I'm following the instructions for React Native Image Picker and I'm confused about whether I should run pod install after react-native link
https://github.com/react-community/react-native-image-picker#install
From what I can tell it adds this line to the podfile
pod 'react-native-image-picker', :path => '../node_modules/react-native-image-picker
It doesn't seem to link anything else in the iOS Xcode project or hook up or link anything else in the xcode project.
Calling ImagePicker in the react native code gives the runtime error
cannot read property 'showImagePicker' of undefined error when calling ImagePicker.showImagePicker(options)
ImagePicker and showImagePicker is defined in the javascript runtime so I think the error is coming from the ios side of things.
As an alternative, I tried to run pod install afterwards and I get a build error with header not found for react libraries.
You basically have two options, either use react-native link or use cocoapods. react-native link will link the framework to both IOS and Android. If you decide to use cocoapods it's only for IOS.