yogacp

/**
 * Create the Abstract Adapter and the ViewHolder that we need to hold the item view
 */

abstract class AbstractAdapter<T : ViewBinding, ITEM> constructor(
    protected var itemList: List<ITEM>,
    private val bindingClass: (LayoutInflater, ViewGroup, Boolean) -> T
) : RecyclerView.Adapter<AbstractAdapter.Holder>() {

    var binding: T? = null

yogacp

class FriendListAdapter(val friendList: List<FriendListData.Friend>) :
    RecyclerView.Adapter<CountryAdapter.MyViewHolder>() {

    inner class MyViewHolder(view: View) : RecyclerView.ViewHolder(view) {
        var name: TextView = view.findViewById(R.id.text1)
        var popText: TextView = view.findViewById(R.id.text2)
    }

    override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
        val friend = friendList[position]

yogacp

/**
 * High Order Functions 
 * that execute function only in debug build variant
 */
fun debugMode(function: () -> Unit) {
    if (BuildConfig.DEBUG) {
        function()
    }
}

yogacp

/**
 * Can you simplify this code?
 * ==================================
 * Assesment Point:
 * 1. Line of code
 * 2. Variable naming
 * ==================================
 *
 * Get Data from this API to test your code: 
 * http://demo3325159.mockable.io/getBatchConfig

yogacp

/**
 * Extension for view visibility
 */
fun View.visible() {
    visibility = View.VISIBLE
}

fun View.gone() {
    visibility = View.GONE
}

yogacp

interface OnClickListener {
    fun onClick(v: View)
}

interface OnLongClickListener {
    fun onLongClick(v: View)
}

interface OnTouchListener {
    fun onTouch(v: View, event: MotionEvent)

yogacp

interface OnClickListener {
    fun onClick(v: View)
    fun onLongClick(v: View)
    fun onTouch(v: View, event: MotionEvent)
}

val button = findViewById<Button>(R.id.button)
button.setOnClickListener(object: OnClickListener{
    override fun onClick(v: View) {
        // Want to do some magic here

yogacp

interface Toy {
    var color: String?
}

open class FlyingToy : Toy {
    override var color: String? = "Red"
    open fun fly() {
        println("The toy is flying...")
    }
}

yogacp

interface Toy {
    var color: String?
    fun fly()
}

class Plane : Toy {
    override var color: String? = "Blue"
    override fun fly() {
        println("The plane is flying...")
    }

yogacp

/**
 * Sample of Meaningful Names
 */
fun saveData(data: User) {
 //...
}

fun deleteData(id: Int) {
 //...
}