Kotlin For Android Developers – A Classy Handbook With Advantages & Disadvantages

• Features of Kotlin are safer than Java. It has predicted that in future, Kotlin will be the better programming language.

• Kotlin allows developers to extend the functionality of existing classes without inheriting from them.

• Kotlin supports smart casts which are capable of handling all the redundant classes by itself.

Fact: @kotlin language easy to implement for #Android #appdevelopment.

Kotlin has various functionality which reduces the heaviness of the code writing process. pic.twitter.com/bYdIaGwSbZ

— iMOBDEV Technologies (@iMOBDEVTech) September 6, 2018

Code written in Java for “POJO class”.

public class User {

private int id;
private String name;
private String age;

public int getId() {
return id;
}

public void setId(int id) {
this.id = id;
}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}

public String getAge() {
return age;
}

public void setAge(String age) {
this.age = age;
}
}

data class User(val id: Int, val name: String, val age:String)

/*Extension function*/

 fun EditText.onChange(cb: (String) -> Unit) {
 this.addTextChangedListener(object : TextWatcher {
 override fun afterTextChanged(s: Editable?) {
 cb(s.toString())
 }

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

 /*Using extension function*/ 

 etMain.onChange { tvMain.text = it }

Developers can take efforts in creativity for app development using @kotlin programming language. #Android #Kotlin #programming #language #AndroidDev @Android @AndroidDevelope #appdevelopment pic.twitter.com/khlbnEw345 — iMOBDEV Technologies (@iMOBDEVTech) September 6, 2018

• Kotlin is a completely open source.
• Kotlin compiles to JVM bytecode or JavaScript.
• Koltin comes with type system helps you avoid null pointer exceptions.
• Kotlin provides functional programming support with zero-overhead lambdas and ability to do mapping, folding etc. over standard Java collections.
• It also has one-click Java to Kotlin converter tool using which you can convert an existing Java project one file at a time, and everything will still compile even for complex programs that run to millions of lines of code.
• The Kotlin tooling has fully supported in Android Studio and compatible with the Android build system.
• Kotlin holds the open developer networks, and the backbone of open source makes the network strong, which is not limited to any single company.