If your app also has a web version like mine, I came up with a temporary sharing solution that works on mobile and web (as opposed to FF share which is not supported on web).

This is a temporary solution until Flutterflow will introduce their solution. I've looked at branch.io but didn't like the compexity and couldn't even see their pricing.

The nice thing about this solution is that it works on web. If the browser supports it, it uses the navigator.share mechanism supported by many browsers (see it in action here https://codepen.io/stoumann/pen/eYBQbPj). If not supported it uses the mailto: to open the client mail program.

For mobile it uses the same share_plus package like FF

So here is my custom action for sharing a post.

You need to add Pubspec dependecies:

universal_html: ^2.2.4
share_plus: 10.1.3
share_plus_platform_interface: ^5.0.2

and replace <YOUR_APP>, <YOUR DESCRIPTION> and <YOUR_DOMAIN>

Enjoy 😃

// Automatic FlutterFlow imports\nimport '/backend/backend.dart';\nimport '/backend/schema/structs/index.dart';\nimport '/backend/schema/enums/enums.dart';\nimport '/backend/supabase/supabase.dart';\nimport '/actions/actions.dart' as action_blocks;\nimport '/flutter_flow/flutter_flow_theme.dart';\nimport '/flutter_flow/flutter_flow_util.dart';\nimport '/custom_code/actions/index.dart'; // Imports other custom actions\nimport '/flutter_flow/custom_functions.dart'; // Imports custom functions\nimport 'package:flutter/material.dart';\n// Begin custom action code\n// DO NOT REMOVE OR MODIFY THE CODE ABOVE!\n\nimport 'package:share_plus/share_plus.dart';\nimport 'package:url_launcher/url_launcher.dart';\nimport 'package:universal_html/html.dart' as html;\nimport 'package:flutter/foundation.dart' show kIsWeb;\n\nFuture sharePost(String postId) async {\n  final shareText =\n\t\"Hey!%20%F0%9F%91%8B%0A%0AI%20just%20discovered%20<YOUR_APP>%20-%20it%27s%20a%20<YOUR DESCRIPTION>%0A%0ACheck%20it%20out%3A%20https%3A%2F%2F<YOUR_DOMAIN>%2Fpost%2F$postId%0A%0ASee%20you%20there%20%F0%9F%98%8A%0A%0A\";\n  final emailSubject = \"Found%20this%20cool%20new%20app\";\n\n  if (kIsWeb) {\n    try {\n      // Try to use the Web Share API\n      try {\n        final shareData = {\n          'title': Uri.decodeFull(emailSubject),\n          'text': Uri.decodeFull(shareText),\n          'url': 'https://<YOUR_DOMAIN>/post/$postId'\n        };\n\n        await html.window.navigator.share(shareData);\n        return;\n      } catch (webShareError) {\n        // Web Share API not available or failed, fall back to email\n        final emailUrl = 'mailto:?subject=$emailSubject&body=$shareText';\n        final uri = Uri.parse(emailUrl);\n        if (await canLaunchUrl(uri)) {\n          await launchUrl(uri);\n        } else {\n          throw 'Could not launch email client';\n        }\n      }\n    } catch (e) {\n      print('Error sharing content: $e');\n      // You might want to show a snackbar or dialog here to inform the user\n    }\n  } else {\n    // Mobile platforms using share_plus\n    try {\n      await Share.share(\n        Uri.decodeFull(shareText),\n        subject: Uri.decodeFull(emailSubject),\n      );\n    } catch (e) {\n      print('Error sharing content: $e');\n      // You might want to show a snackbar or dialog here to inform the user\n    }\n  }\n}

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