If you’ve ever used Material UI for React and tried to test it or override certain classes, you might have come across the issue of your snapshots failing because of className mismatch or noticing that the classNames you see on local/dev server is different from what you see in another environment.
Although there are workarounds to this problem (re-rendering your snapshot, ignoring it, declaring things as important for the root className) the fix is pretty simple.
If you are undertaking a mobile app development for your start-up or enterprise, you are likely wondering whether to use React Native. As a popular development framework, React Native helps you to develop near-native mobile apps. However, you are probably also wondering how close you can get to a native app by using React Native. How native is React Native?
In the article, we discuss the similarities between native mobile development and development using React Native. We also touch upon where they differ and how to bridge the gaps. Read on.
Let’s briefly set the context first. We will briefly touch upon what React Native is and how it differs from earlier hybrid frameworks.
Although relatively new, React Native has acquired a high degree of popularity. The “Stack Overflow Developer Survey 2019” report identifies it as the 8th most loved framework. Facebook, Walmart, and Bloomberg are some of the top companies that use React Native.
The popularity of React Native comes from its advantages. Some of its advantages are as follows:
Are you wondering whether React Native is just another of those hybrid frameworks like Ionic or Cordova? It’s not! React Native is fundamentally different from these earlier hybrid frameworks.
React Native is very close to native. Consider the following aspects as described on the React Native website:
Due to these factors, React Native offers many more advantages compared to those earlier hybrid frameworks. We now review them.
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Does this sound like you? Because this is exactly how I felt when I started learning React. All I wanted to do was set up a simple React app, and I was getting very confused. I thought React had a fairly difficult learning curve, and I was feeling pretty overwhelmed.
This is what I would have liked to have known before I began writing a single line of React code:
First, let’s nail out the basics. Before you start diving into React, you should probably have at least a little experience with each of the following:
- NodeJS + NPM
React has 4 ideas that are key to getting started learning with React.
If you create a component for a share button, you can reuse that component to build other share buttons, or reuse it across multiple different kinds of articles. This is the idea with React. You are building components that then can be used and reused to build bigger components.
Props is short for properties. Properties are how you pass information unidirectionally from parent to child components. I like to think of them as property attributes or parameters, since it is conceptually similar to passing arguments into a function, and syntactically similar to HTML attributes. Look at the example used previously. If this were a React component, the props would be what you are passing in as “src”, “alt”, “height”, and “width”. You can also pass in callback functions for the child to execute such as “onClick”.
Many React components will be stateful components. State is exactly what it sounds like. It’s the internal state of your component. Think of a checkbox on a web page. It can either be checked or unchecked. When the user clicks on the checkbox, it will check the box if it is unchecked, and when the user clicks it again it will uncheck the box. The checkbox is an example of a stateful component. In this example, the internal state of the checkbox would be a boolean that would either be checked true or checked false.
While many components have state, some are stateless. Just because lots of components have state doesn’t mean that every component needs to be stateful. Sometimes it makes sense to omit state from a component. Think of an image html tag.
**<img src=”smiley.gif” alt=”Smiley face” height=”42" width=”42">**
If this image tag would be an example of a stateless component. You are passing in parameters, but the image tag itself does not have an internal state that it needs to manage itself.
React is much easier to understand if you have a basic idea behind the React component lifecycle. The React lifecycle describes when and how a component should mount, render, update, and unmount in the DOM. React has lifecycle hooks (React component methods) that help you manage state, props, and work with the lifecycle flow.
**React component lifecycle has three categories **— Mounting, Updating and Unmounting.
2. The componentDidMount() happens as soon as your component is mounted.
3. The componentDidUpdate_() _happens as soon as the updating happens.
4. The componentWillUnmount_() _happens just before the component unmounts and is destroyed.
5. The shouldComponentUpdate_() _can be used rarely.
6.The two new lifecycle methods are getDerivedStateFromProps() and getSnapshotBeforeUpdate().
Note: You can read more about React’s lifecycle here
These are only the basics to get started.
#react-for-beginner #react-lifecycle #react #react-components #ui
UI design for native Android and iOS applications can be complex and demanding. However, the importance of sleek and responsive UI cannot be overstated. With the introduction of the Material Design concept in 2014, Google established a standard for mobile and web development that makes life easier for developers and UI designers.
As one of the most popular frameworks for building native Android and iOS applications, React Native ships with a lot of libraries for Material Design. With over 46,000 downloads per week, Paper is the most popular React Native library based entirely on Material UI. A fast library, Paper makes the UI design process easy, seamless and efficient.
Here is a synopsis of what we will cover:
Let’s get started.
If you don’t have the expo CLI, install it globally in your computer using the following command:
npm install -g expo-cli
Then, install a blank React Native (expo) project:
expo init --template bare-minimum
Open the project in your favorite editor. To open it in Visual Studio Code, navigate to the project root and enter the following command:
The project structure will look like this:
#react native #react #material ui
We’re going to learn how to use the Material UI Grid system using the Material UI react library. The grid system can be used to create fluid responsive elements for different screen sizes.
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#react #material ui #ui
Due to its popularity, many UI libraries and kits have built custom React components to facilitate easy integration and improve the developer experience.
There are many React UI libraries and kits smoothly running today. In this article, we shall highlight the ten most powerful libraries. These libraries were chosen based on the Github stars and usage plus the support community on Stackoverflow.
Note: All the statistics used in this article were extracted in August 2020 and may probably change with time.
Material UI is based on Google’s Material Design. It provides easier and faster React components built with Material Design.