SSZiparchive simple unarchiving

Question

I am building an app which downloads a bunch of data from a zip file. I downloaded the zipfile but want to extract the catalog which is a pdf file. I am using SSZipArchive but my code isn't working. I guess I'm not unzipping it correctly.

My code:

[data writeToFile:filePath atomically:YES];

// Unzipping
NSString *destinationPath = [documentsDir stringByAppendingPathComponent:@"catalogus"];;
[SSZipArchive unzipFileAtPath:filePath toDestination:destinationPath];
[[NSUserDefaults standardUserDefaults] setValue:destinationPath forKey:@"catalogus"];

And in another viewcontroller I want to open the pdf

NSString *bestand = [[NSUserDefaults standardUserDefaults] valueForKey:@"catalogus"];
ReaderDocument *testdocument = [ReaderDocument withDocumentFilePath:bestand password:phrase];

When i download the pdf directly (not zipped at all) my code works fine.

Answer 1

Use this to unzip :

- (void)Unzipping {

    NSArray  *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *outputPath = [documentsDirectory stringByAppendingPathComponent:@"/PDFFolder"];

    NSString *filePath = [NSString stringWithFormat:@"%@/%@", documentsDirectory,@"FILENAME.zip"];
    NSString *zipPath = filePath;

    [SSZipArchive unzipFileAtPath:zipPath toDestination:outputPath delegate:self];

}

and use this method to fetch pdf from directory :

-(NSData *)FetchPDF
{
    NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString* documentsDirectory = [paths objectAtIndex:0];
    NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"/PDFFolder"];
    NSString *workSpacePath = [dataPath stringByAppendingPathComponent:@"your_filename.pdf"];
    NSData *pdfData = [NSData dataWithContentsOfFile:workSpacePath];

    return pdfData;
}