Hey, how can I try something like this? Can I do it within a normal RN project already or is there a special setup needed? Can you share what have you used as an example/guide/boilerplate?
React Native’s JSI hasn’t been talked about enough — it lets you call C++ from JS with little overhead. Yesterday, I wrote a library to fetch a list of photos from the camera roll. react-native-camera-roll: 360ms my library using the JSI: 15ms 20x faster & runs synchronouslyhttps://twitter.com/jarredsumner/status/1222852340551573514 …
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It works with >= RN 0.59, IIRC This is a small example: https://github.com/facebook/react-native/blob/master/Libraries/Blob/RCTBlobCollector.mm#L27 … You call a function like that from your RCTViewManager subclass' setBridge method. Then you write a function that returns JavaScript objects like this: https://github.com/chrfalch/react-native-reanimated/blob/jsi-methods/ios/REAJsiModule.mm#L39 … That's it
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Something not totally clear to me. In new architecture, should I know JS Swift Kotlin and now c++ to be a productive fullstack RN developer? That starts to be a lot to learn.
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Definitely not necessary I don’t think many react native developers will end up writing C++ at all, just as few write Swift or Kotlin or Objective C right now. When TurboModules is rolled out, C++ will be even more uncommon
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TurboModules looks really cool (along with react-native-codegen). I tried using TurboModules for this but couldnt get the app to build though :( It was an issue with folly/Optional.h not being found, I spent a couple hours trying things and then gave up
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Is it possible to do this without blocking, too?
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Yeah, you can return a Promise or a callback and then the C++ code can run stuff in a separate thread
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What's the js calling it like?
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global.MediaPlayerViewManager.getPhotos and I pass it a dictionary of options similar to react-native-camera-roll “MediaPlayerViewManager” is an ugly name but I can change that later
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Čini se da učitavanje traje već neko vrijeme.
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