React Native Native Modules Android

The design will be provided by me and fully documented, but implemented by you and I will also do the store publishing, so source code is expected. json file to the root of your app (next to package. You may have tried to use our quick start guide to setup your project for Storybook. Let's say we want to build a native module that gets you the device name. Version 2 of Production Ready React Native is here to help you get your app into the app store just like it has helped hundreds of other developers already. NativeBase is an open source framework to build React Native apps over a single JavaScript codebase for Android and iOS NativeBase | Essential cross-platform UI components for React Native NativeBase. In cases where this deviates from Android conventions, we plan to tend towards no difference between the app for now. Text content is released under Creative Commons BY-SA. React Native Firebase. Just npm install and react-native link and you are good to go. js, in module For Android you will need to write a. React Native Firebase is the officially recommended collection of packages that brings React Native support for all Firebase services on both Android and iOS apps. Generally these are UI-related, like "the user touched this box". Native modules are usually distributed as npm packages, apart from the typical javascript files and resources they will contain an Android library project. Before we continue, remember that if you want to write code for Android, you need to open the android project in Android Studio. by the time you finish your app, there might be new tools and new versions of everything). js it will disable the autolink for that. Initialize the project using CRNWA; Make sure everything works: Android, iOS and Web. Supported React Native platforms. reactnative) submitted 2 years ago by forgotmyreddits I'm developing an application and I want to use React Native for some parts of the app, namely, the splash screen and main menu. Recently, React Native was released for iOS development and in the past year React Native was released for Android development. And for the tweets which are interesting, the user has the option to retweet with a message. Let's say we want to build a native module that gets you the device name. Install Xcode from the Mac App Store. However, because React Native is not a browser environment, we may find it difficult utilizing code that relies on DOM. Next locate the android folder off of the project root. (Optional) Add a branch. I argued that it is just another cross-platform framework which will never. js in your project directory. The design will be provided by me and fully documented, but implemented by you and I will also do the store publishing, so source code is expected. Step 2: Create the packager. The first command downloads the tealium-react-native package and install it to your project. Getting Started. Whenever you want to write data to the disk, make a network request, or access any other native resource (like the camera), your code needs to call a native module. It is just another Native Module that wraps an Android Service which starts the JavaScript engine where you can run background tasks written in JavaScript. Eject it so that iOS and Android folders show up. Flutter vs React Native - Features and API Components Choosing a cross-platform approach to develop an application comes with a few compromises, the biggest one being no direct access to native features like Bluetooth. After the new terminal window open, just go to the project folder then run this command. React Native invokes native modules methods on a separate serial GCD queue, but this is an implementation detail and might change. Get answers to your problems. React Native was first released in 2015 by Facebook. 61 for the initial project. The second command links the native dependencies within the module to your main React Native app so that it builds against the module. *FREE* shipping on qualifying offers. Getting started with React Native will help you to know more about the way you can make a React Native project. Ok! Project created! Inside the React Native project, we have an Android project and a iOS project. The battle of React Native vs Native has outgrown since the day making your presence on both Android and iOS platforms has become the need of the hour. A guide to writing native modules in a React Native application. Let us now create a new file: ModalExample. It is going to contain the style attributes that will change when. Over the years React Native has grown substantially. For React Native >= v0. Install Xcode Command Line. React Native provides ability to write both Android and iOS applications together with a majority of JavaScript code shared between them. When using React Native to write mobile apps, JavaScript is the primary programming language. That's probably the reason why Instagram, AirBnB, Skype and many other global companies are using it to build their mobile apps!. What’s more, there is a lot of effort put into platform parity through single components instead of having separate iOS and Android components for functionality that is very similar. Where do I start? I am more inclined to go towards the native Android side first. Swift Modules for React Native January 6, 2016 2018-07-10T15:44:07+0000 JavaScript React Native is an Objective-C application framework that bridges JavaScript applications running in the JSCore JavaScript engine to iOS and Android native APIs. Writing a native module for Android involves the following steps: Create a ReactPackage, a wrapper object grouping many modules (both native and JavaScript) together, Create a Java class extending ReactContextBaseJavaModule that implements Override the getName method in the aforementioned. After dropping that folder into your project there will be a pop-up window in which you will specify to Create groups. We'll learn what it means to build a robust application architecture that will stay with you regardless of change in the tooling or ecosystem churn (i. mm file and directly use C++. But you can also disable autolinking for unsupported library. React Native Interview Questions. The ability to access standard Android and iOS libraries and frameworks is not a nice-to-have feature, it's absolutely necessary. Get a practical introduction to React Native, the JavaScript framework for writing and deploying fully featured mobile apps that render natively. x, link your native module to libGLESv3. wix/react-native-navigation), you should follow this separate guide to get gesture handler library set up on Android. How to use Native Modules in React Native + Android - Hybrid Apps Step 1 : Create the module. I am trying to implement a React Native Android Module for a Honeywell CT50 device with no prior experience. react-native-chart ★1464 - React-native-chart is a simple module for adding line charts, area charts, or bar charts to your React Native app. I’ve built multiple apps, reached over 1. We hoped that these native bridged modules would mature and become less important over time, but this has turned out to not be the case. React Native vs Xamarin vs Ionic: Market and Community. I will link Dynamsoft Barcode Reader SDK, which released as an AAR bundle file, to a React Native Barcode project and write some Java code as the bridge between JavaScript code and the library. Since the React Native community is smaller than iOS/Android ones, it supports less third-party components (APIs and libraries) that are often necessary for development. /node_modules/react-native-sqlite/sqlite3 from. You’re busy. but in some rare cases react native does not have a module for that. I was very skeptical. We just need to hook this Gradle file into our existing build process. It allows you to setup a fresh Vue Native app with either Expo or React Native CLI. Step 2: Create the packager. Looking into the react-native directory reveals a Gradle file that defines a bundling task. If you are using anything in your app that needs permission you need to add it in AndroidManifest. In react native NetInfo api is used to test whether the Internet is connected or not. It allows faster development as a developer only need to know javascript for developing both apps (iOS & android). The core React Native framework provides just UI rendering and device access APIs. These are the slides I used for my presentation on React Native Maps react-native-geo-fencing module for React Native; Can use Google SDK on both iOS and Android;. The sample project is an application that allows users to search and bookmark hotels from a Couchbase Lite database. Getting Started. Checking internet connectivity in Android and iOS are different. js's dependencies entry to look like this:. Alex is a senior mobile developer with years of experience in Android and iOS. To demonstrate how a native method can be invoked from JavaScript, the demo app contains a button that says "Show native toast from React. Check out my course 'The Complete React Native and Redux' course, its the perfect preparation! Go beyond the basics of React Native! This course will teach you the advanced topics you need to make a #1 best-selling app. GitHub repo for Expo Client. Technologies: -React Native and app working on both Android + iOS -Android Native in Java and app working just on Android Deadline: 7 weeks, ~250 hours My current knowledge: Intermediate Javascript, basics OOP, basics Node. Native Module Setup Native modules are usually distributed as npm packages, apart from the typical javascript files and resources they will contain an Android library project. In the previous part, we successfully implemented the splash screen on the iOS platform. It must be included in the iOS or Android native projects which were generated when we ejected the create-react-native-app. React Native embraces CommonJS and ES2015 modules, so any libraries using these formats are easy to integrate. 61 for the initial project. Let's check the differences between these two! Android. Version 2 of Production Ready React Native is here to help you get your app into the app store just like it has helped hundreds of other developers already. Take a look at the course curriculum and read each module introduction to see what you’ll learn, or check out each lesson to see exactly what you’ll get. h) like so: OutputVolume. 0-beta7 ) to the project; Add 2 screens; Screen 1 RNE components: Input; Button with Icon. Both Cordova and React Native have the ability to create and use plugins that connect to the native side of things. Let's see how such an app looks. We’ve demonstrated a native module implementation in React Native with a hardwired interceptor successfully providing app authentication and API protection. Modify the content of your App. Let's see how we can use these sharing features with React Native. React Native vs Xamarin vs Ionic: Market and Community. The React Native team built bridges for major things like Camera, Fingerprint, Scanner, etc But they can't. If you're creating your app from scratch, React Native is the way to go, but it also works great for adding user flows, screens, views, and features to an existing native app. Swift Modules for React Native January 6, 2016 2018-07-10T15:44:07+0000 JavaScript React Native is an Objective-C application framework that bridges JavaScript applications running in the JSCore JavaScript engine to iOS and Android native APIs. All the native modules that you’re using for your project should use Gradle 3. Native modules are usually distributed as npm packages, apart from the typical javascript files and resources they will contain an Android library project. Over the years React Native has grown substantially. By default react-native-nfc-manager is set to not require NFC hardware on Android. Native Directory is a curated list of React Native libraries to help you build your projects. The module is designed to be as cross-platform therefore it is possible for developers to leverage it using the same codebase on both platforms. If you know that you'll eventually need to include your own native code, Expo is still a good way to get started. This topic assumes that you have already created a React Native project using React Native version 0. With React Native, you can create Android, iOS, and UWP native apps. Sooner or later, you will reach a point where you will have to eject the Expo app into a regular React Native app, so you might as well not waste your time and start the project in a better way. Initialize the project using CRNWA; Make sure everything works: Android, iOS and Web; Add RNE latest ( 1. Generally these are UI-related, like "the user touched this box". The following example creates a React Native app using forcereact on Mac OS X. For the last two years, Airbnb has been using React Native to accelerate development of their mobile platforms. It's used primarily by Facebook, Instagram, Airbnb, and many others. When we are talking about native app development with React Native it is necessary to cover up the most searched term related to React and Native i. The ability to access standard Android and iOS libraries and frameworks is not a nice-to-have feature, it's absolutely necessary. For these situations, CodePush must be told how to find your React Native instance. 14 has a bug, please use v0. You may have tried to use our quick start guide to setup your project for Storybook. However, to get the deeper insights into React Native you can opt for the course React Native: The Practical Guide. React Native Android Image Cropper gives you the best image cropping experience. Community for Expo developers. As an example, let's look at the F8 conference schedule app, which shows off many of the modules that are available on React Native for Windows. With the native Android app, the same image that was crashing the React Native app doesn't cause any problems. Although React Native supports a vast variety of APIs, there's still a requirement to use other APIs through native modules. React Native invokes native modules methods on a separate serial GCD queue, but this is an implementation detail and might change. by the time you finish your app, there might be new tools and new versions of everything). react-native-nfc-manager. react-native-gifted-listview ★1443 - A ListView that embed some recurrent features like pull-to-refresh, infinite scrolling and more for Android and iOS React-Native apps. However, each approach has own strong and weak sides. But React Native takes a quite different approach — it renders using native components. (Optional) Add a branch. Twitter’s website (desktop and mobile-web) is built using React Native Web without using React Native on mobile at all. We will open the Android project using Android Studio. Inspired by phonegap-nfc and react-native-ble-manager. How to Add Google Maps in React Native using React Native Maps, by Airbnb. It allows faster development as a developer only need to know javascript for developing both apps (iOS & android). Whenever you want to write data to the disk, make a network request, or access any other native resource (like the camera), your code needs to call a native module. 2) The android and ios directories contain your typical Android/iOS projects, which can be opened and run in Android Studio/Xcode, respectively. Native CardView that compatible for iOS and Android( both lollipop and pre-lolipop). Writing a native module for Android involves the following steps: Create a ReactPackage, a wrapper object grouping many modules (both native and JavaScript) together, Create a Java class extending ReactContextBaseJavaModule that implements Override the getName method in the aforementioned. Note: The above examples are for the latest react-native using Babel 7. 55, you'll have a. Bring NFC feature to React Native. Let's see how such an app looks. most of the React Native developers). They can't be reused across two platforms but they aim at improving performance in computationally heavy operations like image editing or video playback. APK file to Google Play Store. System functionality and libraries developed for the native device environment can be exposed to the Javascript VM using React Native’s native module interface and accessed through the React Native bridge. Flutter vs React Native - Features and API Components Choosing a cross-platform approach to develop an application comes with a few compromises, the biggest one being no direct access to native features like Bluetooth. List of Icons category available in React Native Vector Icons: You can also brows all the icons from here. While it would be premature to call React Native the silver bullet of mobile app development, it did seem to fit the UberEATS use case very well. If you want to change this behavior to only have your app support NFC devices you have to override you app manifest manually. The only native modules that we use are generic and included in Exponent because they would apply to. create-react-native-app. React Native Adding Icons at the Bottom of Tab Navigation In this section, we will add the icons to the bottom of Tab Navigation. Obviously, you need a bridge to cross this river. Code examples, with Expo. In order to access most of the native modules, React Native has to rely on third-party libraries. By default react-native-nfc-manager is set to not require NFC hardware on Android. React Native invokes native modules methods on a separate serial GCD queue, but this is an implementation detail and might change. Unfortunately for java, the C libraries need to be accessed with JNI, which is a pain (especially to debug, though Android Studio may have improved that since I last tried it). x, link your native module to libGLESv3. I hope you found this tutorial enlightening. We recommend inspecting the native module's source code and logging the module when running a react native app on a real device and then modeling a manual mock after the real module. To link react-native-localization app on android use react-native link react-native-localization and it will apply all the necessary changes to link your library on the Android app. Native CardView that compatible for iOS and Android( both lollipop and pre-lolipop). Inside the newly created folder Motion you will find two. But you have the option of creating your own android module which can act like a bridge between android and react-native. Case study: gitphone, GitHub repository checker for your smartphone. I’ve built multiple apps, reached over 1. Native Modules enable JavaScript to call methods in Java or ObjectiveC and React Native's vibrant ecosystem has native modules for most scenarios an app would need. All apps created using Siphon are fully compatible with the standard React Native framework and transferring your app should only take a few minutes. If you need further explanation or details on the JS-Java bridge beyond this article, check out React Native's guide to Native Modules on Android. The native module should not have any assumptions about what thread it is being called on. Learning React Native: Building Native Mobile Apps with JavaScript [Bonnie Eisenman] on Amazon. React Native, however, takes quite a different approach. @thymikee I think Step 5 should come before Step 2 because otherwise executing react-native link react-native-gesture-handler --platforms android won't do anything. Clearing the Cache of your React Native Project. 55, you'll have a. For whatever the reason, React Native allows you to create your own native modules and expose them to JavaScript. Although React Native advances at a great pace, feature parity beetween Android and iOS is still far from complete. In an effort to reduce the size, complexity, and dependencies for React Native a number of modules were selected to be transformed to community modules. While some users continued to Native application development approach, others have turned towards the ample of opportunities cross-platform framework, React Native is offering. So you have to use platform specific code to check internet connectivity in both OS. In the previous part, we successfully set up react-native 0. At least for me it does that. I recently launched a project called DevHub - TweetDeck for GitHub and one of the things that caught people's attention was the fact that it is an app made by a single developer and available on 6 platforms: Web (react-native-web), iOS (react native), Android (react native), macOS, Windows and Linux (electron, for now), with almost 100% code. React Native was first released in 2015 by Facebook. Generally these are UI-related, like "the user touched this box". It fixed problems with Android devices (in fact, the android module is assembled from react-native's shake event detector module). Inside the newly created folder Motion you will find two. React Native and OpenCV are good friends! If we google for “react native opencv” we stumble upon the following links:. We'll learn what it means to build a robust application architecture that will stay with you regardless of change in the tooling or ecosystem churn (i. Version 2 of Production Ready React Native is here to help you get your app into the app store just like it has helped hundreds of other developers already. In this book, we aim to build cross-platform mobile apps, for Android and iOS, using React Native. Community for Expo developers. Expo projects do not currently support the React Native Agent module. It is helpful when an app needs access to native APIs, and React Native doesn't have a corresponding module yet. Inside the newly created folder Motion you will find two. Congrats! You have just finished choosing, designing, and developing an Android app using React Native, as well as publishing it to the Play Store. To open the app in the Android device, open the Expo App first then tap on Scan QR Code button. React Native invokes native modules methods on a separate serial GCD queue, but this is an implementation detail and might change. Home is where the heart is, but today, the phone is where the heart is! - Cabral. Native modules are a way of bridging native programming and React Native code. Command-line interface for building projects called expo-cli. We will open the Android project using Android Studio. Go and make something useful and publish it!. Drawables: In Android, static app images are typically added to the project's res/drawable folder. Native Modules enable JavaScript to call methods in Java or ObjectiveC and React Native's vibrant ecosystem has native modules for most scenarios an app would need. Intro to Debugging React Native (iOS and Android) Future updates will be made on Medium. Expo projects do not currently support the React Native Agent module. Native modules are usually distributed as npm packages, apart from the typical javascript files and resources they will contain an Android library project. It starts with how React Native fits into the world of hybrid apps, and why it's a popular framework. @thymikee I think Step 5 should come before Step 2 because otherwise executing react-native link react-native-gesture-handler --platforms android won't do anything. Implementing pinning in React Native is a bit complicated and will be described in a separate article and integrated into this example’s code repository. On the native side, we used the Grablet architecture to add our React Native modules. React Native Firebase. Exposing Custom Android Modules React Native Recipes Video How to bridge native modules and UI components in React Native by Peggy React Native For Everyone #3 - Android Setup & Emulation. No new module to install, React Native is now battery-included here! The API is pretty simple and self explaining:. In the application class of the React Native project, add the package module in the getPackage() method. /node_modules/react-native-sqlite/sqlite3 from. He created mobile banking suites and apps for several banks. Creating our Native module. From your project directory, we need to install react-native-ble-plx to do so run npm install react-native-ble-plx --save. React Native Rafie Tarabay [email protected] This documentation is for the latest release version of the Scanbot SDK React Native Module ([email protected] Now I want to do something more complicated. Writing a native module for Android involves the following steps: Create a ReactPackage, a wrapper object grouping many modules (both native and JavaScript) together, Create a Java class extending ReactContextBaseJavaModule that implements Override the getName method in the aforementioned. And for the tweets which are interesting, the user has the option to retweet with a message. Why am I writing this? Hi 👋 I'm Bruno Lemos. React Native provides ability to write both Android and iOS applications together with a majority of JavaScript code shared between them. x, link your native module to libGLESv3. 2) The android and ios directories contain your typical Android/iOS projects, which can be opened and run in Android Studio/Xcode, respectively. Installing Xcode will also install the iOS Simulator and all the necessary tools to build your iOS app. But this is not a good approach because everytime a new dev obtained a copy of your project, they have to always modify the library inside node_modules/ which is not advisable. React Navigation is extensible at every layer— you can write your own navigators or even replace the user-facing API. Inside the newly created folder Motion you will find two. Access Platform APIs with React Native Modules This article was peer reviewed by Wern Ancheta. React Native Firebase. Conclusion. React Native, however, takes quite a different approach. st for Android is likely one of the largest pure React Native codebases around at this time. The easiest way to link the library is using the CLI tool by running this command from the root of your project: react-native link @react-native-community/netinfo. Add a custom font to your React Native app. /node_modules/react-native-sqlite/sqlite3 from. Now I want to do something more complicated. In this tutorial we'll implement remote push notifications for both iOS and Android in a React Native app. Scanbot SDK React Native Module. You can use forcereact on either OS X or Windows, but you can develop an iOS React Native app on OS X only. Facebook's React Native is a powerful framework that allows you to quickly and effortlessly build Android and iOS apps using just JavaScript and JSX. Launch VS Code Quick Open (Ctrl+P), paste the following command, and press enter. Building a React Native app with native code requires the Android 6. Unfortunately for java, the C libraries need to be accessed with JNI, which is a pain (especially to debug, though Android Studio may have improved that since I last tried it). I spent about half a day piecing this all together from a few sources, so here's how it ended up. Navigate to the jhipster-api directory and run. However, because React Native is not a browser environment, we may find it difficult utilizing code that relies on DOM. jpush-react-native 是极光推送官方开发的 React Native 版本插件,可以快速集成推送功能。 现在最新版本的 JPush SDK 分离了 JPush 及 JCore,让开发者可以分开集成 JMessage 及 JPush(以前 JMessage 包含了 JPush)。. Automatic setup. With the React Native Universal Windows. This allows us to use ExpoKit to add custom native modules. Congrats! You have just finished choosing, designing, and developing an Android app using React Native, as well as publishing it to the Play Store. The Scanbot SDK brings scanning and document creation capabilities to your mobile apps. js, basics React. The idea is to write your core application in JavaScript and React Native will compile native iOS and Android applications. You then need to link the native parts of the library for the platforms you are using. The tutorial below is part of my Pull Request at react-native-elements (RNE) repo. This topic assumes that you have already created a React Native project using React Native version 0. The native. Then navigate up a directory and run react-native run-ios. But for writing our React Native app, we would hardly ever need to write native code for iOS or Android. Try this project on your phone! Use Expo's online editor to make changes and save your own copy. Swift Modules for React Native January 6, 2016 2018-07-10T15:44:07+0000 JavaScript React Native is an Objective-C application framework that bridges JavaScript applications running in the JSCore JavaScript engine to iOS and Android native APIs. And the module could be in any of Native, React Native, Flutter, or Web. GitHub repo for Expo Client. This setting will overwrite what ever you put in your main AndroidManifest. They can't be reused across two platforms but they aim at improving performance in computationally heavy operations like image editing or video playback. While it might seem odd to choose React Native for only one mobile platform, especially considering React Native was all about "learn once for mobile instead of twice", it's given us a lot of benefits, such as: React and Flux make up our web front-end tech stack. Since the React Native community is smaller than iOS/Android ones, it supports less third-party components (APIs and libraries) that are often necessary for development. Alex is a senior mobile developer with years of experience in Android and iOS. Native modules are usually distributed as npm packages, apart from the typical javascript files and resources they will contain an Android library project. We can update the initial state by running the toggleModal. 1+) Windows (UWP) We try our best to maintain backwards compatibility of our plugin with previous versions of React Native, but due to the nature of the platform, and the existence of breaking changes between releases, it is possible that you need to use a specific version of the CodePush plugin in order to support the exact version of. Although React Native advances at a great pace, feature parity beetween Android and iOS is still far from complete. just trying to install react-native-sqlite on react-native android. When it comes to giving flexibility and customization, React native is clearly leading. # for ios react-native run-ios # for android react-native run-android You will get the following result. This documentation is for the latest release version of the Scanbot SDK React Native Module ([email protected] If you know that you'll eventually need to include your own native code, Expo is still a good way to get started. If you are only developing for Android, you can skip setting up React Native for iOS development. Last week, I shared how to build a simplest React Native component from scratch. Getting started with React Native will help you to know more about the way you can make a React Native project. Its image cropper library has all the necessary tools to make image cropping activity a rich experience. react-native-android-speech ★45: This simple React Native module for Android Text To Speech functionality. So, let’s get started building the Retweeter app. And as a result it's hard to find out the difference between the app written in Java or Kotlin and React Native app. To date, over 1. most of the React Native developers). React Native is too much dependent on third-party libraries. The first command downloads the tealium-react-native package and install it to your project. React Native start to be mature enough to think about adding the ability to place, executed in parallel, some controller's scripts in different threads. Go and make something useful and publish it!. This guide will help you to manually setup React Native Storybook and explain about addons and Storybook server. That said, React Native has a number of native modules for iOS and Android out-of-the-box, but the number of third-party components is still limited. Thanks to all of SitePoint’s peer reviewers for making SitePoint content the best it can be!. Its image cropper library has all the necessary tools to make image cropping activity a rich experience. In Flutter, If you are using IntelliJ IDE or Android Studio, you can select Save All (⌘s/ctrl-s), or you can click the Hot Reload button on the toolbar. RNE is a cross platform React Native UI toolkit. React Navigation is extensible at every layer— you can write your own navigators or even replace the user-facing API. Implementing pinning in React Native is a bit complicated and will be described in a separate article and integrated into this example’s code repository. You can use forcereact on either OS X or Windows, but you can develop an iOS React Native app on OS X only. The main driver for us at SoundCloud to use React Native was the lack of enough mobile engineers to start development on a new mobile app. #import "React/RCTBridgeModule. React Native — Native Modules — iOS; Cordova — iOS Plugin Development Guide; Standard library binding. Now let’s switch over to our React Native Code and try to use our newly created package. We've used the built-in React Native components and APIs to interact with the underlying native iOS and Android platforms. React Native. It allows you to setup a fresh Vue Native app with either Expo or React Native CLI. In this book, we aim to build cross-platform mobile apps, for Android and iOS, using React Native. I am trying to implement a React Native Android Module for a Honeywell CT50 device with no prior experience. Install React Native CLI. The core React Native framework provides just UI rendering and device access APIs. EDIT: I just realized if you put android in react-native. To create a React Native app, run forcereact create in a Terminal window. React Native has a start up overhead mostly caused by having to inject the JavaScript bundle into JavaScriptCore (the VM used by React Native both on iOS and Android) and instantiate native modules and view managers. React Native NFC module for Android & iOS. We recommend inspecting the native module's source code and logging the module when running a react native app on a real device and then modeling a manual mock after the real module. Install react native on windows : Today, we will see how to install react native for android application development on windows. Contributions are welcome!. In an effort to reduce the size, complexity, and dependencies for React Native a number of modules were selected to be transformed to community modules. There is another side of that coin that shows its face over time. The second command links the native dependencies within the module to your main React Native app so that it builds against the module. React Native: Implementing an AES encryption module for Android 09 January 2018 • For an app I am currently working on I had to find a way to encrypt sensitive user data due to data security laws that the app has to abide by. Native Module Setup. This setting will overwrite what ever you put in your main AndroidManifest. While it would be premature to call React Native the silver bullet of mobile app development, it did seem to fit the UberEATS use case very well. React native has large community support, hence, it enjoys being one of the most popular and reliable frameworks. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: