iOS开发之压缩与解压文件

ZipArchive* zip = [[ZipArchive alloc] init];

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentpath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;

NSString* l_zipfile = [documentpath stringByAppendingString:@"/test.zip"] ;

NSString* image1 = [documentpath stringByAppendingString:@"/image1.jpg"] ;

NSString* image2 = [documentpath stringByAppendingString:@"/image2.jpg"] ;      

BOOL ret = [zip CreateZipFile2:l_zipfile];

ret = [zip addFileToZip:image1 newname:@"image1.jpg"];

ret = [zip addFileToZip:image2 newname:@"image2.jpg"];

if( ![zip CloseZipFile2] )

  {

     l_zipfile = @"";

  }

[zip release];

ZipArchive* zip = [[ZipArchive alloc] init];

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

NSString *documentpath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;

NSString* l_zipfile = [documentpath stringByAppendingString:@"/test.zip"] ;

NSString* unzipto = [documentpath stringByAppendingString:@"/test"] ;

if( [zip UnzipOpenFile:l_zipfile] )

 {

   BOOL ret = [zip UnzipFileTo:unzipto overWrite:YES];

   if( NO==ret )

   {

   }

   [zip UnzipCloseFile];

 }

[zip release];