saveFileByte static method
This method saves the given ByteData object to the file with the given fileName in the application documents directory.
Implementation
static Future<bool> saveFileByte(String fileName, ByteData data) async {
final buffer = data.buffer;
await File(await getFilePath(fileName)).writeAsBytes(
buffer.asUint8List(data.offsetInBytes, data.lengthInBytes));
return true;
}