val userNameTextView = nav_view.getHeaderView(0).findViewById<TextView>(R.id.user_profile_name)
userNameTextView.text = Prevalent.currentOnlineUser.name
Picasso.get().load(Prevalent.currentOnlineUser.image).placeholder(R.drawable.profile).into(profileImageView)

import com.example.nerus.Model.Users
class Prevalent {
    companion object {
        lateinit var currentOnlineUser: Users
        const val UserPasswordKey: String = "UserPhone"
        const val UserPhoneKey: String = "UserPassword"
    }
}

class Users {
    var name: String = ""
    var phone: String = ""
    var password: String = ""
    var image: String = ""
    var address: String = ""

    constructor()

    constructor(name: String, phone: String, password: String, image: String, address: String) {
        this.name = name
        this.phone = phone
        this.password = password
        this.image = image
        this.address = address
    }
}