iOS开发之压缩与解压文件

转：本文固定链接: http://www.istar.name/blog/ios-ziparchive | Star's Blog

ziparchive是基于开源代码”MiniZip”的zip压缩与解压的Objective-C 的Class,使用起来非常的简单
方法：从http://code.google.com/p/ziparchive/ 上下载ZipArchive.zip，解压后将代码加入工程中，并且把zlib库添加到工程中
使用方法：
1. 压缩:ZipArchive可以压缩多个文件,只需要把文件一一addFileToZip即可.

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];

2. 解压缩:

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];