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+			);

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+			isa = XCBuildConfiguration;

+			buildSettings = {

+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;

+				CODE_SIGN_ENTITLEMENTS = "USB Meter/USB Meter.entitlements";

+				CODE_SIGN_STYLE = Automatic;

+				DEVELOPMENT_ASSET_PATHS = "\"USB Meter/Preview Content\"";

+				DEVELOPMENT_TEAM = 9K2U3V9GZF;

+				ENABLE_PREVIEWS = YES;

+				INFOPLIST_FILE = "USB Meter/Info.plist";

+				LD_RUNPATH_SEARCH_PATHS = (

+					"$(inherited)",

+					"@executable_path/Frameworks",

+				);

+				PRODUCT_BUNDLE_IDENTIFIER = "ro.xdev.USB-Meter";

+				PRODUCT_NAME = "$(TARGET_NAME)";

+				SUPPORTS_MACCATALYST = YES;

+				SWIFT_VERSION = 5.0;

+				TARGETED_DEVICE_FAMILY = "1,2";

+			};

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+		};

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+			isa = XCBuildConfiguration;

+			buildSettings = {

+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;

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+				CODE_SIGN_STYLE = Automatic;

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+				DEVELOPMENT_TEAM = 9K2U3V9GZF;

+				ENABLE_PREVIEWS = YES;

+				INFOPLIST_FILE = "USB Meter/Info.plist";

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+					"$(inherited)",

+					"@executable_path/Frameworks",

+				);

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+				SUPPORTS_MACCATALYST = YES;

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+			};

+			name = Release;

+		};

+/* End XCBuildConfiguration section */

+

+/* Begin XCConfigurationList section */

+		43CBF657240BF3EB00255B8B /* Build configuration list for PBXProject "USB Meter" */ = {

+			isa = XCConfigurationList;

+			buildConfigurations = (

+				43CBF671240BF3ED00255B8B /* Debug */,

+				43CBF672240BF3ED00255B8B /* Release */,

+			);

+			defaultConfigurationIsVisible = 0;

+			defaultConfigurationName = Release;

+		};

+		43CBF673240BF3ED00255B8B /* Build configuration list for PBXNativeTarget "USB Meter" */ = {

+			isa = XCConfigurationList;

+			buildConfigurations = (

+				43CBF674240BF3ED00255B8B /* Debug */,

+				43CBF675240BF3ED00255B8B /* Release */,

+			);

+			defaultConfigurationIsVisible = 0;

+			defaultConfigurationName = Release;

+		};

+/* End XCConfigurationList section */

+

+/* Begin XCRemoteSwiftPackageReference section */

+		437AEE162424AC3F0025C373 /* XCRemoteSwiftPackageReference "CryptoSwift" */ = {

+			isa = XCRemoteSwiftPackageReference;

+			repositoryURL = "https://github.com/krzyzanowskim/CryptoSwift.git";

+			requirement = {

+				branch = master;

+				kind = branch;

+			};

+		};

+/* End XCRemoteSwiftPackageReference section */

+

+/* Begin XCSwiftPackageProductDependency section */

+		4347F01C28D717C1007EE7B1 /* CryptoSwift */ = {

+			isa = XCSwiftPackageProductDependency;

+			package = 437AEE162424AC3F0025C373 /* XCRemoteSwiftPackageReference "CryptoSwift" */;

+			productName = CryptoSwift;

+		};

+/* End XCSwiftPackageProductDependency section */

+

+/* Begin XCVersionGroup section */

+		43CBF663240BF3EB00255B8B /* CKModel.xcdatamodeld */ = {

+			isa = XCVersionGroup;

+			children = (

+				43CBF664240BF3EB00255B8B /* USB_Meter.xcdatamodel */,

+			);

+			currentVersion = 43CBF664240BF3EB00255B8B /* USB_Meter.xcdatamodel */;

+			path = CKModel.xcdatamodeld;

+			sourceTree = "<group>";

+			versionGroupType = wrapper.xcdatamodel;

+		};

+/* End XCVersionGroup section */

+	};

+	rootObject = 43CBF654240BF3EB00255B8B /* Project object */;

+}

+<?xml version="1.0" encoding="UTF-8"?>

+<Workspace

+   version = "1.0">

+   <FileRef

+      location = "self:">

+   </FileRef>

+</Workspace>

+<?xml version="1.0" encoding="UTF-8"?>

+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">

+<plist version="1.0">

+<dict>

+	<key>IDEDidComputeMac32BitWarning</key>

+	<true/>

+</dict>

+</plist>

+{

+  "object": {

+    "pins": [

+      {

+        "package": "CryptoSwift",

+        "repositoryURL": "https://github.com/krzyzanowskim/CryptoSwift.git",

+        "state": {

+          "branch": "master",

+          "revision": "bdfc481d79e3204480d1a9bee4c12f66b84a4b5d",

+          "version": null

+        }

+      }

+    ]

+  },

+  "version": 1

+}

+//

+//  AppDelegate.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 01/03/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import UIKit

+import CoreData

+

+//let btSerial = BluetoothSerial(delegate: BSD())

+let appData = AppData()

+enum Constants {

+    static let chartUnderscan: CGFloat = 0.5

+    static let chartOverscan: CGFloat = 1 - chartUnderscan

+}

+// MARK: Clock

+

+// MARK: Debug

+public func track(_ message: String = "", file: String = #file, function: String = #function, line: Int = #line ) {

+    let date = Date()

+    let calendar = Calendar.current

+    let hour = calendar.component(.hour, from: date)

+    let minutes = calendar.component(.minute, from: date)

+    let seconds = calendar.component(.second, from: date)

+    print("\(hour):\(minutes):\(seconds) - \(file):\(line) - \(function) \(message)")

+}

+

+@UIApplicationMain

+class AppDelegate: UIResponder, UIApplicationDelegate {

+

+

+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

+        // Override point for customization after application launch.

+        return true

+    }

+

+    // MARK: UISceneSession Lifecycle

+

+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {

+        // Called when a new scene session is being created.

+        // Use this method to select a configuration to create the new scene with.

+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)

+    }

+

+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {

+        // Called when the user discards a scene session.

+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.

+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.

+    }

+

+    // MARK: - Core Data stack

+

+    lazy var persistentContainer: NSPersistentCloudKitContainer = {

+        /*

+         The persistent container for the application. This implementation

+         creates and returns a container, having loaded the store for the

+         application to it. This property is optional since there are legitimate

+         error conditions that could cause the creation of the store to fail.

+        */

+        let container = NSPersistentCloudKitContainer(name: "CKModel")

+        container.loadPersistentStores(completionHandler: { (storeDescription, error) in

+            if let error = error as NSError? {

+                // Replace this implementation with code to handle the error appropriately.

+                // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.

+                 

+                /*

+                 Typical reasons for an error here include:

+                 * The parent directory does not exist, cannot be created, or disallows writing.

+                 * The persistent store is not accessible, due to permissions or data protection when the device is locked.

+                 * The device is out of space.

+                 * The store could not be migrated to the current model version.

+                 Check the error message to determine what the actual problem was.

+                 */

+                fatalError("Unresolved error \(error), \(error.userInfo)")

+            }

+        })

+        return container

+    }()

+

+    // MARK: - Core Data Saving support

+

+    func saveContext () {

+        let context = persistentContainer.viewContext

+        if context.hasChanges {

+            do {

+                try context.save()

+            } catch {

+                // Replace this implementation with code to handle the error appropriately.

+                // fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.

+                let nserror = error as NSError

+                fatalError("Unresolved error \(nserror), \(nserror.userInfo)")

+            }

+        }

+    }

+

+}

+

+{

+  "images" : [

+    {

+      "idiom" : "iphone",

+      "size" : "20x20",

+      "scale" : "2x"

+    },

+    {

+      "idiom" : "iphone",

+      "size" : "20x20",

+      "scale" : "3x"

+    },

+    {

+      "idiom" : "iphone",

+      "size" : "29x29",

+      "scale" : "2x"

+    },

+    {

+      "idiom" : "iphone",

+      "size" : "29x29",

+      "scale" : "3x"

+    },

+    {

+      "idiom" : "iphone",

+      "size" : "40x40",

+      "scale" : "2x"

+    },

+    {

+      "idiom" : "iphone",

+      "size" : "40x40",

+      "scale" : "3x"

+    },

+    {

+      "idiom" : "iphone",

+      "size" : "60x60",

+      "scale" : "2x"

+    },

+    {

+      "idiom" : "iphone",

+      "size" : "60x60",

+      "scale" : "3x"

+    },

+    {

+      "idiom" : "ipad",

+      "size" : "20x20",

+      "scale" : "1x"

+    },

+    {

+      "idiom" : "ipad",

+      "size" : "20x20",

+      "scale" : "2x"

+    },

+    {

+      "idiom" : "ipad",

+      "size" : "29x29",

+      "scale" : "1x"

+    },

+    {

+      "idiom" : "ipad",

+      "size" : "29x29",

+      "scale" : "2x"

+    },

+    {

+      "idiom" : "ipad",

+      "size" : "40x40",

+      "scale" : "1x"

+    },

+    {

+      "idiom" : "ipad",

+      "size" : "40x40",

+      "scale" : "2x"

+    },

+    {

+      "idiom" : "ipad",

+      "size" : "76x76",

+      "scale" : "1x"

+    },

+    {

+      "idiom" : "ipad",

+      "size" : "76x76",

+      "scale" : "2x"

+    },

+    {

+      "idiom" : "ipad",

+      "size" : "83.5x83.5",

+      "scale" : "2x"

+    },

+    {

+      "idiom" : "ios-marketing",

+      "size" : "1024x1024",

+      "scale" : "1x"

+    }

+  ],

+  "info" : {

+    "version" : 1,

+    "author" : "xcode"

+  }

+}

+{

+  "info" : {

+    "version" : 1,

+    "author" : "xcode"

+  }

+}

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>

+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">

+    <dependencies>

+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>

+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>

+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>

+    </dependencies>

+    <scenes>

+        <!--View Controller-->

+        <scene sceneID="EHf-IW-A2E">

+            <objects>

+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">

+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">

+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>

+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>

+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>

+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>

+                    </view>

+                </viewController>

+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>

+            </objects>

+            <point key="canvasLocation" x="53" y="375"/>

+        </scene>

+    </scenes>

+</document>

+//

+//  MacAdress.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 04/03/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import Foundation

+

+class MACAddress {

+    var bytes: [UInt8] = [0,0,0,0,0,0]

+    

+    init(from data: Data) {

+        data.copyBytes(to: &bytes, count: bytes.count)

+    }

+

+    init(from str: String) {

+        let macAddressParts = str.split(separator: ":")

+        for index in stride(from: 0, to: 5, by: 1){

+            bytes[index] = UInt8(macAddressParts[index], radix: 16) ?? 0xff;

+        }

+    }

+}

+

+extension MACAddress : CustomStringConvertible {

+    var description: String {

+        var retval = String(format: "%02X", bytes[0] )

+        retval += ":" + String(format: "%02X", bytes[1] )

+        retval += ":" + String(format: "%02X", bytes[2] )

+        retval += ":" + String(format: "%02X", bytes[3] )

+        retval += ":" + String(format: "%02X", bytes[4] )

+        retval += ":" + String(format: "%02X", bytes[5] )

+        return retval;

+    }

+}

+//

+//  CBManagerState.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 02/03/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+//import Foundation

+

+import CoreBluetooth

+import SwiftUI

+

+//Manager States

+//.poweredOff   A state that indicates Bluetooth is currently powered off.

+//.poweredOn    A state that indicates Bluetooth is currently powered on and available to use.

+//.resetting    A state that indicates the connection with the system service was momentarily lost.

+//.unauthorized A state that indicates the application isn’t authorized to use the Bluetooth low energy role.

+//.unknown      The manager’s state is unknown.

+//.unsupported  A state that indicates this device doesn’t support the Bluetooth low energy central or client role.

+

+extension CBManagerState {

+    var description: String  {

+        switch self {

+        case .poweredOff:

+            return "CBManagerState.poweredOff"

+        case .poweredOn:

+            return "CBManagerState.poweredOn"

+        case .resetting:

+            return "CBManagerState.resetting"

+        case .unauthorized:

+            return "CBManagerState.unauthorized"

+        case .unknown:

+            return "CBManagerState.unknown"

+        case .unsupported:

+            return "CBManagerState.unsupported"

+        default:

+            return "CBManagerState.other"

+        }

+    }

+    

+    var color: Color  {

+        switch self {

+        case .poweredOff:

+            return Color.red

+        case .poweredOn:

+            return Color.blue

+        case .resetting:

+            return Color.green

+        case .unauthorized:

+            return Color.orange

+        case .unknown:

+            return Color.secondary

+        case .unsupported:

+            return Color.gray

+        default:

+            return Color.yellow

+        }

+    }

+    

+    var helpView: AnyView  {

+        switch self {

+        case .poweredOff:

+            return AnyView(poweredOffHelperView())

+        case .poweredOn:

+            return AnyView(poweredOnHelperView())

+        case .resetting:

+            return AnyView(resettingHelperView())

+        case .unauthorized:

+            return AnyView(unauthorizedHelperView())

+        case .unknown:

+            return AnyView(unknownHelperView())

+        case .unsupported:

+            return AnyView(unsupportedHelperView())

+        default:

+            return AnyView(defaultHelperView())

+        }

+    }

+    

+    private struct poweredOffHelperView: View {

+        var body: some View {

+            Text("Bluetooth is turned off on this device. Tou can turn it on in Settings->Bluetooth")

+        }

+    }

+    private struct poweredOnHelperView: View {

+        var body: some View {

+            Text("Bluetooth is up an running")

+        }

+    }

+    

+    private struct resettingHelperView: View {

+        var body: some View {

+            VStack {

+                Text("Bluetooth is resetting")

+                Text("Maybe wait for a while...")

+            }

+        }

+    }

+    

+    private struct unauthorizedHelperView: View {

+        var body: some View {

+            HStack {

+                Text("This application does not have permission to access Bluetooth. You can give it in ")

+                Button(action: { UIApplication.shared.open(URL(string: UIApplication.openSettingsURLString)!, options: [:], completionHandler: nil) }) {

+                    Text("Settings")

+                }

+            }

+        }

+    }

+    

+    private struct unknownHelperView: View {

+        var body: some View {

+            VStack {

+            Text("Bluetooth state is unknown!")

+            Text("There is no help available for this situation.")

+            }

+        }

+    }

+    

+    private struct unsupportedHelperView: View {

+        var body: some View {

+            VStack {

+            Text("Your device does not have required capabilities to establish Bluetooth connections with USB Meters")

+            Text("There is no help available for this situation.")

+            }

+        }

+    }

+    

+    private struct defaultHelperView: View {

+        var body: some View {

+            VStack {

+                Text("Unknown Bluetooth state.")

+                Text("You may contact develloper.")

+            }

+        }

+    }

+}

+//

+//  CGPoint.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 10/05/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import CoreGraphics

+

+extension CGPoint {

+    func moveDown(by: CGFloat) -> CGPoint {

+        return CGPoint(x: self.x, y: self.y + by)

+    }

+

+    func moveUp(by: CGFloat) -> CGPoint {

+        return CGPoint(x: self.x, y: self.y - by)

+    }

+

+    func putInBounds (minX: CGFloat, maxX: CGFloat, minY: CGFloat, maxY: CGFloat) -> CGPoint {

+        let xRange = maxX - minX

+        let yRange = maxY - minY

+        let xValue = self.x - minX

+        let yValue = self.y - minY

+        print ("self: \(self) xRange:\(xRange) yRange:\(yRange) xValue:\(xValue) yValue:\(yValue) ")

+        return CGPoint(x: xValue / xRange, y: yValue / yRange)

+    }

+}

+//

+//  Data.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 08/03/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import Foundation

+

+extension Data {

+    

+    var hexEncodedStringValue : String {

+        get{

+            return map { String(format: "%02hhx", $0) }.joined()

+        }

+    }

+//Ceva mostenit

+//    init<T>(from value: T) {

+//        var value = value

+//        self.init(buffer: UnsafeBufferPointer(start: &value, count: 1))

+//    }

+    

+    func value<T>(from: Int) -> T {

+        let to = from + MemoryLayout<T>.size

+        //track("size: \(self.count) from:\(from) to:\(to)")

+        return self.subdata(in: from..<to).withUnsafeBytes { $0.load(as: T.self) }

+    }

+

+    func value<T>() -> T {

+        return self.withUnsafeBytes { $0.load(as: T.self) }

+    }

+

+    func subdata(in range: ClosedRange<Index>) -> Data {

+        return subdata(in: range.lowerBound ..< range.upperBound)

+    }

+    

+    func subdata(from: Int, length: Int) -> Data {

+        return subdata(in: self.startIndex + from ..< self.startIndex.advanced(by: from + length))

+    }

+

+    func subdata(from: Int, to: Int) -> Data {

+        return subdata(in: self.startIndex + from ... self.startIndex.advanced(by: to))

+    }

+

+    

+    var utf8String: String {

+        return string(as: .utf8)

+    }

+

+    var asciiString: String {

+        return string(as: .ascii)

+    }

+

+    func string(as encoding: String.Encoding) -> String {

+        return String(data: self, encoding: encoding) ?? ""

+    }

+}

+//

+//  Date.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 13/04/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import Foundation

+

+extension Date {

+

+    //  https://nsdateformatter.com

+    func format( as format: String = "yyyy-MM-dd HH:mm") -> String {

+        let formatter = DateFormatter()

+        formatter.dateStyle = .short

+        formatter.dateFormat = format

+        return formatter.string(from: self)

+    }

+

+}

+//

+//  Decimal.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 09/03/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import Foundation

+

+import Foundation

+

+extension Decimal {

+

+    var doubleValue:Double {

+        return NSDecimalNumber(decimal:self).doubleValue

+    }

+

+}

+//

+//  Double.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 08/03/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import Foundation

+import CoreGraphics

+

+extension Double {

+    

+    func format(f: String) -> String {

+        return String(format: "%\(f)", self)

+    }

+

+    func format(decimalDigits: Int) -> String {

+        return String(format: "%.\(decimalDigits)f", self)

+    }

+

+    func format(digits: Int) -> String {

+        for d in 0...digits {

+            if self < pow(10, d).doubleValue {

+                return self.format(f: ".\(digits - d)f")

+            }

+        }

+        return self.format(f: ".0f")

+    }

+    

+    var uInt8Value: UInt8 {

+        return UInt8(self)

+    }

+

+    var intValue: Int {

+        return Int(self)

+    }

+

+    var CGFloatValue: CGFloat {

+        return CGFloat(self)

+    }

+

+    func format(fractionDigits: Int) ->String {

+        let nf = NumberFormatter()

+        nf.minimumFractionDigits = fractionDigits

+        nf.maximumFractionDigits = fractionDigits

+        return nf.string(from: NSNumber(value: self))!

+    }

+}

+//

+//  Float.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 08/03/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import Foundation

+

+extension Float {

+    var uInt8Value: UInt8 {

+        return UInt8(self)

+    }

+    

+    var doubleValue: Double {

+        return Double(self)

+    }

+}

+//

+//  Path.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 14/05/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import CoreGraphics

+import SwiftUI

+

+extension Path {

+    mutating func addLine(from startPoint: CGPoint, to endPoint: CGPoint) {

+        self.move(to: startPoint)

+        self.addLine(to: endPoint)

+    }

+}

+//

+//  File.swift

+//  USB Meter

+//

+//  Created by Bogdan Timofte on 08/05/2020.

+//  Copyright © 2020 Bogdan Timofte. All rights reserved.

+//

+

+import SwiftUI

+

+struct RoundedRectangleBackground: ViewModifier {

+    

+    var cornerRadius: CGFloat

+    var foregroundColor: Color

+    var opacity: Double

+    var blurRadius: CGFloat

+

+    func body(content: Content) -> some View {

+        content.background(

+            RoundedRectangle(cornerRadius: cornerRadius)

+                .foregroundColor(foregroundColor)

+                .opacity(opacity)

+        .blur(radius: blurRadius)

+        )

+    }

+}

+

+struct RoundedRectangleBorder: ViewModifier {

+    

+    var cornerRadius: CGFloat

+    var foregroundColor: Color

+    var lineWidth: CGFloat

+    var blurRadius: CGFloat

+    

+    func body(content: Content) -> some View {

+        content.background(

+            RoundedRectangle(cornerRadius: cornerRadius)

+                .stroke(lineWidth: lineWidth)

+                .foregroundColor(foregroundColor)

+                .blur(radius: blurRadius)

+        )

+    }

+}

+