Reactjs is front end library developed by Facebook. It's used for handling view layer for web and mobile apps. ReactJS allows us to create reusable UI components. It is currently one of the most popular JavaScript libraries and it has strong foundation and large community behind it.
React Nativeis a mobile framework that compiles to native app components, allowing you to build native mobile applications (iOS, Android, and Windows) in JavaScript that allows you to use ReactJS to build your components, and implements ReactJS under the hood.
Views and mobile development in react native
In Android and iOS development, a view is the basic building block of UI: a small rectangular element on the screen which can be used to display text, images, or respond to user input. Even the smallest visual elements of an app, like a line of text or a button, are kinds of views. Some kinds of views can contain other views. It’s views all the way down!
Core Components in react native
React Native has many Core Components for everything from form controls to activity indicators. You can find them all documented in the API section. You will mostly work with the following Core Components:
| REACT NATIVE UI COMPONENT | ANDROID VIEW | IOS VIEW | WEB ANALOG | DESCRIPTION |
|---|---|---|---|---|
<View> | <ViewGroup> | <UIView> | A non-scrollling <div> | A container that supports layout with flexbox, style, some touch handling, and accessibility controls |
<Text> | <TextView> | <UITextView> | <p> | Displays, styles, and nests strings of text and even handles touch events |
<Image> | <ImageView> | <UIImageView> | <img> | Displays different types of images |
<ScrollView> | <ScrollView> | <UIScrollView> | <div> | A generic scrolling container that can contain multiple components and views |
<TextInput> | <EditText> | <UITextField> | <input type="text"> | Allows the user to enter text |
In the next section, you will start combining these Core Components to learn about how React works. Have a play with them here now!
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