[android][web-browser] Fix WebBrowser sending 'dismiss' before opening (

#6743)

* [android][web-browser] Fix WebBrowser sending 'dismiss' before opening

Fixes #6679

TL;DR
A wrong usage of AppState causes WebBrowser to resolve with
`{ type: 'dismiss' }` before opening the view.

This is related to AppState being not initialised yet,
triggering a change before the user leaves the app view
to focus on the browser view.

* Build packages

* Updated CHANGELOG

* Store only if AppState is available instead of every state change

* Clean yarn.lock

* Update packages/expo-web-browser/CHANGELOG.md

Co-Authored-By: Łukasz Kosmaty <lukasz.kosmaty@student.uj.edu.pl>

Co-authored-by: Łukasz Kosmaty <lukasz.kosmaty@student.uj.edu.pl>
Co-authored-by: Brent Vatne <brentvatne@gmail.com>

packages/expo-web-browser/CHANGELOG.md

@@ -9,3 +9,5 @@
 - Add `readerMode` and `dismissButtonStyle` (iOS) and `enableDefaultShare` (Android) flags for `WebBrowser` ([#7221](https://github.com/expo/expo/pull/7221) by [@LinusU](https://github.com/LinusU)) & [@mczernek](https://github.com/mczernek))
 
 ### 🐛 Bug fixes
+
+- Fix `WebBrowser` sending `dismiss` before opening. ([#6743](https://github.com/expo/expo/pull/6743) by [@LucaColonnello](https://github.com/LucaColonnello))

packages/expo-web-browser/src/WebBrowser.ts

@@ -165,7 +165,17 @@ let _redirectHandler: ((event: RedirectEvent) => void) | null = null;
 // returns to active
 let _onWebBrowserCloseAndroid: null | (() => void) = null;
 
+// If the initial AppState.currentState is null, we assume that the first call to
+// AppState#change event is not actually triggered by a real change,
+// is triggered instead by the bridge capturing the current state
+// (https://facebook.github.io/react-native/docs/appstate#basic-usage)
+let _isAppStateAvailable: boolean = AppState.currentState !== null;
 function _onAppStateChangeAndroid(state: AppStateStatus) {
+  if (!_isAppStateAvailable) {
+    _isAppStateAvailable = true;
+    return;
+  }
+
   if (state === 'active' && _onWebBrowserCloseAndroid) {
     _onWebBrowserCloseAndroid();
   }