The idea behind React Native can be best described by “Learn once, write anywhere“, enabling developers to use the same development approach for both desktop/browser and mobile apps. It provides the feature to reuse the code across the web and on mobile. Developers won’t have to build the different apps across each operating system as it allows more efficient code sharing across iOS, Android, and the Web, without sacrificing the end user’s experience or application quality leading to faster mobile development. If one wants to develop mobile applications for more than just one platform, React Native is the best option.
Instead of recompiling, the app can be reloaded instantly with Hot Reloading while retaining the application state.
React Native uses the Flexbox Layout for arranging the elements in a user interface. It extends the core react library as it has the following predefined core components in addition :
- The View which defines the layout and one can define the styles in it.
- The Image core component is used to display several types of images.
- The Text component is used to display text irrespective of the platform on which the code is running.
The Internet of things (IOT) is the collection of physical devices like mobile phones, microwave, television etc. embedded with electronics, sensors, and actuators along with connectivity which allows them to connect and exchange information. Devices and objects with inbuilt sensors are connected to an Internet of Things platform, which integrates knowledge from the various devices and applies to generate smart decision based on real-time information that helps to save a lot of time, energy and money.
React – IOT
React – Augmented reality (AR) & Virtual reality (VR)
Augmented reality and virtual reality are the two confusing terms which have changed the ways to look around the world by the means of technology.
Augmented reality (AR) is a technology that uses an existing reality and adds a meaning to it by giving the ability to the user to interact it with by the means of superimposed computer-generated images to make it feel more, whereas Virtual reality (VR) is an artificial, computer-generated scenario that simulates a realistic experience. VR provides an interactive 3D-world that you can explore and feel like being there, both mentally and physically.
The data is collected by mobile device’s inbuilt sensors such as the camera, accelerometer, GPS etc. The essential operating principles of augmented reality applications are based on location capturing and the transformation of data captured whereas for virtual reality, these are 3D images that appear to be life-sized from the perspective of the user and the ability to track a user’s motions and correspondingly adjust the images on the user’s display.
The camera images are continuously recorded in each frame. VR apps need to be rendered at 60-90 frames per second or even faster because lower frame-rate may lead to a headache. These images are then analyzed and the application gets data of each pre-installed marker in a frame with respect to these images especially turn and location. This data is further utilized for the rendering purpose over the real image captured by the camera to create 3D models.
React VR does not require a VR headset to run. It can also be used in the browser or a mobile phone to create interactive 360-degree experiences.