Fix SwiftUI RedditFilter button + Other Improvements

[NicholasBly]

This PR restores access to the RedditFilter settings menu on newer app versions (SwiftUI) and implements significant performance and logic fixes. Currently tested on latest Reddit app build 2026.06 with .ipa build available in my Releases tab.

Changes

Restored Settings UI Access to RedditFilter UI

Replaced the hook for the removed AppSettingsViewController with a UIViewController hook that detects the new SwiftUI Settings page (RedditSliceKit).

Performance Optimizations

Caching: Implemented NSCache for iconWithName and localizedString to eliminate expensive bundle iteration on every cell render, improving scrolling performance.

Filter Logic: optimized shouldFilterObject to check NSUserDefaults before performing expensive class introspection. If a filter is disabled, the tweak now skips that type entirely.

Bug Fixes

Initialization: Fixed a copy-paste error in %ctor where default settings for Recommended, NSFW, and Awards were incorrectly checking the kRedditFilterPromoted key.

Memory Leak: Added a check in ToggleImageTableViewCell to ensure constraints are only added once per reuse cycle, preventing a memory leak and layout warnings.

Safety: Added error handling for NSJSONSerialization in the network hook to prevent potential crashes.

[dwojc6]

Not sure if something is different on my end but the descriptions in my settings page for the tweak are all blank

[NicholasBly]

Not sure if something is different on my end but the descriptions in my settings page for the tweak are all blank

Looks like missing localizable strings. If you injected the dylib using sideloadly or similar that can happen. Need to buildthe ipa directly with GitHub actions or locally.

It's working for me with the built ipa in releases and installing with Signulous.

[dwojc6]

Not sure if something is different on my end but the descriptions in my settings page for the tweak are all blank

Looks like missing localizable strings. If you injected the dylib using sideloadly or similar that can happen. Need to buildthe ipa directly with GitHub actions or locally.

It's working for me with the built ipa in releases and installing with Signulous.

Gotcha, I built your fork with theos and injected the deb so that could be why

[NicholasBly]

@dwojc6 I implemented your pull request for the localizable strings fix and released 1.1.9 on my own fork which adds significant filtering optimizations.

I have been developing a youtube LG webOS app which also uses JSON filtering and have adopted fast path filtering here along with several optimizations. From my testing the app loads a lot quicker and page switching also loads nearly instantly.

One bug I had with 1.1.8 and earlier was that sometimes the scrolling with suddenly stop as if there's no more posts to load. From testing I haven't run into this yet and don't know what causes it but needs more testing if its a Reddit issue or a tweak issue.

I'm also thinking about adding a Muted Word feature to the list of available filter settings.