Nik Clayton 79ee2dc32c
Fix image zoom / pan / scroll / swipe (#3894)
Migrate to touchimageview from photoview, and adjust the touch logic to correctly handle single finger drag, two finger pinch/stretch, flings, taps, and swipes.

As before, the features are:

- Single tap, show/hide controls and media description
- Double tap, zoom in/out
- Single finger drag up/down, scale/translate image, dismiss if scrolled too far
- Single finger drag left/right
  - When not zoomed, swipe to next image if multiple images present
- When zoomed, scroll to edge of image, then to next image if multiple images present
- Two finger pinch/zoom, zoom in/out on the image

Behaviour differences to previous code

1. Bug fix: The image can't get "stuck" when zoomed, and impossible to scroll
2. Bug fix: Pinching is not mis-interpreted as a fling, closing the image
3. Bug fix: The zoom state of images is not lost or misinterpreted when the user swipes through multiple images
4. Bug fix: Double-tap zooms all the way, instead of stopping
5. Tapping outside the image does not dismiss it, controls and description show/hide

Fixes https://github.com/tuskyapp/Tusky/issues/3562, https://github.com/tuskyapp/Tusky/issues/2297
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Tusky

Tusky is a beautiful Android client for Mastodon. Mastodon is an ActivityPub federated social network. That means no single entity controls the whole network, rather, like e-mail, volunteers and organisations operate their own independent servers, users from which can all interact with each other seamlessly.

Get it on F-Droid Get it on Google Play

Features

  • Material Design
  • Most Mastodon APIs implemented
  • Multi-Account support
  • Dark, light and black themes with the possibility to auto-switch based on the time of day
  • Drafts - compose posts and save them for later
  • Choose between different emoji styles
  • Optimized for all screen sizes
  • Completely open-source - no non-free dependencies like Google services

Testing

The nightly build containing the newest development code is available on Google Play.

Support

Check out our FAQs, your question may already be answered. If you have any bug reports, feature requests or questions please open an issue or send us a message at Tusky@mastodon.social!

Contributing

We always welcome new contributors! Please read our contribution guide to get started.

Development chatroom

https://riot.im/app/#/room/#Tusky:matrix.org

Description
Tusky è un client Android per Mastodon. Mastodon è un social network federato ActivityPub. Ciò significa che nessuna singola entità controlla l'intera rete, piuttosto, come la posta elettronica, i volontari e le organizzazioni gestiscono i propri server.
https://mastodon.it/it/app-mastodon-per-android
Readme 105 MiB
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Java 9.5%