iosdevie

struct DataModel: Identifiable{
    
    var id = UUID()
    var name: String
    var icon: String
    var children : [DataModel]?
}

iosdevie

@main
struct WhatsNewiOS14SwiftUIApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
    }
}

iosdevie

MyModel.apply{
  
  switch result {
  
    case .success(let model):
        currentModel = model
        
    case .failure(let error):
        handleFailure(for: error)  
  }

iosdevie

PHPhotoLibrary.requestAuthorization(for: .readWrite) { status in
 switch status {  
 case .limited:      
   print("limited access granted")  
 default:
   print("not implemented")
 }
}

iosdevie

let requestHandler = VNImageRequestHandler(cgImage: originalImage, options: [:])
let saliencyRequest = VNGenerateAttentionBasedSaliencyImageRequest(completionHandler: nil)
try requestHandler.perform([self.saliencyRequest])
guard let results = self.saliencyRequest.results?.first else{return}
let observations = results as? VNSaliencyImageObservation
let salientObjects = observation.salientObjects

iosdevie

RoundedRectangle(cornerRadius: cornerRadius)
.fill(LinearGradient(gradient: Gradient(colors: [.purple, .red, .blue]), startPoint: .top, endPoint: .bottom))
.frame(width: 30, height: value)

iosdevie

let audioEngine = AVAudioEngine()
let audioSession = AVAudioSession.sharedInstance()
try audioSession.setCategory(.record, mode: .measurement, options: .duckOthers)
try audioSession.setActive(true, options: .notifyOthersOnDeactivation)

let inputNode = audioEngine.inputNode

inputNode.removeTap(onBus: 0)
        let recordingFormat = inputNode.outputFormat(forBus: 0)
        inputNode.installTap(onBus: 0, bufferSize: 1024, format: recordingFormat) { (buffer: AVAudioPCMBuffer, when: AVAudioTime) in

iosdevie

func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], 
rssi RSSI: NSNumber) {

        self.peripheral = peripheral
        self.peripheral?.delegate = self
        
        centralManager?.connect(peripheral, options: nil)
        centralManager?.stopScan()
 }

iosdevie

@objc func preview() {
        let bounds = canvasView.drawing.bounds
        if let image = clippedImageForRect(clipRect: bounds, inView: mapView!){
            showPreviewImage(image: image)
        }
    }

iosdevie

let canvasView = PKCanvasView(frame: .zero)
canvasView.translatesAutoresizingMaskIntoConstraints = false
canvasView.isOpaque = false
view.addSubview(canvasView)
        
canvasView.backgroundColor = .clear
        
NSLayoutConstraint.activate([
canvasView.topAnchor.constraint(equalTo: self.view.safeAreaLayoutGuide.topAnchor, constant: 40),
canvasView.bottomAnchor.constraint(equalTo: view.bottomAnchor),