12 points 1 year ago* (last edited 1 year ago) (20 children)

Nope, I have the same issue, but I have narrowed down the exact behavior.

If you put 2 fingers on the screen in a fullscreen image and slide them even the tiniest millimeter it will go into "pan mode" or so instead of zooming mode. You can no longer zoom until you release your fingers and place them without moving them at all before you pinch to zoom. (I have this happen much more often in practice while using the phone 1 handed on an unstable environment like a tram or train.

Interestingly, you can pan and zoom at the same time if already zoomed in, but on a full image where panning doesn't do anything, it will lock both actions until you release your fingers.

[–] testAccount 1 points 1 year ago (2 children)

Could you test if you can still reproduce it in these builds?

I have modified some code to isolate the problem.

Release version of 46

Depending on how you installed it might not allow you to install this release version

Note replacing an existing install with this version, will probably delete your app info (it should tell you) use debug version instead if that is not wanted app-release_zoomable.zip

Debug version of 46 app-debug_zoomable.zip

[–] [email protected] 1 points 1 year ago (1 children)

This does fix the issue for me

[–] testAccount 2 points 1 year ago (1 children)

Can you also test if the problem is still fixed with this build and that the flick to exit works in the ImageViewer

https://github.com/dessalines/jerboa/files/12618555/fix_zooming_jerboa_debug.zip

[–] [email protected] 1 points 1 year ago

It's not, as soon as the image moves vertically I can't zoom in anymore and it is easy to accidentally make it move before pinching. I think the image shouldn't respond to vertical swipes with two fingers at all and should have a small dead zone for single finger swipes. That's how WhatsApp seems to do it

Also the black background takes too long to disappear after a flick, it could be nicer if it faded away

[–] [email protected] 1 points 1 year ago* (last edited 1 year ago) (1 children)

There is a release 46 on f-droid. This does not fix the issue (tested on a few photos including this https://i.redd.it/mm6682q8tgmb1.jpg and this https://i.imgur.com/XRKZAhR.jpeg)

Perhaps it is an issue with embedding from reddit images?

If you still want me to, I cab probably install the debug version and attempt further debugging.

[–] testAccount 3 points 1 year ago

The release on Fdroid does not contain these experimental changes.

Only the above builds

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