detect network type use kotlin

NetWorkType.kt

class NetWorkType {
    companion object {
        fun wifi(activity: Activity): Boolean {
            val manager = activity.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
            manager.activeNetworkInfo?.let {
                if (!it.isAvailable) {
                    return false
                }
                manager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)?.let {
                    return it.state == NetworkInfo.State.CONNECTING || it.state == NetworkInfo.State.CONNECTED
                }
            }
            return false
        }

        fun gprs(activity: Activity): Boolean {
            val manager = activity.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
            manager.activeNetworkInfo?.let {
                if (!it.isAvailable) {
                    return false
                }
                manager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE)?.let {
                    return it.state == NetworkInfo.State.CONNECTING || it.state == NetworkInfo.State.CONNECTED
                }
            }
            return false
        }
    }
}