Embracing Kotlin for Android App Development

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Representational Image of Kotlin for Android App Development

In 2019, Google declared Kotlin for Android App Development as its preferred language. From version 3.0 onward, it comes bundled with Android Studio by default.

With Google endorsing Kotlin, many developers are making the switch. The fact that numerous Java apps are now being redeveloped in Kotlin suggests that it’s the future of Android app building. Just as Swift replaced Objective C, Kotlin seems poised to replace Java in the Android app development scene.

Kotlin has prompted developers to reconsider their approach to app creation, given that Java has been the go-to language for innovative Android products for a considerable time.

Kotlin is a newer programming language designed to be an alternative to Java. It has several advantages over Java, such as being concise, reliable, safe, and having excellent support from integrated development environments (IDEs). It’s an open-source and well-established language. Big companies like Netflix, Uber, and Pinterest have already switched to Kotlin. Wondering how it can enhance the development process? Let’s find out.

What is Kotlin?

Kotlin is a versatile programming language that works on different platforms. It’s statically typed, meaning you specify the type of data a variable can hold. It’s made to boost productivity in a world mostly filled with Java. You can easily use it alongside Java, and it offers a more expressive way to write code, plus some safety features. Google even backs it officially for making Android apps.

Importance of Kotlin for Android App Development

In 2011, programmers from a company called JetBrains in Russia created Kotlin. Later, open-source developers joined in to enhance it. Kotlin is a typed programming language designed to run on the Java virtual machine. It’s open-source, versatile, and practical, blending both imperative and functional programming for quicker compilation.

Today, Kotlin is popular in mobile app development due to its open-source nature and rich features. It has been a helpful solution for Android developers, addressing issues that arise in Java and providing flexibility, safety, clarity, and tool support.

Challenges Faced by Kotlin

Initially, Kotlin programmers had a tough time dealing with the null-type system, and the solutions they came up with were quite cumbersome. After a few tries, the team introduced platform types, which are now part of the current version of Kotlin.

Kotlin has addressed several issues found in Java. For instance, its type system effectively handles null references. Kotlin boasts proper function types and avoids raw types. The arrays in Kotlin are invariant, and unlike Java, it doesn’t have checked exceptions.

The Key Advantages of Adopting Kotlin for Android App Development

Companies are choosing Kotlin for Android app development needs, especially as it is a supported language for writing Android app codes. Switching to Kotlin is a smart move for any organization, and here are its main advantages:

Natural Android App Development

Kotlin, a simple yet powerful language, offers a more streamlined approach to Android app development. Unlike Java’s issues and Scala’s dense programming language, Kotlin’s library for Android apps is small, keeping the method count low.

Mature Language with Solid IDE Support

Kotlin, created in 2011 and officially released in 2016, has undergone alpha and beta improvements. Developers were already using Kotlin in projects before the release, benefiting from its proven features and top-notch IDE support, including compatibility with Java features.

Swift Android App Development

Kotlin seamlessly integrates with Android Studio, ensuring a fast setup in less than 10 minutes, even for beginners. Android 2.3 requires a plugin, while Android 3.0 integrates with Kotlin, allowing for smooth debugging and compatibility with Java features.

Simplified Code and Easy Reading

Developers often choose Kotlin over Java because it makes code shorter and more readable. Compared to Java, which can be repetitive, Kotlin’s brevity minimizes errors and speeds up coding.

Open-Source Since 2012

JetBrains declared Kotlin an open-source project in 2012. Being open-source means developers receive consistent support from the Kotlin Slack team, ensuring high-quality development.

Reliable Development Process of Kotlin

Kotlin was created to meet specific requirements outlined by its parent company, JetBrains. The company, which uses Kotlin in its own products, remains committed to its ongoing development. With support from Google, these two innovative companies collaborate to enhance Kotlin, evident in features like Kotlin Android Extensions and libraries like Anko. JetBrains’ continuous efforts showcase their dedication to advancing Kotlin for Android app development.

Moving Beyond Obsolescence for Developers

Embracing Kotlin reveals its modern approach, fostering efficiency and creativity among developers. In contrast to the aging Java, Kotlin offers a contemporary language that encourages versatile thinking. Adopting Kotlin not only enhances a developer’s skill set but also adds significant value to their profile.

Safety and Reliability Advancements over Java

Kotlin emerges as a safer alternative to Java, addressing issues inherent in Java’s design. Notably, Kotlin eliminates null-related errors, a common challenge in Java development. In Kotlin, nulls must be explicitly stated, preventing Null Pointer Exceptions. This safety feature enhances code reliability, saving time and resources previously spent on debugging Java projects.

Ease of Learning

Kotlin, being Java-compatible, proves to be an accessible language for learners. Its code is easily understandable, resembling the familiarity of Java for developers. While incorporating innovative elements, Kotlin simplifies the learning curve, empowering developers to be more creative and effective problem solvers.

Boosted Productivity and Faster Development

Kotlin’s adoption yields increased productivity and accelerated development. Its expressive syntax reduces boilerplate code, facilitating code comprehension. Safety features, such as null safety, diminish the occurrence of bugs, contributing to faster debugging and maintenance. Interoperability with Java enables seamless integration of existing code, further propelling development speed.


Difficulties and Considerations when Adopting Kotlin

Switching to Kotlin, a new programming language, poses challenges and considerations.

Transition from Java

If you’re used to Java, moving to Kotlin may be tough due to the differing syntax. Becoming familiar with Kotlin’s expressive syntax and functional programming concepts is essential. While Kotlin’s type inference can make code appear more concise, be cautious as it might increase the app’s binary size. This can be a hurdle for developers working with resource-limited devices or managing extensive codebases.

Codebase Migration

Shifting an existing Java codebase to Kotlin is intricate and time-consuming. Automated tools exist, but they may not always provide accurate results, making manual conversion error-prone. Effort and thorough testing are crucial to ensure the migrated code functions as expected. Additionally, null safety in Kotlin might require substantial adjustments since, in Java, null is acceptable, while in Kotlin, it’s considered a problem.

Third-Party Integration

Integrating Kotlin with libraries and frameworks not explicitly designed for it can be challenging. Using Java versions of these tools may add complexity. When interfacing with Java libraries, caution is needed with Kotlin’s null safety features, as issues may arise if the library isn’t built to handle null values. Rigorous testing of the integrated code is necessary to guarantee proper functionality.

Why Companies Prefer Using Kotlin

Choosing a new tool for a business is a carefully considered decision. Businesses opt for new tools to address existing problems more efficiently. Lately, many businesses have shown their support in Kotlin for Android app development. Here’s why:

Support from Google

With Google’s official backing, Kotlin expands the Android app development ecosystem, offering improved technical support and business capabilities. This support fosters knowledge-sharing within the community of Android app developers.

Easy Migration

Businesses can seamlessly transition to Kotlin, simplifying the entire process. The language’s user-friendly nature and straightforward learning curve eliminate adoption hurdles.

Cost-Effective Development & Maintenance

Kotlin’s future in Android app development looks promising. Its cost-effective development and maintenance contribute significantly to a business’s bottom line. With excellent language features, brevity, and a commitment to quality, Kotlin ensures quicker project completion.


Top Companies Using Kotlin

Kotlin is becoming a lasting presence, and businesses need to be aware of it if they haven’t already. Picking the right technology stack for Android app development is a crucial step for any business. Kotlin stands out as an effective choice because of its speed, accuracy, flexibility, and stability in tackling complex business challenges.

Many influential organizations, such as Prezi, Basecamp, Amazon Web Services, Pinterest, Coursera, Netflix, Uber, and more, have embraced Kotlin. Developers at Expedia, Flipboard, Square, and others predominantly use Kotlin for Android app development projects.

Is Kotlin the Future of Android Development?

Kotlin is getting really popular for creating Android apps. Ever since Google said it supported Kotlin in 2017, more and more people have been using it for Android development. It’s now one of the top choices for programming Android apps.

Kotlin is better than Java because it has a nicer way of writing code and more safety features. And the cool thing is, you can still use your old Java code and libraries with Kotlin. Google even says Kotlin is the best language for making Android apps. So, if you’re thinking of developing for Android, Kotlin is a great pick, and it looks like it’s going to get even more popular.

Why Xcelore Chooses Kotlin for Android App Development

Xcelore has chosen Kotlin as the language for developing Android apps in its projects, and there are several reasons behind this decision.

  • Kotlin is an efficient language with a variety of features that make it well-suited for Android app development. It’s a mature language supported by high-quality IDEs, and the overall support within the Kotlin ecosystem adds significant value.
  • One key advantage is that Kotlin allows for more productive development. Its powerful and clean syntax reduces the amount of code compared to Java, resulting in fewer errors and faster completion of tasks. This not only benefits developers but also translates to more stable and high-quality apps for our clients, delivered in a shorter timeframe.
  • Cost efficiency is another factor influencing our choice of Kotlin. We’ve learned from the past, that sticking to outdated languages like Objective-C led to increased maintenance costs. We want to avoid a similar situation with Java for Android projects, ensuring that our clients don’t face escalating expenses in the long run.

Ultimately, our decision to embrace Kotlin is reinforced by its alignment with the needs of the developer community over the years. It’s an intuitive language that focuses on the requirements of developers while actively contributing to the evolution of the Android ecosystem. This is why Xcelore widely employs Kotlin in its Android projects.


Q. Is Kotlin easy for Java developers to pick up?

  • Yes, Kotlin is generally easy for developers already familiar with Java. The syntax is similar, and many concepts overlap. While Kotlin introduces some new features like higher-order functions and the Kotlin Standard Library, Java-savvy developers can quickly adapt.

Q. Can Kotlin be used for platforms other than Android?

  • Absolutely! While Kotlin is designed for Android, it’s versatile enough for iOS, web, and desktop app development. Its strong support for cross-platform development has made it a popular choice among developers creating applications that run on various platforms.

Q. How does the Android ecosystem back Kotlin?

  • Kotlin enjoys robust support in the Android ecosystem. Google officially endorses it as the preferred language for Android app development, and it’s the default in Android Studio. With widespread acceptance in the Android community, developers can access abundant resources to learn and leverage the language.

Q. What's the future outlook in Kotlin for Android app development industry?

  • Kotlin’s future in the Android app development industry looks promising. It has gained traction among major companies, backed by strong support from Google and the Android community. As its popularity continues to rise, Kotlin is poised to become the dominant language for Android app development in the long run.

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