Added support for android view intent action

[GRBurst]

I added some representative change request, but there is more of your personal ids that need to be reverted ;-)

[filipenanclarez]

intent.action.VIEW is handled in package as url type. When user try open a file, android system send the uri of this file to intent.

if you need open file with dart:io functions like readAdBytes or readAsString, you should convert the Uri to full path. You can do this with uri_to_file package.

So, you can handle action.VIEW with this code in flutter side:

import 'package:uri_to_file/uri_to_file.dart';
...
// For sharing or opening urls/text coming from outside the app while the app is closed
ReceiveSharingIntent.getInitialText().then((String? value) async {
    String _sharedText = value ?? "";
    debugPrint('path of file: ${Uri.parse(_sharedText).path}');
    File file = await toFile(_sharedText);
    var fileContent = await file.readAsString();
    ...
});