ThrownAlertContentView.swift

import SwiftUI

@available(iOS 16.0, *)
struct ContentView {
  @GestureState private var dragOffset = CGSize.zero
  @State private var position = CGSize.zero
  @State private var endSpinRotation = Angle.zero
  
  var draggingRotation: Angle {
    .degrees(CGPoint.zero.angle(to: CGPoint(dragOffset)))
  }
  
  func difference(_ positionLength: CGFloat,
                  _ frameLength: CGFloat) -> CGFloat {
    let pastMiddle = positionLength > (frameLength / 2)
    let adjustedLength = frameLength + 50
    return pastMiddle ? adjustedLength : -adjustedLength
    
  }
  
  func dragEnded(_ translation: CGSize, _ frame: CGRect) {
    // Start at drag location to prevent
    // automatic reset to start location
    self.position.height += translation.height
    self.position.width += translation.width
    self.endSpinRotation = draggingRotation
    
    withAnimation {
      do {
        let heightDifference = difference(self.position.height, frame.height)
        self.position.height = translation.height + heightDifference
      }
      do {
        let widthDifference = difference(self.position.width, frame.width)
        self.position.width = translation.width + widthDifference
      }
      self.endSpinRotation = .degrees(360)
    }
  }
}