IOS share extension to store image in app group and open with custom URI scheme

[hflexgrig]

I'd like to share my sample app, which is based on @VladislavAntonyuk 's template. You can share image from photos or screenshot editor, and display on a main app.

Simulator.Screen.Recording.-.iPad.A16.-.2025-08-03.at.16.19.23_compressed.mp4

Source

Extension and main app uses app group defined in Entitlements.plist

<dict> <key>com.apple.security.application-groups</key> <array> <string>group.com.yourcompany.mauiapp</string> </array> </dict>

also custom URI scheme defined in main app's Info.plist

<key>CFBundleURLTypes</key> <array> <dict> <key>CFBundleURLName</key> <string>com.vladislavantonyuk.container</string> <key>CFBundleURLSchemes</key> <array> <string>mauiapp</string> </array> </dict> </array>

extension app reads image data, stores in a app group and opens main app by custom URI, then main app reads and displays data.

Hope this gonna be useful for some else as well.

BTW I have implementation for iOS 18 + , please someone fix for lower versions as well and and feel free to create pull request.