iPhone开发读取ZIP文件

使用Objective-zip的库读取zip文件,地址:http://code.google.com/p/objective-zip/

 

可以在iphone上进行运行.

 

简单的测试代码:

 

#import <Foundation/Foundation.h>
#import "Objective-Zip/ZipFile.h"
#import "Objective-Zip/ZipException.h"
#import "Objective-Zip/FileInZipInfo.h"
int main (int argc, const char * argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];

    // insert code here...
    NSLog(@"Hello, World!");

    //初始化目录
    NSString *documentsDir= [NSHomeDirectory() stringByAppendingPathComponent:@"Documents"];
    NSString *filePath= [documentsDir stringByAppendingPathComponent:@"5.zip"];
    //此文件在zip包中,我们就读取此文件
    NSString *f = @"META-INF/container.xml";

    @try {

    ZipFile *unzipFile= [[ZipFile alloc] initWithFileName:filePath mode:ZipFileModeUnzip];
    NSArray *infos= [unzipFile listFileInZipInfos];

        FileInZipInfo *currentInfo=Nil;

        //列出所有在zip中的文件信息
    for (FileInZipInfo *info in infos) {
        //@"- %@ %@ %d (%d)"
        NSString *fileInfo= [NSString stringWithFormat:@"%@", info.name, info.date, info.size, info.level];
        if([fileInfo isEqualToString:f]){

            NSLog(@"%@",fileInfo);


        }
            NSLog(@"%@",fileInfo);

    }

        //直接定位到要读取的文件
    if([unzipFile locateFileInZip:f]){

            //取得读取文件流
        ZipReadStream *read2= [unzipFile readCurrentFileInZip];
        currentInfo = [unzipFile getCurrentFileInZipInfo];

        //开始进行读取
        NSMutableData *data2= [[[NSMutableData alloc] initWithLength:currentInfo.length] autorelease];
        int bytesRead2= [read2 readDataWithBuffer:data2];

        NSLog(@"SIZE IS:%d,Read size is :%d",currentInfo.length,bytesRead2);

        NSString *fileText2= [[[NSString alloc] initWithBytes:[data2 bytes] length:bytesRead2 encoding:NSUTF8StringEncoding] autorelease];
        NSLog(@"%@",fileText2);

        }


        [unzipFile release];
    } @catch (ZipException *ze) {

        NSLog(@"ZipException caught: %d - %@", ze.error, [ze reason]);

    } @catch (id e) {

        NSLog(@"Exception caught: %@ - %@", [[e class] description], [e description]);
    }

    [pool drain];
    return 0;
}