iOS & Mac Device Disk Space Information

DeviceDiskInformation.swift

import Foundation

class ByteInfo {
    class func GBFormatter(_ bytes: Int64) -> String {
        let formatter = ByteCountFormatter()
        formatter.allowedUnits = ByteCountFormatter.Units.useGB
        formatter.countStyle = ByteCountFormatter.CountStyle.decimal
        formatter.includesUnit = false
        return formatter.string(fromByteCount: bytes) as String
    }

    class func MBFormatter(_ bytes: Int64) -> String {
        let formatter = ByteCountFormatter()
        formatter.allowedUnits = ByteCountFormatter.Units.useMB
        formatter.countStyle = ByteCountFormatter.CountStyle.decimal
        formatter.includesUnit = false
        return formatter.string(fromByteCount: bytes) as String
    }

    class func KBFormatter(_ bytes: Int64) -> String {
        let formatter = ByteCountFormatter()
        formatter.allowedUnits = ByteCountFormatter.Units.useKB
        formatter.countStyle = ByteCountFormatter.CountStyle.decimal
        formatter.includesUnit = false
        return formatter.string(fromByteCount: bytes) as String
    }
}
class DeviceDiskInformation {

    class var totalDiskSpaceInBytes:Int64 {
        get {
            do {
                let systemAttributes = try FileManager.default.attributesOfFileSystem(forPath: NSHomeDirectory() as String)
                let space = (systemAttributes[FileAttributeKey.systemSize] as? NSNumber)?.int64Value
                return space!
            } catch {
                return 0
            }
        }
    }

    class var freeDiskSpaceInBytes:Int64 {
        get {
            do {
                let systemAttributes = try FileManager.default.attributesOfFileSystem(forPath: NSHomeDirectory() as String)
                let freeSpace = (systemAttributes[FileAttributeKey.systemFreeSize] as? NSNumber)?.int64Value
                return freeSpace!
            } catch {
                return 0
            }
        }
    }

    class var usedDiskSpaceInBytes:Int64 {
        get {
            let usedSpace = totalDiskSpaceInBytes - freeDiskSpaceInBytes
            return usedSpace
        }
    }

}
print("---GB---")
print(ByteInfo.GBFormatter(DeviceDiskInformation.totalDiskSpaceInBytes))
print(ByteInfo.GBFormatter(DeviceDiskInformation.freeDiskSpaceInBytes))
print(ByteInfo.GBFormatter(DeviceDiskInformation.usedDiskSpaceInBytes))
print("---MB---")
print(ByteInfo.MBFormatter(DeviceDiskInformation.totalDiskSpaceInBytes))
print(ByteInfo.MBFormatter(DeviceDiskInformation.freeDiskSpaceInBytes))
print(ByteInfo.MBFormatter(DeviceDiskInformation.usedDiskSpaceInBytes))
print("---KB---")
print(ByteInfo.KBFormatter(DeviceDiskInformation.totalDiskSpaceInBytes))
print(ByteInfo.KBFormatter(DeviceDiskInformation.freeDiskSpaceInBytes))
print(ByteInfo.KBFormatter(DeviceDiskInformation.usedDiskSpaceInBytes))