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I am very new to react-native. I am having good experience on Cordova/ionic framework for Hybrid app development. I am just exploring react/react-native. One concept which I like is "virtualDOM" There are a couple of questions here. (some might be layman questions. But, just want clear my thinking.)

  1. Because of VirtualDOM, do you think the memory footprint will increase?
  2. I am trying to develop a small app which plays/pauses/stops a video. and starts/stops the recording of the video. Do you have any plugins available for accessing media devices?
  3. Does react-native support all device native features?( like Address Book, file system, geolocation, vibration, battery status, device native calendar, capture, contacts, device, device motion, SMS). If so, can you point me to some links where I can access the device specific features?
Dale
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Vamsidhar Mamillapalli
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1 Answers1

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  1. Of course a React Native app is slower and uses more memory than a full native app. However, React Native still seems to be pretty performant in many ways.

  2. There is a library called react-native-video which supports all you're asking for. There might however be some issues on older versions of android. https://www.npmjs.com/package/react-native-video

  3. A lot of these features are supported by React Native: https://facebook.github.io/react-native/docs/actionsheetios.html#content (Check APIs in the sidebar). If something is not implemented by React Native itself, probably somebody else already did and there is a npm package you can install (and link with rnpm for linking android/ios code). If you want something custom, you can still build your own Java/Swift/objectiveC component and wrap it to a React Native component. (https://facebook.github.io/react-native/docs/native-components-android.html and https://facebook.github.io/react-native/docs/native-components-ios.html)

dejakob
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