Anitaa Murthy anitaa1990

🎯

Focusing

Android Developer/iOS Developer

anitaa1990 / JobTracker.kt

Created August 13, 2024 10:42

	// Solution step 1: Create an interface called Notifier.
	// It has one method: jobAlert(String jobDescription)
	interface Notifier {
	fun jobAlert(jobDescription: String)
	}

	// Step II:
	// Create an emailClient class that implements
	// Notifier interface
	class EmailClient : Notifier {

anitaa1990 / JobTracker.kt

Created August 13, 2024 10:40

JobTracker.kt

	import kotlin.jvm.JvmStatic

	/**
	* Interface for generating job alerts
	*/
	interface AlertGenerator {
	fun generateJobAlert(job: String): String
	}

	/**

anitaa1990 / TextWatcher.kt

Created August 13, 2024 10:39

	import android.text.Editable
	import android.text.TextWatcher
	import android.widget.EditText

	// We create an interface with one method
	interface TextWatcherWithInstance {
	fun onTextChanged(editText: EditText, s: CharSequence, start: Int, before: Int, count: Int)
	}

	// We create a custom class called MultiTextWatcher.

anitaa1990 / TextWatcher.kt

Created August 13, 2024 10:38

	import android.text.Editable
	import android.text.TextWatcher
	import android.widget.EditText

	editText.addTextChangedListener(object : TextWatcher {
	override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
	// Empty implementation
	}

	override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {

anitaa1990 / MainActivity.kt

Created August 13, 2024 10:34

	interface ClickListener {
	fun onClick()
	}

	class Fragment1 : ClickListener {
	override fun onClick() {
	decrementClickCount()
	//handle logic
	}

anitaa1990 / MainActivity.kt

Created August 13, 2024 10:33

	interface ClickListener {
	fun onClick()
	}

	class Fragment1 : ClickListener {
	override fun onClick() {
	//handle logic
	}

	fun decrementClickCount() {

anitaa1990 / TimeOfDayGreeting.kt

Last active August 13, 2024 10:36

	interface TimeOfDay {
	fun greet(): String
	}

	class TimeOfDayGreeting(private val timeOfDay: TimeOfDay) {
	fun getGreetingFromTimeOfDay(): String {
	return timeOfDay.greet()
	}
	}

anitaa1990 / TimeOfDayGreeting.kt

Created August 13, 2024 10:29

	class TimeOfDayGreeting {
	private var timeOfDay: String? = null

	/*
	* Every time this method is called it will
	* called an if else logic, which is in violation of the
	* OCP principle.
	*/
	fun getGreetingFromTimeOfDay(): String {
	return when (timeOfDay) {

anitaa1990 / CustomAdapter.kt

Created August 13, 2024 10:27

	override fun onBindViewHolder(holder: ViewHolder, position: Int) {
	val movie = movies[position]

	holder.title.text = movie.title
	holder.rating.text = movie.rating

	// all the logic is moved into util class...now is clean!
	holder.authors.text = AppUtils.getGenres(movie)
	}

anitaa1990 / CustomAdapter.kt

Created August 13, 2024 10:26

	override fun onBindViewHolder(holder: ViewHolder, position: Int) {
	val movie = movies[position]

	holder.title.text = movie.title
	holder.rating.text = movie.rating

	// SRP violation, onBindViewHolder has only the responsibility to display data
	// & not make data formatting operations

	val genres = movie.genres