I integrated google drive sdk with my ios app. But i do not know how to upload a file to google drive specific folder. Here the code am using to upload the file. But this one uploading the file to my google drive root folder. Any one share a code to upload a file to google drive specific folder?.

My Code:

-(void)uploadFileToGoogleDrive:(NSString*)fileName

{
GTLDriveFile *driveFile = [[[GTLDriveFile alloc]init] autorelease];

driveFile.mimeType = @"application/pdf";
driveFile.originalFilename = @"test.doc";
driveFile.title = @"test.doc";

NSString *filePath = [LocalFilesDetails getUserDocumentFullPathForFileName:fileName isSignedDocument:YES];

GTLUploadParameters *uploadParameters = [GTLUploadParameters
                                         uploadParametersWithData:[NSData dataWithContentsOfFile:filePath]
                                         MIMEType:@"application/pdf"];    

GTLQueryDrive *query = [GTLQueryDrive queryForFilesInsertWithObject:driveFile
                                    uploadParameters:uploadParameters];

[self.driveService executeQuery:query completionHandler:^(GTLServiceTicket *ticket,
                                                     GTLDriveFile *updatedFile,
                                                     NSError *error) {
    if (error == nil) {
        NSLog(@"\n\nfile uploaded into google drive\\<my_folder> foler");
    } else {
        NSLog(@"\n\nfile uplod failed google drive\\<my_folder> foler");            
    }
}];

}