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feat: ios: SwiftUI wrapper and test previews
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ios/Packages/PolkadotIdenticon/Sources/PolkadotIdenticon/Public/PolkadotIdenticonView.swift
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| // | ||
| // PolkadotIdenticonView.swift | ||
| // | ||
| // | ||
| // Created by Krzysztof Rodak on 02/08/2023. | ||
| // | ||
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| import SwiftUI | ||
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| /// `PolkadotIdenticonView` is a SwiftUI view that renders a Polkadot Identicon. | ||
| /// | ||
| /// An Identicon is a visual representation of a public key value, typically used to represent user identities in the | ||
| /// context of cryptographic applications. | ||
| /// This struct uses `PolkadotIdenticonGenerator` to generate a unique image, based on a provided public key input, | ||
| /// which can then be rendered within the SwiftUI view hierarchy. | ||
| public struct PolkadotIdenticonView: View { | ||
| private let identiconGenerator: PolkadotIdenticonGenerator = PolkadotIdenticonGenerator() | ||
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| /// The public key input based on which the Identicon is generated. | ||
| /// The public key can be in one of three formats: raw binary data (`Data`), a hexadecimal string, or a base58 | ||
| /// string. | ||
| let publicKey: PublicKey | ||
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| /// The size of the Identicon image to be generated. | ||
| let size: CGFloat | ||
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| /// Initializes a new instance of `PolkadotIdenticonView`. | ||
| /// | ||
| /// - Parameters: | ||
| /// - publicKey: The public key input based on which the Identicon is generated. This could be any unique public | ||
| /// key. | ||
| /// - size: The size of the Identicon image to be generated. | ||
| public init(publicKey: PublicKey, size: CGFloat) { | ||
| self.publicKey = publicKey | ||
| self.size = size | ||
| } | ||
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| /// Defines the content and behavior of this view. | ||
| /// | ||
| /// The body property returns an `Image` view if an Identicon image can be generated from the public key, | ||
| /// or an `EmptyView` if not. | ||
| public var body: some View { | ||
| if let identiconImage = createIdenticonImage() { | ||
| Image(uiImage: identiconImage) | ||
| .resizable() | ||
| .frame(width: size, height: size) | ||
| .aspectRatio(contentMode: .fit) | ||
| } else { | ||
| EmptyView() | ||
| } | ||
| } | ||
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| /// Helper function to generate an Identicon image. | ||
| /// | ||
| /// - Returns: A `UIImage` instance representing the generated Identicon, or nil if the image couldn't be generated. | ||
| private func createIdenticonImage() -> UIImage? { | ||
| identiconGenerator.generateIdenticonImage(from: publicKey, size: size) | ||
| } | ||
| } |
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ios/PolkadotVault/Components/Identicons/PolkadotIdenticonViewPreviews.swift
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| // | ||
| // PolkadotIdenticonViewPreviews.swift | ||
| // PolkadotVault | ||
| // | ||
| // Created by Krzysztof Rodak on 02/08/2023. | ||
| // | ||
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| import PolkadotIdenticon | ||
| import SwiftUI | ||
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| struct PolkadotIdenticonView_Previews: PreviewProvider { | ||
| static var previews: some View { | ||
| VStack { | ||
| PolkadotIdenticonView( | ||
| publicKey: .hex("d43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d"), | ||
| size: 100 | ||
| ) | ||
| PolkadotIdenticonView( | ||
| publicKey: .base58("5GrwvaEF5zXb26Fz9rcQpDWS57CtERHpNehXCPcNoHGKutQY"), | ||
| size: 100 | ||
| ) | ||
| PolkadotIdenticonView( | ||
| publicKey: .data(Data([ | ||
| 212, 53, 147, 199, 21, 253, 211, 28, 97, 20, 26, 189, 4, 169, 159, 214, 130, 44, 133, 88, | ||
| 133, 76, 205, 227, 154, 86, 132, 231, 165, 109, 162, 125 | ||
| ])), | ||
| size: 100 | ||
| ) | ||
| } | ||
| } | ||
| } |