IOS development and ios development tutorial

IOS development and ios development tutorial
Third-party decompression framework-SSZipArchive

: Https://github.com/samsoffes/ssziparchive
Note: The libz. dylib framework must be introduced.

// UnzippingNSString *zipPath = @"path_to_your_zip_file";NSString *destinationPath =@"path_to_the_folder_where_you_want_it_unzipped";[SSZipArchive unzipFileAtPath:zipPath toDestination:destinationPath];// ZippingNSString *zippedPath = @"path_where_you_want_the_file_created";NSArray *inputPaths = [NSArray arrayWithObjects:                       [[NSBundle mainBundle] pathForResource:@"photo1" ofType:@"jpg"],                       [[NSBundle mainBundle] pathForResource:@"photo2" ofType:@"jpg"]                       nil];[SSZipArchive createZipFileAtPath:zippedPath withFilesAtPaths:inputPaths];

I. Technical Solutions
1. Third-party framework: SSZipArchive
2. dependent dynamic library: libz. dylib

Ii. Compression 1
1. The first method
/**
ZipFile: The final path of the generated zip file
Directory: the path of the folder to be compressed
*/

[SSZipArchive createZipFileAtPath:zipFile withContentsOfDirectory:directory];

2. The first method
/**
ZipFile: The final path of the generated zip file
Files: This is an array that stores the path of the files to be compressed.
Files = @ [@ "/Users/apple/Destop/1.png", @ "/Users/apple/Destop/3.txt"]
*/

[SSZipArchive createZipFileAtPath:zipFile withFilesAtPaths:files];

Iii. Decompression
/**
ZipFile: Path of the zip file to be decompressed
Dest: Where to decompress the package
*/

[SSZipArchive unzipFileAtPath:zipFile toDestination:dest];

File compression instance

# Import "MalJobViewController. h "# import" SSZipArchive. h "# define MalJobFileBoundary @" heima "# define MalJobNewLine @" \ r \ n "# define MalJobEncode (str) [str dataUsingEncoding: NSUTF8StringEncoding] @ interface MalJobViewController () @ end @ implementation MalJobViewController-(void) viewDidLoad {[super viewDidLoad];}-(NSString *) MIMEType :( NSURL *) url {// 1. create a request NSURLRequest * request = [NSURLRequest requestWithURL: url]; // 2. send a request (response) NSURLResponse * response = nil; [NSURLConnection sendSynchronousRequest: request returningResponse: & response error: nil]; // 3. obtain MIMEType return response. MIMEType;}-(void) touchesBegan :( NSSet *) touches withEvent :( UIEvent *) event {NSString * caches = [events (NSCachesDirectory, NSUserDomainMask, YES) lastObject]; // 0. obtain the NSString * images = [caches stringByAppendingPathComponent: @ "images"]; // 1. create a zip file (Compressed) NSString * zipFile = [caches stringByAppendingPathComponent: @ "images.zip"]; BOOL result = [SSZipArchive createZipFileAtPath: zipFile withContentsOfDirectory: images]; if (result) {NSString * MIMEType = [self MIMEType: [NSURL fileURLWithPath: zipFile]; NSData * data = [NSData dataWithContentsOfFile: zipFile]; [self upload: @ "images.zip" mimeType: MIMEType fileData: data params: @ {@ "username": @ "lisi"}] ;}- (void) upload :( NSString *) filename mimeType :( NSString *) mimeType fileData :( NSData *) fileData params :( NSDictionary *) params {// 1. request Path NSURL * url = [NSURL URLWithString: @ "http: // 192.168.15.172: 8080/Server/upload"]; // 2. create a POST request NSMutableURLRequest * request = [NSMutableURLRequest requestWithURL: url]; request. HTTPMethod = @ "POST"; // 3. set the Request body NSMutableData * body = [NSMutableData data]; // 3. 1. file parameter [body appendData: MalJobEncode (@ "--")]; [body appendData: MalJobEncode (MalJobFileBoundary)]; [body appendData: MalJobEncode (MalJobNewLine)]; NSString * disposition = [NSString stringWithFormat: @ "Content-Disposition: form-data; name = \" file \ "; filename = \" % @ \ "", filename]; [body appendData: MalJobEncode (disposition)]; [body appendData: MalJobEncode (MalJobNewLine)]; NSString * type = [NSString stringWithFormat: @ "Content-Type: % @", mimeType]; [body appendData: MalJobEncode (type)]; [body appendData: MalJobEncode (MalJobNewLine)]; [body appendData: MalJobEncode (MalJobNewLine)]; [body appendData: fileData]; [body appendData: MalJobEncode (MalJobNewLine)]; // 3. 2. non-file parameter [params enumerateKeysAndObjectsUsingBlock: ^ (id key, id obj, BOOL * stop) {[body appendData: MalJobEncode (@ "--")]; [body appendData: malJobEncode (MalJobFileBoundary)]; [body appendData: MalJobEncode (MalJobNewLine)]; NSString * disposition = [NSString stringWithFormat: @ "Content-Disposition: form-data; name = \ "% @ \" ", key]; [body appendData: MalJobEncode (disposition)]; [body appendData: MalJobEncode (MalJobNewLine)]; [body appendData: malJobEncode (MalJobNewLine)]; [body appendData: MalJobEncode ([obj description])]; [body appendData: MalJobEncode (MalJobNewLine)];}]; // 3. 3. end tag [body appendData: MalJobEncode (@ "--")]; [body appendData: MalJobEncode (MalJobFileBoundary)]; [body appendData: MalJobEncode (@ "--")]; [body appendData: MalJobEncode (MalJobNewLine)]; request. HTTPBody = body; // 4. set the Request Header (telling the server that the file data is sent to you this time, and telling the server that a file upload request is sent now) NSString * contentType = [NSString stringWithFormat: @ "multipart/form-data; boundary = % @", MalJobFileBoundary]; [request setValue: contentType forHTTPHeaderField: @ "Content-Type"]; // 5. send request [NSURLConnection failed: request queue: [inclumainqueue] completionHandler: ^ (NSURLResponse * response, NSData * data, NSError * connectionError) {NSDictionary * dict = [NSJSONSerialization failed: data options: NSJSONReadingMutableLeaves error: nil]; NSLog (@ "% @", dict) ;}] ;}@ end

File extraction instance

#import "MalJobViewController.h"#import "SSZipArchive.h"@implementation MalJobViewController- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view, typically from a nib.}- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    NSURL *url = [NSURL URLWithString:@"http://localhost:8080/Server/resources/images.zip"];    NSURLSessionDownloadTask *task = [[NSURLSession sharedSession] downloadTaskWithURL:url completionHandler:^(NSURL *location, NSURLResponse *response, NSError *error) {        NSString *caches = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];        [SSZipArchive unzipFileAtPath:location.path toDestination:caches];    }];    [task resume];}@end