ryohey/zoomable

A SwiftUI view modifier that provides pinch to zoom, double tap to zoom, and drag to pan functionalities for iOS ad iPadOS apps.

Features

Pinch to zoom
Double tap to zoom in and out
Drag to pan

Installation

Swift Package Manager

Please add the following URL in the Package Dependencies screen in Xcode.

https://github.com/ryohey/Zoomable.git

Usage

To use the Zoomable modifier in your SwiftUI view:

import Zoomable

struct ContentView: View {
    var body: some View {
        Image("your-image-name")
            .zoomable()

        /*
        or
        SomeView()
            .zoomable(
                minZoomScale: 0.5,        // Default value: 1
                doubleTapZoomScale: 2,    // Default value: 3
                outOfBoundsColor: .black  // Default value: .clear
            )
        */
    }
}

Requirements

iOS 16.0 or later
MacOS 14.0 or later
SwiftUI

Caveats

iOS 16: Due to limitations with MagnificationGesture, during pinch-in actions, the zoom location is fixed to the top-left corner.
iOS 17 and later: This issue has been addressed and improved with the introduction of MagnifyGesture.

Contribution

Contributions are welcome! Please open an issue or submit a pull request.

License

MIT License

Package Metadata

Repository: ryohey/zoomable

Default branch: main

README: README.md