压缩或压缩iOS sqlite数据库 [英] compress or zip iOS sqlite Database

问题描述

人们

如何压缩我的iOS应用的sqlite数据库?因为我试图用云计算它，但是我遇到了一些麻烦...

How Can I Zip my iOS app's sqlite database? Because I'm trying to sinc it with the cloud but im having some troubles...

我应该使用哪个类压缩它?请帮帮我！

Which classes I'm supposed to use to zip it ? please help me out!

推荐答案

您可以使用ZipArchive，它是用于压缩/解压缩的目标c包装程序- http://code.google.com/p/ziparchive/

You can use ZipArchive, its a objective c wrapper to zip/unzip - http://code.google.com/p/ziparchive/

对于zip:-

NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString* dPath = [paths objectAtIndex:0];
    NSString* txtfile = [dPath stringByAppendingPathComponent:@"test.txt"];
    NSString* zipfile = [dPath stringByAppendingPathComponent:@"test.zip"];
    ZipArchive* zip = [[ZipArchive alloc] init];
    BOOL ret = [zip CreateZipFile2:zipfile];
    ret = [zip addFileToZip:txtfile newname:@"test.txt"];//zip
    if( ![zip CloseZipFile2] )
    {
        zipfile = @"";
    }
    [zip release];
    NSLog(@"The file has been zipped");

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