Dismissing picker on iPad by clicking outside still awaits and doesn't return null

[burakomer]

Describe the bug
On the iPad simulator, when I initiate the picker, if I click outside of the picker dialog, it dismisses the dialog, but result doesn't return as null, the await part still awaits. When I initiate the picker again, it throws an error that says there's multiple requests, because the first picker still is awaiting even after being dismissed.

Platform

• iOS (iPadOS)

Platform OS version
What version did it happen?
iOS 14.5

How are you picking?

final pickedFile = await FilePicker.platform.pickFiles(
        allowMultiple: false,
        withData: true,
      );

Details to reproduce the issue
On iPad, call pickFiles with await (async callback in a button).
Dismiss the dialog by tapping outside the dialog.
Call the same pickFiles code.

Error Log

flutter: [MethodChannelFilePicker] Platform exception: PlatformException(multiple_request, Cancelled by a second request, null, null)
[VERBOSE-2:ui_dart_state.cc(199)] Unhandled Exception: PlatformException(multiple_request, Cancelled by a second request, null, null)
#0      StandardMethodCodec.decodeEnvelope
package:flutter/…/services/message_codecs.dart:597
#1      MethodChannel._invokeMethod
package:flutter/…/services/platform_channel.dart:158
<asynchronous suspension>
#2      MethodChannel.invokeListMethod
package:flutter/…/services/platform_channel.dart:344
<asynchronous suspension>
#3      FilePickerIO._getPath
package:file_picker/src/file_picker_io.dart:87
<asynchronous suspension>

[miguelpruivo]

Does that happen with a real iPad?

[burakomer]

Does that happen with a real iPad?

I don't own one, if someone can test it on a real device I'd like to know.

Edit: By the way I quickly solved it on the simulator with a try catch block, catching the PlatformException with code multiple_request and re-initiating the picker.

[tomwyr]

I experience the exact same problem on simulator iOS 14.5. Same things happen on a real iPhone device.

[miguelpruivo]

Fixed with 4.1.1. 🎉

Thank you for reporting.

[Liloupar]

it also happen when not clock cancel button, but drag title down to close window.
next try FilePicker.platform.pickFiles will be received the same error