10 Tips to Create a Kotlin App

23 August, 2020

10 Tips to Create a Kotlin App

Even though it cannot outdo Java in terms of popularity, Kotlin has become the face of android app development. These sudden changes came into action when Google officially announced Kotlin as the official programming language for coding Android applications after which the majority of app developers started using it to create a mobile app. Experts say that its popularity is due to Kotlin’s ability to offer extensive features while being an open-source language and ensures that the developer has powerful tooling support, clarity, safety, and flexibility. Mentioned below are 10 tips that make app development in Kotlin handier. 

Easy to Learn

The ease of learning Kotlin makes it easy for start-ups to enter the field of app development and its easily understandable codes helps any app development company to set up a young team of developers who would be knowing how to execute a client’s requirements without making it complex. While it can be easily grasped by a programmer who knows programming in Java, Kotlin also incorporates features that are not available in Java, thereby increasing the problem-solving capability and providing more creativity to programmers.

Quick Coding

Absence of semicolons and easily available string templates make coding in Kotlin very simple. The programs are therefore easy to read and understand. Unlike java where there are increased chances of bugs, codes in Kotlin being concise leaves fewer chances of both runtime and compile time errors. The language also allows the use of mutable and immutable declarations for different data structures.

Simple start

Launching a new project in Kotlin requires merely a click on File and then New Project. The programmer can now start his/her work. 

Shorter program for the same task

Kotlin has a slick Integrated Development Environment (IDE) which makes its codes much smaller and streamlines the programming process, in comparison to Java. Being a statically-typed language it is very easy to read and write and requires much shorter code than Java’s code for the same problem. 

Custom Getters and Setters

Getter and setter, the syntax of declaring a var property Kotlin is a lot simpler in Kotlin when compared to Java. The getters and setters in Kotlin also have optional PropertyType, which use the structure of a model. However, the programmer needs to specify a custom behaviour to get and set the fields. One of the added advantages is that if a framework needs to use custom models, and the programmer uses a stored and retrieved variable rather than using a local one then if at all the model needs to change to another data source, the code needs to be changed in only one place. This turn reduces the complexity of development and saves time.

Data Classes

Data classes available in Kotlin help in clarifying the intention of the model and everything that goes with it. This in turn helps the programmer by providing a clear idea of business logic and idea making the entire task of creating a mobile app smoother and faster.

Global Constants

Kotlin has a great way to incorporate the scope of constants in the entire app when it needs to be global. It allows constants of the entire app to be defined in one place, eliminating the need to take the long route of constant class and thereby decreasing the complexity of the app.

Java Compatibility

Even though it has some major differences over Java that makes it handier, Kotlin has a powerful advantage of easily using and exchanging information from Java in a number of ways. Nevertheless, Java and Kotlin code can co-exist in the same project as a number of Java libraries as well as various advanced frameworks are compatible with Kotlin projects. 

Null Safety

When working with Java, Null Pointer Exception appears almost 90% of the time during debugging, which is quite irritating for every developer as it eats up most of the time that could be otherwise used to perfect the features of the app. On the other hand, In Kotlin, variables are not by default set to ‘null.’ For a variable to accept nulls, their types must be marked with a “?”. Kotlin uses a tape system that can differentiate between nullable and non-nullable references. Therefore, Null Pointer Exception barely exists in Kotlin.

Solution to Some of Java’s Flaws

One of the famous problems of Java is null pointer, which Kotlin has attempted to solve by adopting things from a number of languages like C# and mainly from Scala. Elements like parameter lists and variable declarations with the data type following a variable can also be in Kotlin.

Kotlin is a language that has full support in writing codes for Android apps and therefore, is preferred by app developers to create a mobile app. Java has been considered as the language for app development. However, availability of features essential for app development requirements and human understandable codes persuade even experienced developers to suggest Kotlin over Java for not only safety reasons but also because it reduces the workload on the designer thereby saving money and time.

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