Question 242397 in Flutter Question posted in
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Flutter – Platform exception: PlatformException(already_active, File picker is already active, null, null)

I have two profiles in my phone, personal and work profile. The file picker I am using works well in the personal profile, but when I try to use the same file picker in the work profile, I get the error mentioned below.

[MethodChannelFilePicker] Platform exception: PlatformException(already_active, File picker is already active, null, null)
E/flutter (16388): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(already_active, File picker is already active, null, null)
E/flutter (16388): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:652:7)
E/flutter (16388): #1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:310:18)
E/flutter (16388): <asynchronous suspension>
E/flutter (16388): #2      MethodChannel.invokeListMethod (package:flutter/src/services/platform_channel.dart:496:35)
E/flutter (16388): <asynchronous suspension>
E/flutter (16388): #3      FilePickerIO._getPath (package:file_picker/src/file_picker_io.dart:92:33)
E/flutter (16388): <asynchronous suspension>
E/flutter (16388): #4      _UploadFileWidgetState.selectFile (package:feeta/views/other_widgets/upload_file_widget.dart:40:32)
E/flutter (16388): <asynchronous suspension>

This is the code of FilePicker I am using:

Future<void> selectFile() async {
    FilePickerResult? result = await FilePicker.platform.pickFiles(
      type: FileType.custom,
      allowedExtensions: ['pdf', 'jpg', 'jpeg', 'png'],
      allowMultiple: false,
    );

    if (result != null && result.files.isNotEmpty) {
      File selected = File(result.files.single.path!);
      String fileExtension = selected.path.split('.').last.toLowerCase();

      if (fileExtension == 'pdf' || fileExtension == 'jpg' ||
          fileExtension == 'jpeg' || fileExtension == 'png') {
        int fileSize = selected.lengthSync();
        if (fileSize <= 1024 * 1024) {
          if (widget.dialogType == "postLeave") {
            _allLeaveViewModel.selectedFile.value = selected;
            print("SelectedFile1: ${_allLeaveViewModel.selectedFile.value}");
          } else {
            _myLeavesViewModel.selectedFile.value = selected;
            print("SelectedFile2: ${_myLeavesViewModel.selectedFile.value}");
          }
          setState(() {
            selectedFile = selected;
          });
        } else {
          showFileSizeExceededDialog();
        }
      } else {
        showInvalidFileTypeDialog();
      }
    }
  }

This is the dependency I am using:

  cupertino_icons: ^1.0.2
  http: ^1.0.0
  #webview_flutter: ^4.2.2
  flutter_inappwebview: ^5.7.2
  #flutter_html: ^3.0.0-beta.2
  flutter_secure_storage: ^8.0.0
  dio: ^5.3.2
  jwt_decoder: ^2.0.1
  file_picker: ^5.3.3

Do I need to handle this filePicker differently for the work profile?
Can anyone please tell me why I am getting this problem only in the work profile, where the same code is working fine in the personal profile.
Any help or suggestion would be appreciated!.

Tags:

2

Answers


  1. 0

    Updated: file_picker: ^5.3.3 is working flawlessly in the below-written code.

    Here’s the solution. I tried to implement the same functionality as yours. But the only difference is I’m using the latest version of the File Picker package. I used 5.5.0, which is the new version available for the Picker.

    Use file_picker: ^5.5.0 from link: https://pub.dev/packages/file_picker

    Source code:

      Future<void> selectFile() async {
    final FilePickerResult result = await FilePicker.platform.pickFiles(
          type: FileType.custom,
          allowedExtensions: <String>["pdf", "jpg", "jpeg", "png"],
        ) ??
        const FilePickerResult(<PlatformFile>[]);
        
    if (result.files.isNotEmpty) {
      final File selected = File(result.files.single.path ?? "");
      final String ext = selected.path.split(".").last.toLowerCase();
      if (ext == "pdf" || ext == "jpg" || ext == "jpeg" || ext == "png") {
        final int size = await selected.length();
        if (size <= 1024 * 1024) {
          // Your Code Goes Here
        } else {
          log("Size Exceeded");
        }
      } else {
        log("Invalid File Type");
      }
    } else {
      log("Nothing Picked From File Picker");
    }
    return Future<void>.value();
  }
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  2. 0

    In addition to the above answer try to stop the app and follow these steps:

    1. Run the command Flutter clean
    2. Run the command Flutter pub get
    3. Then run the app

    This works fine with me.

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