walk method
Return tree List of files starting from the root of type File.
This function uses filter
Implementation
Stream<FileSystemEntity> walk({followLinks: false}) async* {
if (filter != null) {
try {
yield* Directory(root.path)
.list(recursive: true, followLinks: followLinks)
.transform(StreamTransformer.fromHandlers(
handleData: (FileSystemEntity fileOrDir, EventSink eventSink) {
if (filter!.isValid(fileOrDir.absolute.path, root.absolute.path)) {
eventSink.add(fileOrDir);
}
}));
} catch (error) {
throw FileManagerError(permissionMessage + error.toString());
}
} else {
print("Flutter File Manager: walk: No filter");
yield* Directory(root.path)
.list(recursive: true, followLinks: followLinks);
}
}