Issue
I need your help with this please, I am uploading a TXT file with plugin file_picker in Flutter WEB and it is works, after that I would like to read the content line by line and process this data, but I dont know to do this…
My code is this:
//load File from txt
loadFile() async {
FilePickerResult result = await FilePicker.platform.pickFiles(
type: FileType.custom,
allowedExtensions: ['txt'],
);
if (result != null) {
PlatformFile file = result.files.first;
print(file.name);
// print(file.bytes);
print(file.size);
print(file.extension);
print(file.path);
print("contenido");
setState(() {
_nameFile = file.name;
_uploadFile = true;
});
}
}
Someone has any idea to do this?, I was investigating but I did not find much information about it, thnx a lot for that
PD: this project is only works on FLutter Web
Solution
You can convert the file.bytes
to a String
and then split this String
at each line return (\n
) the following way:
import 'convert.dart';
String fileContent = utf8.decode(file.bytes);
List<String> lines = fileContent.split('\n');
Answered By – Antonin GAVREL
Answer Checked By – David Goodson (FlutterFixes Volunteer)