noppefoxwolf / MergeableView

What is MergeableView?

MergeableView is a SwiftUI package that adds interactive merge gestures to your app's interface. Think of it as the interaction pattern behind iOS emoji merging or Samsung's notes app: drag one token toward another, and they combine into a single element. The package wraps items in a shared "Liquid Glass" coordinate space and fires a callback with source and destination indices when a merge completes. You get three primitives to work with: `MergeableContainer` for the shared effect context, `.mergeableItem(id:)` to mark views as targets, and `.onMerge` to handle the result.

Why is it gaining traction?

This fills a specific gap in SwiftUI's toolkit. While Apple's framework gives you drag-and-drop for moving items between lists, there's no built-in way to handle the "sweep-to-merge" pattern that feels natural in mobile apps. The package uses geometry calculations to track the drag vector and find the nearest valid target, so merges only fire when items are actually dragged toward each other. The implementation is clean and composes naturally with standard SwiftUI patterns like `ForEach`.

Who should use this?

App developers building interfaces with tokenized content: smart home rule builders, task management apps with tag merging, onboarding flows with selectable option chips, or any interface where users might want to combine items by dragging them together. It's also useful for creative apps that want the "Liquid Glass" visual effect as part of a merge interaction.

Verdict

At 31 stars with no community feedback or third-party adoption, this is an early-stage experiment rather than a battle-tested library. The code quality looks solid with good test coverage for the geometry logic, but the 1.0% credibility score reflects genuine uncertainty about long-term maintenance. If you're targeting iOS 26 and need this specific interaction pattern, it works today; just treat it as a custom implementation you're prepared to maintain or fork if needed.