Unable to get picture sizes from expo-camera

Expo SDK
1

Please provide the following:

  1. SDK Version: 49
  2. Platforms(Android/iOS/web/all): IOS
  3. Add the appropriate “Tag” based on what Expo library you have a question on.
import { Camera, CameraType } from "expo-camera";
import React, { useEffect, useRef } from "react";
import { StyleSheet } from 'react-native';

export const CameraSettings = () => {
   const cameraRef = useRef(null);
   const [status, requestPermission] = Camera.useCameraPermissions();
   useEffect(() => {
       console.log("status", status)
       if (status?.granted) {
           const setup = async () => {

               const sizes = await cameraRef.current.getAvailablePictureSizesAsync("4:3");
               console.log("cameraSizes", sizes);
           }
           setup();
       }
   }, [status?.granted])

   return (
       <React.Fragment>
           <Camera style={styles.camera} type={CameraType.back} useCamera2Api ref={cameraRef}>
           </Camera>

       </React.Fragment>

   )
}

const styles = StyleSheet.create({
   camera: {
       height: 0,
       width: 0
   }
})

I’ve tested this code with an iPad using OS 16.1.1
The result of cameraRef.current.getAvailablePictureSizesAsync(“4:3”);
is undefined

I have minimum repro in public github:

2

I also noticed when I take a photo with the IOS camera app the resolution is:
3024x4032

but with expo-camera I get
2376 × 3168

3

Hi @revolutionappdev

You might want to have a look at React Native Vision Camera. I think it might give you more control

Just one thing: The Getting Started guide tells you to run expo prebuild, but it is not necessary to prebuild because this will be done for you when you build via eas build.

4

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