Not able to determine when form is closed after calling Contacts.presentFormAsync on iOS

Environment

Expo CLI 2.11.7 environment info: System: OS: macOS 10.14.3 Shell: 5.3 - /bin/zsh Binaries: Node: 8.11.1 - /usr/local/bin/node Yarn: 1.13.0 - ~/.yarn/bin/yarn npm: 6.7.0 - /usr/local/bin/npm Watchman: 4.9.0 - /usr/local/bin/watchman IDEs: Android Studio: 3.3 AI-182.5107.16.33.5199772 Xcode: 10.1/10B61 - /usr/bin/xcodebuild npmPackages: expo: ^32.0.0 => 32.0.2 react: ^16.5.0 => 16.7.0 react-native: https://github.com/expo/react-native/archive/sdk-32.0.0.tar.gz => 0.57.1 npmGlobalPackages: expo-cli: 2.11.7

target: iOS on simulator

Steps to Reproduce

1. trigger Contacts. presentFormAsync(id)
2. edit the contact
3. finish the editing

Expected Behavior

on Android, it is triggering the update of the AppState, then if I update my contact list based on the phonebook, I got my contact list updated every time I change a contact thanks to presentFormAsync. but not on iOS

[arnaudambro]

That’s actually really something I want to do, because expo has been a great tool to me. I’ll do as soon as I can

[brentvatne]

it does sound like a reasonable expectation to be able to receive a signal somehow that the editing has completed. i looked into it and was hopeful that the promise would resolve from presentFormAsync upon closing the modal, but it actually just resolves once it has opened.

a workaround for this at the moment is to poll for changes to the contact after you open the form - certainly not ideal as you’d probably need to do a deep comparison on all fields. ideally, i think, we would want presentFormAsync to resolve the promise it returns upon closing the modal. are you interested in opening a pull request for this?