Change Programmatically your App Icon

BMAppIconManager.swift

var current: BMAppIcon {
  return BMAppIcon.allCases.first(where: {
    $0.name == UIApplication.shared.alternateIconName
  }) ?? .classic
}

func setIcon(_ appIcon: BMAppIcon, completion: ((Bool) -> Void)? = nil) {
  
  guard current != appIcon,
    UIApplication.shared.supportsAlternateIcons
    else { return }
        
  UIApplication.shared.setAlternateIconName(appIcon.name) { error in
    if let error = error {
      print("Error setting alternate icon \(appIcon.name ?? ""): \(error.localizedDescription)")
    }
    completion?(error != nil)
  }
}