Published on June 5, 2017 by LevelUpTuts

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React Native lets you build mobile apps using only JavaScript. It uses the same design as React, letting you compose a rich mobile UI from declarative componReact Native lets you build your app faster. Instead of recompiling, you can reload your app instantly. With hot reloading, you can even run new code while retaining your application state. Give it a try – it’s a magical experience.ents.

With React Native, you don’t build a “mobile web app”, an “HTML5 app”, or a “hybrid app”. You build a real mobile app that’s indistinguishable from an app built using Objective-C or Java. React Native uses the same fundamental UI building blocks as regular iOS and Android apps. You just put those building blocks together using JavaScript and React.

React Native combines smoothly with components written in Objective-C, Java, or Swift. It’s simple to drop down to native code if you need to optimize a few aspects of your application. It’s also easy to build part of your app in React Native, and part of your app using native code directly – that’s how the Facebook app works.

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3 Comments on "React Native For Everyone #2 – iOS Setup & Simulator"

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Luis Rizo
Luis Rizo
1 month 43 minutes ago

When i do "npm run ios", the simulator start up, but it does not look like yours. Mine already has regular apps such as Calendar, Photos, Maps, etc.. Any ideas why?

28 days 1 hour ago

Had the same issue. I hit ctrl-c twice in the terminal window to stop the simulator and relaunched. When the simulator launched the second time it asked me right off the bat if I want to launch expo. Clicked yes, got the expo dev screen and at the top of it in the simulator there was a button to take me to the react page. Hope this helps.

Amirul Hijaz Alias
Amirul Hijaz Alias
1 month 21 days ago

is it okay if i proceed without xcode since im using windows? also i tried to make the hello world seems fine. Really appreciate your reply