SwiftUI - 狂人山庄 Madman Hills

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SwiftUI

A collection of 2 posts

Swift读取RSA Key报错RSA private key creation from data failed

macOS Swift程序因为需要，使用了RSA非对称加密。读取公钥的时候一切正常，但读取私钥的时候会报错 Error Domain=NSOSStatusErrorDomain Code=-50 "RSA private key creation from data failed" (paramErr: error in user parameter list) UserInfo={numberOfErrorsDeep=0, NSDescription=RSA private key creation from data failed} 相关代码片段如下 func loadPrivateKey(from string: String) -> SecKey? { guard let data = Data(base64Encoded:

@StateObject和@ObservedObject的区别

@ObservedObject创建的对象，会在View重绘的时候重新创建。@StateObject创建的对象不会，只会创建一次，所以在视图重建的时候不会受到影响。比如 @ObservedObject var downloader = Downloader() // ... @StateObject var downloader = Downloader() VStack { ProgressView(value: downloader.progress.fractionCompleted) .progressViewStyle(LinearProgressViewStyle()) Text("\(Int(downloader.progress.fractionCompleted * 100))%") Button(action: { downloader.cancelDownload() isDownloading = false }) { Text("Cancel") }