Why do you expect Native reactions for your mobile app?
React has proven incredibly popular, as it turns out, both on my own projects and with many others across the world, including major companies like Netflix. And now the platform has been put onto the mobile with React Local. React Native is a great choice to create powerful iOS and Android apps that feel at home on their respective platforms, all while building on any previous experience in web development.
This Button part has two pieces of input data: onPress, which is a callback function for when pressing the button; and text, which is the string to be displayed within the button. The XML-like structure that the render function returns is called JSX, which is syntactic sugar for calls to the function Respond. And TouchableOpacity and Text are existing components included with Native React. Now that this Button feature has been developed, with consistent actions and styling, it can be used several times in the application.
Though this is a simple example, it shows how a piece by piece Respond app is designed. Continuing in this way, you can build components which reflect that abstraction layers. You can, for example, build a ButtonGroup component that contains several buttons connected to it. And building on that, you can write components which represent whole screens. Also as the device grows considerably larger, components at each stage remain understandable and manageably sized.
The best feature of react when it was initially released for the web was to render the view layer of your device a pure state production. As a developer, this means that you simply decide what your view will look like based on input data, instead of making imperative adjustments to view components (for example, programmatically modifying the text or color of a button by calling a function on it), and Respond smartly makes the adjustments for you when the state changes.
This change in thought could make building UIs dramatically simpler. We've all used apps where the UI reaches a weird unintended state after taking a direction the creator wasn't looking for. With Respond, these bugs are much easier to monitor. You don't have to care as much about the user's journey through the device as you do, instead concentrate on making sure that your view statements can accommodate all possible shapes for the state of your app. That's a lot easier problem to tackle-and check for. The machine also understands it more quickly, and changes to the static analysis and type systems would only make it easier to spot such glitches.
Native component definitions look and function pretty much like web component reaction, but target native UI widgets instead of HTML. So you can use a < View > instead of using a < div > (which is converted to a native UIView on iOS, and on Ios, android.view). As data changes for your components, React Native will determine what needs to be modified in your view, and will make the required calls to whatever native UI widgets are displayed.
Many software frameworks promise to let you make a great Android and iOS device, but the product always ends up somewhere in the middle without feeling very native to either one. By supporting the native platforms but also allowing the app to share much of its codebase between platforms, React Native allows developers to create amazing native apps that their customers would love, without the increase in budget building that might require two separate apps.
Some of the biggest benefits of React is how open it is to even those who are unfamiliar with it. Most frameworks allow you to study a long list of terms that are only useful within that context, while ignoring the basics of the language. Reacting does its very best to do the opposite. Take the difference between rendering a portion of a friends list in React Native vs Ionic (AngularJS) as an example.
With Ionic, you use the command ngRepeat. Let's assume we have an array of friends with the following fields each: first name, last name and is online. Yet we just want to view those friends who are online right now. Here's our checker:
This code snippet poses some immediate concerns if you aren't familiar with Ionic / AngularJS. What's the$scope? Which is Filter Syntax? And how can I add more behaviour, like sorting the friends list?
With Respond Native, using the built-in filter and map functions, you make use of your existing language fundamentals awareness.
Some libraries are especially suitable for use with React Native, thanks to its declarative views. One that I would be remiss in not considering is redux. Described as a "predictable state container," redux is a great library to control the state of your application. Redux is highly testable, and allows small functions to write which are clear about what data they modify. If that way your state changes are written, your app can take advantage of powerful features, such as global undo / redo and hot reload.
I had a lot of fun learning and developing with React Native, between the ease of creation, the quality of the apps developed with it, and the richness of the platform and ecosystem.
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This article is contributed by Ujjainee. She is currently pursuing a Bachelor of Technology in Computer Science . She likes most about Computer Engineering is that it allows her to learn and be creative. Also, She believes in sharing knowledge hence is very fond of writing technical contents for the same. Coding, analyzing and blogging are things which She can keep on doing!!