Does iOS support the react native library - ios

I am developing a iOS application where I need to develop the functionality like a react native library is this possible I am using react native library in my native application.

$ npm install --save
use this command to automatically add all the react native libraries be it an android application or an IOS application.
In case you want to do it manually,
please refer the link below which gives you the step by step pictorial representation on how to do it-
https://facebook.github.io/react-native/docs/linking-libraries-ios

Related

How to open an Expo React Native project in Xcode in order to create a build

I have an expo react native app's project and xcode simply denies to open it. I looked up for the solutions on internet but it says it can be done through podfile but there is no such file or ios folder in an expo react native project. How can I open it in xcode
If you dont have the ios and android folders then it sounds you have a managed work flow expo project. This is a react native project where all the code you write is pure javascript and all of the native side code is managed by expo. If this is what you want then you just need to use expo build tools. If you must build with xcode then eject your project and open the ios folder in xcode and build from there

Create own dependency in react native for iOS

I'm creating first react-native dependency for both android and iOS. I have done coding part for android but now I'm stuck in iOS. Where to write code for my library and how to test.
React Native uses CocoaPods to manage iOS project dependencies and most React Native libraries follow this same convention.
Run pod install in our ios directory in order to link it to our native iOS project. A shortcut for doing this without switching to the ios directory is to run npx pod-install.
Once this is complete, re-build the app binary to start using your new library:
npx react-native run-ios.
For testing the code you could use Jest testing framework.
go onto the ReactNative for more guidance.

Use Expo iOS app to test pure react native code

I want to be able to test an app created with react-native init through the expo app downloaded from the app store. How can I do this?
I'm trying to use pure react native (no expo at all) and want to test my code on my iOS device. A while ago, I was able to do this through the expo app simply by running npm start. However, now when I run npm start I only see Running Metro Bundler on port 8081..
You cannot run a project created with react-native init with the Expo app. However, you can use https://snack.expo.io/ to test plain React Native code in either the browser emulator or on your device (which will open through the Expo app) by pointing your iOS camera app at the QR code they display for you. The caveat to this is that you cannot use native modules within a Snack.
Depending on the size of your app, you can port your code over from react-native init into a freshly created expo project. I have managed to do this on several projects in the past with great success. The process can be tedious depending on the age of your dependencies however.

Build Ionic Application From Xcode Project

I'm building an iOS application using Xcode/Swift, and I have a few less-than-technical group members who don't really know how to build Xcode projects, but are interested in seeing/testing the progress of the application. One group member pointed out that they could test the app using Ionic/Ionic View. However, to my understanding, Ionic works by building an application in the specific Ionic framework, and then Ionic translates the project into an Xcode/Swift project (.xcodeproj) or an Android project. Is there a way to do the reverse conversion––is there a way to convert my Xcode project so that it will work on Ionic, or specifically Ionic View?
Ionic is tool like cordova created to develop hybrid apps (from HTML+JS+CSS --> to Native iOS/Android/WinPhone/BlackBerry). The UI is running in native webView, and using some native functionalities by plugins but it is not created to make Ionic/Cordova app from native.
If you want to share your app to tests, use Apple TestFlight
'Ionic View' is a very good advice and the one I would suggest in your case as well.
You don't have to do anything in your code really to use it, just create an ionic account and in your terminal, change into your ionic project directory and then type:
$> ionic upload
You will be asked for the usernmame and password of the account you just created, the application will be uploaded and you will get a unique app ID. You can then share that ID with anyone who you want to test your app, as long as they have the Ionic View app installed on the their iOS or Android devices.
Also do make sure you have updated your global ionic and cordova packages to the latest version before you upload:
$> sudo npm uninstall -g ionic && sudo npm install ionic
Now, as 3squad mentioned, many of they Ionic Native plugins are not supported so don't expect everything to work, but it's a good start to show most of your app and design running.
Here's a list of currently supported plugins.
Please do keep in mind that the performance using Ionic View will be far worse than if you actually build, release and give your users and actual production .apk or .ipa file to install. This latter approach would also showcase the full, final performance and functionality resulting from your code, but it may be more cumbersome.
Here's how to release a production version of your app.

Mixing cordova web and native iOS code

I have inherited a Cordova project that mixes web code with native code.
I'm using cordova CLI 6.3.1 and the cordova ios platform version is 3.9.2.
Whilst working I come across this warning in the console.
Using this version of Cordova with older version of cordova-ios is
being deprecated. Consider upgrading to cordova-ios#4.0.0 or newer.
However, when I try updating the ios platform version using cordova platform update ios --save it completely wipes out all files in the "platforms" folder - which currently includes all the custom iOS project files, i.e. custom classes and what not.
Is there something fundamentally wrong with our project setup?
What is the recommended way to mix and match cordova web and native iOS code so that updating the cordova ios platform doesn't nuke everything?
Generally, the files under /platforms are generated on the fly based on changes that are made in /www. Running cordova prepare ios, cordova build ios, cordova platform update ios, or cordova run ios, will always nuke the platforms/ios folder and retreat it based on /www.
You mentioned your project has custom native code. Is that native code built as a cordova plugin? If so then you should be good following the standard workflow. Work in /www. Test your project cordova run ios.
If not, you might want to consider refactoring the native code you have as a plugin.
Look at this plugin's code structure as an example.
Follow this guide on how to start developing a plugin.

Resources