Caching images in React Native – React Native Training – Medium

  • The example app using images from Unsplash.This is the result of opening and closing the app five times.
  • The app downloads the images every time it launches, which is very much undesired and poor design.
  • Not only does this result in exponential data usage, which is an unpleasant surprise for your customers, it also makes your apps reliant on network connection every time external images are shown.
  • To provide our apps with minimal data usage, faster reponse time and improved offline capabilities, let us take a look at how we can cache external images.
  • import { CachedImage } from ‘react-native-cached-image’;In my example app, I set up a FlatList to show the images.

I can still recall the moment where I realised something was terribly wrong.
I was on the verge of publishing my first app. I had gone over everything and I felt I had my bases covered. It was then…
Continue reading “Caching images in React Native – React Native Training – Medium”

How To Connect React Native Application With Laravel API Tutorial

How To Connect #reactnative Application With Laravel API Tutorial

  • In this application tutorial, I have described How To Connect React Native Application With Laravel API Tutorial From Scratch.
  • You can access our Laravel API at this need to display the coins data into the Coin screen.
  • So I have written async fetching the data, I am changing the state of coins with the filled array data and pass that array to the new component that is a CoinList.js file.
  • So this is how you can perform a network request in the React Native mobile application.
  • Finally,  How To Connect React Native Application With Laravel API Tutorial is over.

How To Connect React Native Application With Laravel API Tutorial. We will use React Native as a Frontend of our mobile application, and we will fetch the data from the Laravel backend server. MySQL will be the database. It is just a simple mobile application that connects to the backend server.
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Checklist to Deploy React Native to Production – The React Native Log – Medium

Checklist to Deploy React Native to Production -

  • Checklist to Deploy React Native to ProductionMany React Native developers came to mobile development from a background of web development (like me).
  • That’s one of the reasons React Native is appealing — it’s so much like the web.But because of this we often have a gap of knowledge, namely around bringing the app to production.
  • The web has its challenges but mobile development has a different set of challenges — challenges we may not necessarily be familiar with.I know this is something I struggled with so I wanted to put together a quick checklist of tasks you can use to successfully bring your React Native app to…
  • 🤑AndroidCreate Google Play Developer Account ($25)Add app icons to your app (I typically use this tool to generate all necessary sizes)Add splash screens to your app (I typically use this tool to generate all necessary sizes)Update the package name of your applicationGenerate the Signed Production APKCreate app in the Google…
  • Uploading a new version of your app isn’t quite as fast as it is on the web so you really want to make sure your app isn’t going to crash 😅Add basic offline support.

Many React Native developers came to mobile development from a background of web development (like me). That’s one of the reasons React Native is appealing — it’s so much like the web. But because of…
Continue reading “Checklist to Deploy React Native to Production – The React Native Log – Medium”

Using JSX and React #React #reactjs #javascript #Framework #programming

Using JSX and React  #React #reactjs #javascript #Framework #programming

  • Form creation is easy with JSX and sub-components, for example: – – To make this work, you must create the sub-components as attributes of the main component: – – To use some JavaScript to create a result for use in an attribute value, React just needs you to wrap it…
  • _disconnectFrom(userId); self.emit(events.DISCONNECT, userId); console.log(‘User disconnected’, userId); }); }); console.log(‘Connecting with username’, username); this.peer = new Peer(username, { host: location.hostname, port: 9000, path: ‘/chat’ }); this.peer.on(‘open’, function (userId) { self.setUsername(userId); }); this.peer.on(‘connection’, function (conn) { self.
  • First we use to establish signalling of a new user connected via the as so: – – js ChatServer.prototype.connect = function (username) { var self = this; this.setUsername(username); this.socket = io(); this.socket.on(‘connect’, function () { self.socket.on(events.CONNECT, function (userId) { if (userId === self.getUsername()) { return; } self.
  • _connectTo(userId); self.emit(events.CONNECT, userId); console.log(‘User connected’, userId); }); – – Then, to connect to the PeerServer, we use the following: – – We then listen for events via the method: – – We also have our JSX inside components in the directory.
  • Now it’s as simple as pushing your code to heroku: – – Once the push is finished, you will be able to start your web service with the following: – – Now just visit the URL provided, or as a shortcut use the command as so: – – You’ve learned…

What You’ll Be CreatingJSX is similar to a mix of XML and HTML. You use JSX within React code to easily create components for your apps. JSX transforms into JavaScript when React compiles the…
Continue reading “Using JSX and React #React #reactjs #javascript #Framework #programming”

Feature toggle in @reactjs app with @_ericelliott #javascript

Feature toggle in @reactjs app with @_ericelliott  #javascript

  • How is the Curriculum Unique?
  • The curriculum was designed and refined by  Eric Elliott   and  JS_Cheerleader   over a period of several years, engaging actively with students and learning better ways to teach tricky topics like functional programming, category theory, and component composition.
  • We’ve logged thousands of hours of 1:1 student training to distill the curriculum plan for the best student experience.
  • You’ll start out learning the foundations of functional programming and composition which are often glossed over in other resources.
  • Several graduates from ivy-league university CS programs and dev bootcamps have enrolled in our curriculum program and tell us they learned more with us than from everything else combined.

DevAnywhere is a remote mentorship subscription program consisting of live video lectures, 1:1 mentorship, and lifetime access to an archive of video, books, and lesson content.
Continue reading “Feature toggle in @reactjs app with @_ericelliott #javascript”

React Native Performance Profiling – Adam Stanford – Medium

  • React Native Performance ProfilingOver the past six months at WeDo, we have been working on improving the performance our React Native app.
  • */)Tracking Unnecessary RendersThis might easily be the biggest issue we faced for most of our react native performance issues.
  • You can then either log this, display it in your view, or like we did and use React Native Debugger and inspect our components directly.connect(stateToProps, dispatchToProps, null, {renderCountProp: will give you insight into how many times your view is rendering.
  • In our case we use Reselect as much as we can, so for us this wasn’t an issue as new objects are never returned unless the data within them has changed.Redux Level PerformanceMost of our performance issues were not on the Redux layer of our app.
  • Recently tracking components and views performance within a shared spreadsheet helps us track performance for better or worse.

Over the past six months at WeDo, we have been working on improving the performance our React Native app. With any performance issues, profiling is the first step. In this article I will cover what…
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Login with Facebook and Google using ReactJS and RESTful APIs

Login with Facebook and Google using #ReactJS and RESTful APIs

  • There are a number of advantages to implementing social login in your web applications.
  • First of all, it best secures the user credentials, the user can use a single login for accessing multiple sites, this can automatically access the user details for further use, and many such.
  • This article is about how to implement the social login with Facebook and Google using ReactJS and RESTful API.
  • This social login helps to store social data of the logged in user into the database.
  • So that it provides you valid user data like email, name, and others.

How to implement Login with Facebook and Google using ReactJS and RESTful APIs
Continue reading “Login with Facebook and Google using ReactJS and RESTful APIs”

Login with Facebook and Google using ReactJS and RESTful APIs

Login with Facebook and Google using #ReactJS and RESTful APIs

  • There are a number of advantages to implementing social login in your web applications.
  • First of all, it best secures the user credentials, the user can use a single login for accessing multiple sites, this can automatically access the user details for further use, and many such.
  • This article is about how to implement the social login with Facebook and Google using ReactJS and RESTful API.
  • This social login helps to store social data of the logged in user into the database.
  • So that it provides you valid user data like email, name, and others.

How to implement Login with Facebook and Google using ReactJS and RESTful APIs
Continue reading “Login with Facebook and Google using ReactJS and RESTful APIs”

Using JSX and React #React #reactjs #javascript #Framework #programming

Using JSX and React  #React #reactjs #javascript #Framework #programming

  • Form creation is easy with JSX and sub-components, for example: – – To make this work, you must create the sub-components as attributes of the main component: – – To use some JavaScript to create a result for use in an attribute value, React just needs you to wrap it…
  • _disconnectFrom(userId); self.emit(events.DISCONNECT, userId); console.log(‘User disconnected’, userId); }); }); console.log(‘Connecting with username’, username); this.peer = new Peer(username, { host: location.hostname, port: 9000, path: ‘/chat’ }); this.peer.on(‘open’, function (userId) { self.setUsername(userId); }); this.peer.on(‘connection’, function (conn) { self.
  • First we use to establish signalling of a new user connected via the as so: – – js ChatServer.prototype.connect = function (username) { var self = this; this.setUsername(username); this.socket = io(); this.socket.on(‘connect’, function () { self.socket.on(events.CONNECT, function (userId) { if (userId === self.getUsername()) { return; } self.
  • _connectTo(userId); self.emit(events.CONNECT, userId); console.log(‘User connected’, userId); }); – – Then, to connect to the PeerServer, we use the following: – – We then listen for events via the method: – – We also have our JSX inside components in the directory.
  • Now it’s as simple as pushing your code to heroku: – – Once the push is finished, you will be able to start your web service with the following: – – Now just visit the URL provided, or as a shortcut use the command as so: – – You’ve learned…

What You’ll Be CreatingJSX is similar to a mix of XML and HTML. You use JSX within React code to easily create components for your apps. JSX transforms into JavaScript when React compiles the…
Continue reading “Using JSX and React #React #reactjs #javascript #Framework #programming”

Login with Facebook and Google using ReactJS and RESTful APIs

Login with Facebook and Google using #ReactJS and RESTful APIs

  • There are a number of advantages to implementing social login in your web applications.
  • First of all, it best secures the user credentials, the user can use a single login for accessing multiple sites, this can automatically access the user details for further use, and many such.
  • This article is about how to implement the social login with Facebook and Google using ReactJS and RESTful API.
  • This social login helps to store social data of the logged in user into the database.
  • So that it provides you valid user data like email, name, and others.

How to implement Login with Facebook and Google using ReactJS and RESTful APIs
Continue reading “Login with Facebook and Google using ReactJS and RESTful APIs”