Share Extension/Intents (#2587)

* add native ios code outside of ios project

* helper script

* going to be a lot of these commits to squash...backing up

* save

* start of an expo plugin

* create info.plist

* copy the view controller

* maybe working

* working

* wait working now

* working plugin

* use current scheme

* update intent path

* use better params

* support text in uri

* build

* use better encoding

* handle images

* cleanup ios plugin

* android

* move bash script to /scripts

* handle cases where loaded data is uiimage rather than uri

* remove unnecessary logic, allow more than 4 images and just take first 4

* android build plugin

* limit images to four on android

* use js for plugins, no need to build

* revert changes to app config

* use correct scheme on android

* android readme

* move ios extension to /modules

* remove unnecessary event

* revert typo

* plugin readme

* scripts readme

* add configurable scheme to .env, default to `bluesky`

* remove debug

* revert .gitignore change

* add comment about updating .env to app.config.js for those modifying scheme

* modify .env

* update android module to use the proper url

* update ios extension

* remove comment

* parse and validate incoming image uris

* fix types

* rm oops

* fix a few typos

plugins/shareExtension/withExtensionViewController.js

@@ -0,0 +1,31 @@
+const {withXcodeProject} = require('@expo/config-plugins')
+const path = require('path')
+const fs = require('fs')
+
+const withExtensionViewController = (
+  config,
+  {controllerName, extensionName},
+) => {
+  // eslint-disable-next-line no-shadow
+  return withXcodeProject(config, config => {
+    const controllerPath = path.join(
+      config.modRequest.projectRoot,
+      'modules',
+      extensionName,
+      `${controllerName}.swift`,
+    )
+
+    const targetPath = path.join(
+      config.modRequest.platformProjectRoot,
+      extensionName,
+      `${controllerName}.swift`,
+    )
+
+    fs.mkdirSync(path.dirname(targetPath), {recursive: true})
+    fs.copyFileSync(controllerPath, targetPath)
+
+    return config
+  })
+}
+
+module.exports = {withExtensionViewController}