Burst of memory - Flutter

Question

While trying to unzip a 500MB zip file using the package Archive, I’m having memory problems (Out of memory).

Follow the code for evaluation and suggestion of some alternative.

    unarchiveAndSave(var zippedFile) async {
    var bytes = zippedFile.readAsBytesSync();
    var archive = ZipDecoder().decodeBytes(bytes);

    for (var file in archive) {
      var fileName = '$_dir/${file.name}';

      if (file.isFile) {
        var outFile = File(fileName);
        print('File:: ${outFile.path}');
        outFile = await outFile.create(recursive: true);
        await outFile.writeAsBytes(file.content);
      }
    }
  }

The system decompresses much of the file, however, at some point the return I have is that lost the connection with the emulator and other Out of memory.

Answer 1

I have no test here, but try to use the class Inputfilestream setting up the bufferSize and then calling directly decodeBuffer.