PencilDrawerForSwiftUI is a Swift package that provides a SwiftUI view to let users draw in your SwiftUI app without going through the complicated PencilKit APIs and using the simple binding system of the SwiftUI framework.
The PencilKit APIs store pencil drawings as plain binary data, represented in Swift by the Data type. All you need to do is to define a Data binded variable and pass it to the DrawingView view as it follows:
struct UsageExample: View {
@State private var drawing: Data = Data()
var body: some View {
DrawingView(drawingData: $drawing, drawingPolicy: .anyInput, drawingChanged: { updatedData in
// Handle changes in the drawing
// ...
})
}
}The changes to the data will be reflected in the canvas, and updates from the canvas will be synchronized with the data thanks to the SwiftUI binding system.
As you can see, you can also choose the drawing policy between:
default: the default input type to use for drawing on a canvas.anyInput: allows drawing on the canvas from any input source.pencilOnly: pencil touches are the only input that draw on the canvas.
Required:
- iOS 15.0 or above
- Xcode 13.0 or above
In Xcode go to File -> Swift Packages -> Add Package Dependency and paste in the repo's url: https://github.com/alessiorubicini/PencilDrawerForSwiftUI.
Then choose the main branch or the version you desire.
Copyright 2023 (©) Alessio Rubicini.
The license for this repository is MIT License.
Please see the LICENSE file for full reference.