Nathan Walker, Eduardo Speroni - NativeScript. Use Native API right in JS
Jul 29, 2024
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Nathan Walker and Eduardo Speroni, key contributors to the NativeScript team, share their insights on harnessing native platform APIs within JavaScript. They delve into the evolution of NativeScript and its unique bridging capabilities that set it apart from other frameworks. Performance aspects on Android and iOS are contrasted, alongside a discussion on advancements in NativeScript engines. The potential for NativeScript to expand into desktop environments is explored, highlighting its adaptability and community-driven innovations.
NativeScript allows developers to use native platform APIs directly in JavaScript, offering a more seamless integration than frameworks like React Native.
The framework enhances performance through efficient binding generation and memory management, providing faster runtime speed with minimal binary sizes.
Supporting major web frameworks, NativeScript enables developers to create native apps while leveraging community plugins and ensuring compatibility with preferred libraries.
Deep dives
Overview of NativeScript
NativeScript is designed to bring native platform development capabilities to JavaScript, allowing developers to employ native APIs directly from JavaScript code. Unlike other frameworks such as React Native, which abstracts the native components, NativeScript allows the use of platform technologies like Kotlin, Swift, and Objective-C seamlessly within a JavaScript environment. This means developers can implement constructs typical in native languages, like delegates in Objective-C, within their JavaScript applications. The integration of web-like approaches using CSS and templating also facilitates familiar development practices for web developers transitioning to mobile app development.
Performance and Efficient Design
The performance aspect of NativeScript focuses on efficient binding generation at build time, producing a minimal binary file that enhances runtime speed by having necessary functions preloaded in memory. This approach aims to minimize the overhead typically associated with crossing boundaries between JavaScript and native code, addressing concerns regarding slower native bridging in other similar frameworks. Moreover, NativeScript employs techniques such as shared array buffers to optimize memory management during operations, allowing data to be accessed without unnecessary copying. The engineering practices behind NativeScript ensure that while some overhead exists, it is manageable and designed for high performance across various applications.
Framework Integration and Compatibility
NativeScript supports multiple web frameworks such as Angular, React, and Vue, enabling developers to use their preferred libraries while creating native applications. The architecture is designed to allow smooth integration, making it possible for developers to render native views without the need for extensive customization or additional coding layers. This compatibility is particularly beneficial for leveraging community-generated plugins from other frameworks, enhancing existing NativeScript functionalities and enabling a rich ecosystem for development. Additionally, the ability to manage UI components and layouts directly in JavaScript ensures flexibility and ease of use, aligning with native platform behaviors.
Emerging Technologies and Future Plans
Discussions around NativeScript's future are centered on improving runtimes and supporting additional platforms, including a planned focus on desktop compatibility with frameworks like Deno and potentially Windows. As part of this evolution, the introduction of NativeScript Foundation aims to streamline and enhance core functionalities while targeting performance optimization through more robust APIs and access to platform-specific capabilities. The intention is to create a more adaptable framework that supports not only traditional mobile apps but also future-oriented developments across different environments. Enhancements such as better bundling support and interoperability with new JavaScript engines underscore a commitment to maintaining relevance in a rapidly changing technology landscape.
Real-World Application Showcase
A notable use case for NativeScript is the development of a lighting console application designed to control various lighting setups during performances, leveraging real-time data feeds to manage aesthetic effects. This application showcases NativeScript's capacity to handle significant data throughput while maintaining a responsive user experience through direct interactions with platform APIs. The app's integration with essential features like MIDI demonstrates the practical benefits of NativeScript, allowing developers to implement functionality without depending on extensive plugins. Through collaborative projects like this, NativeScript continues to highlight its versatility and suitability for complex real-world applications.
This week we're joined by Nathan Walker and Eduardo Speroni, two members of the NativeScript team. NativeScript is a framework that enables you to use native platform APIs in JavaScript. We talk about the history of NativeScript, the current state of the project, and the future of cross-platform mobile development.