iOS开发 - 文件压缩与解压缩

第三方解压缩框架——SSZipArchive

下载地址：https://github.com/samsoffes/ssziparchive 
注意：需要引入libz.dylib框架 

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// Unzipping</span>
<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *zipPath = @<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"path_to_your_zip_file"</span>;
<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *destinationPath =@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"path_to_the_folder_where_you_want_it_unzipped"</span>;
[SSZipArchive unzipFileAtPath:zipPath toDestination:destinationPath];

<span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// Zipping</span>
<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *zippedPath = @<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"path_where_you_want_the_file_created"</span>;
<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSArray</span> *inputPaths = [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSArray</span> arrayWithObjects:
                       [[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSBundle</span> mainBundle] pathForResource:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"photo1"</span> ofType:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"jpg"</span>],
                       [[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSBundle</span> mainBundle] pathForResource:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"photo2"</span> ofType:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"jpg"</span>]
                       <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>];
[SSZipArchive createZipFileAtPath:zippedPath withFilesAtPaths:inputPaths];
</code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li></ul>

一、技术方案 
1.第三方框架：SSZipArchive 
2.依赖的动态库：libz.dylib

二、压缩1 
1.第一个方法 
/** 
zipFile ：产生的zip文件的最终路径 
directory ： 需要进行的压缩的文件夹路径 
*/

<code class="hljs ini has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 102, 102);">[SSZipArchive createZipFileAtPath:zipFile withContentsOfDirectory:directory]</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

2.第一个方法 
/** 
zipFile ：产生的zip文件的最终路径 
files ： 这是一个数组，数组里面存放的是需要压缩的文件的路径 
files = @[@”/Users/apple/Destop/1.png”, @”/Users/apple/Destop/3.txt”] 
*/

<code class="hljs ini has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 102, 102);">[SSZipArchive createZipFileAtPath:zipFile withFilesAtPaths:files]</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

三、解压缩 
/** 
zipFile ：需要解压的zip文件的路径 
dest ： 解压到什么地方 
*/

<code class="hljs ini has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-title" style="box-sizing: border-box; color: rgb(0, 102, 102);">[SSZipArchive unzipFileAtPath:zipFile toDestination:dest]</span><span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">;</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li></ul>

文件压缩实例

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#import <span class="hljs-title" style="box-sizing: border-box;">"MalJobViewController.h"</span></span>
<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#import <span class="hljs-title" style="box-sizing: border-box;">"SSZipArchive.h"</span></span>

<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#define MalJobFileBoundary @"heima"</span>
<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#define MalJobNewLine @"\r\n"</span>
<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#define MalJobEncode(str) [str dataUsingEncoding:NSUTF8StringEncoding]</span>

<span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@interface</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">MalJobViewController</span> ()</span>

<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@end</span>

<span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@implementation</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">MalJobViewController</span></span>

- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)viewDidLoad
{
    [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">super</span> viewDidLoad];

}

- (<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *)MIMEType:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURL</span> *)url
{
    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 1.创建一个请求</span>
    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURLRequest</span> *request = [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURLRequest</span> requestWithURL:url];
    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 2.发送请求（返回响应）</span>
    NSURLResponse *response = <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>;
    [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURLConnection</span> sendSynchronousRequest:request returningResponse:&response error:<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>];
    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 3.获得MIMEType</span>
    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">return</span> response<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.MIMEType</span>;
}

- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *caches = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">YES</span>) lastObject];

    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 0.获得需要压缩的文件夹</span>
    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *images = [caches stringByAppendingPathComponent:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"images"</span>];

    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 1.创建一个zip文件（压缩）</span>
    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *zipFile = [caches stringByAppendingPathComponent:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"images.zip"</span>];

    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">BOOL</span> result = [SSZipArchive createZipFileAtPath:zipFile withContentsOfDirectory:images];
    <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">if</span>(result) {
        <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *MIMEType = [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span> MIMEType:[<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURL</span> fileURLWithPath:zipFile]];
        NSData *data = [NSData dataWithContentsOfFile:zipFile];
        [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">self</span> upload:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"images.zip"</span> mimeType:MIMEType fileData:data params:@{@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"username"</span> : @<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"lisi"</span>}];
    }
}


- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)upload:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *)filename mimeType:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *)mimeType fileData:(NSData *)fileData params:(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSDictionary</span> *)params
{
    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 1.请求路径</span>
    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURL</span> *url = [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURL</span> URLWithString:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"http://192.168.15.172:8080/Server/upload"</span>];

    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 2.创建一个POST请求</span>
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
    request<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.HTTPMethod</span> = @<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"POST"</span>;

    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 3.设置请求体</span>
    NSMutableData *body = [NSMutableData data];

    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 3.1.文件参数</span>
    [body appendData:MalJobEncode(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"--"</span>)];
    [body appendData:MalJobEncode(MalJobFileBoundary)];
    [body appendData:MalJobEncode(MalJobNewLine)];

    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *disposition = [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> stringWithFormat:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"Content-Disposition: form-data; name=\"file\"; filename=\"%@\""</span>, filename];
    [body appendData:MalJobEncode(disposition)];
    [body appendData:MalJobEncode(MalJobNewLine)];

    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *type = [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> stringWithFormat:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"Content-Type: %@"</span>, mimeType];
    [body appendData:MalJobEncode(type)];
    [body appendData:MalJobEncode(MalJobNewLine)];

    [body appendData:MalJobEncode(MalJobNewLine)];
    [body appendData:fileData];
    [body appendData:MalJobEncode(MalJobNewLine)];

    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 3.2.非文件参数</span>
    [params enumerateKeysAndObjectsUsingBlock:^(<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">id</span> key, <span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">id</span> obj, <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">BOOL</span> *stop) {
        [body appendData:MalJobEncode(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"--"</span>)];
        [body appendData:MalJobEncode(MalJobFileBoundary)];
        [body appendData:MalJobEncode(MalJobNewLine)];

        <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *disposition = [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> stringWithFormat:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"Content-Disposition: form-data; name=\"%@\""</span>, key];
        [body appendData:MalJobEncode(disposition)];
        [body appendData:MalJobEncode(MalJobNewLine)];

        [body appendData:MalJobEncode(MalJobNewLine)];
        [body appendData:MalJobEncode([obj description])];
        [body appendData:MalJobEncode(MalJobNewLine)];
    }];

    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 3.3.结束标记</span>
    [body appendData:MalJobEncode(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"--"</span>)];
    [body appendData:MalJobEncode(MalJobFileBoundary)];
    [body appendData:MalJobEncode(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"--"</span>)];
    [body appendData:MalJobEncode(MalJobNewLine)];

    request<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.HTTPBody</span> = body;

    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 4.设置请求头(告诉服务器这次传给你的是文件数据，告诉服务器现在发送的是一个文件上传请求)</span>
    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *contentType = [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> stringWithFormat:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"multipart/form-data; boundary=%@"</span>, MalJobFileBoundary];
    [request setValue:contentType forHTTPHeaderField:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"Content-Type"</span>];

    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// 5.发送请求</span>
    [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURLConnection</span> sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSError</span> *connectionError) {
        <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSDictionary</span> *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:<span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">nil</span>];
        <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSLog</span>(@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"%@"</span>, dict);
    }];
}
<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@end</span></code><ul class="pre-numbering" style="box-sizing: border-box; position: absolute; width: 50px; background-color: rgb(238, 238, 238); top: 0px; left: 0px; margin: 0px; padding: 6px 0px 40px; border-right-width: 1px; border-right-style: solid; border-right-color: rgb(221, 221, 221); list-style: none; text-align: right;"><li style="box-sizing: border-box; padding: 0px 5px;">1</li><li style="box-sizing: border-box; padding: 0px 5px;">2</li><li style="box-sizing: border-box; padding: 0px 5px;">3</li><li style="box-sizing: border-box; padding: 0px 5px;">4</li><li style="box-sizing: border-box; padding: 0px 5px;">5</li><li style="box-sizing: border-box; padding: 0px 5px;">6</li><li style="box-sizing: border-box; padding: 0px 5px;">7</li><li style="box-sizing: border-box; padding: 0px 5px;">8</li><li style="box-sizing: border-box; padding: 0px 5px;">9</li><li style="box-sizing: border-box; padding: 0px 5px;">10</li><li style="box-sizing: border-box; padding: 0px 5px;">11</li><li style="box-sizing: border-box; padding: 0px 5px;">12</li><li style="box-sizing: border-box; padding: 0px 5px;">13</li><li style="box-sizing: border-box; padding: 0px 5px;">14</li><li style="box-sizing: border-box; padding: 0px 5px;">15</li><li style="box-sizing: border-box; padding: 0px 5px;">16</li><li style="box-sizing: border-box; padding: 0px 5px;">17</li><li style="box-sizing: border-box; padding: 0px 5px;">18</li><li style="box-sizing: border-box; padding: 0px 5px;">19</li><li style="box-sizing: border-box; padding: 0px 5px;">20</li><li style="box-sizing: border-box; padding: 0px 5px;">21</li><li style="box-sizing: border-box; padding: 0px 5px;">22</li><li style="box-sizing: border-box; padding: 0px 5px;">23</li><li style="box-sizing: border-box; padding: 0px 5px;">24</li><li style="box-sizing: border-box; padding: 0px 5px;">25</li><li style="box-sizing: border-box; padding: 0px 5px;">26</li><li style="box-sizing: border-box; padding: 0px 5px;">27</li><li style="box-sizing: border-box; padding: 0px 5px;">28</li><li style="box-sizing: border-box; padding: 0px 5px;">29</li><li style="box-sizing: border-box; padding: 0px 5px;">30</li><li style="box-sizing: border-box; padding: 0px 5px;">31</li><li style="box-sizing: border-box; padding: 0px 5px;">32</li><li style="box-sizing: border-box; padding: 0px 5px;">33</li><li style="box-sizing: border-box; padding: 0px 5px;">34</li><li style="box-sizing: border-box; padding: 0px 5px;">35</li><li style="box-sizing: border-box; padding: 0px 5px;">36</li><li style="box-sizing: border-box; padding: 0px 5px;">37</li><li style="box-sizing: border-box; padding: 0px 5px;">38</li><li style="box-sizing: border-box; padding: 0px 5px;">39</li><li style="box-sizing: border-box; padding: 0px 5px;">40</li><li style="box-sizing: border-box; padding: 0px 5px;">41</li><li style="box-sizing: border-box; padding: 0px 5px;">42</li><li style="box-sizing: border-box; padding: 0px 5px;">43</li><li style="box-sizing: border-box; padding: 0px 5px;">44</li><li style="box-sizing: border-box; padding: 0px 5px;">45</li><li style="box-sizing: border-box; padding: 0px 5px;">46</li><li style="box-sizing: border-box; padding: 0px 5px;">47</li><li style="box-sizing: border-box; padding: 0px 5px;">48</li><li style="box-sizing: border-box; padding: 0px 5px;">49</li><li style="box-sizing: border-box; padding: 0px 5px;">50</li><li style="box-sizing: border-box; padding: 0px 5px;">51</li><li style="box-sizing: border-box; padding: 0px 5px;">52</li><li style="box-sizing: border-box; padding: 0px 5px;">53</li><li style="box-sizing: border-box; padding: 0px 5px;">54</li><li style="box-sizing: border-box; padding: 0px 5px;">55</li><li style="box-sizing: border-box; padding: 0px 5px;">56</li><li style="box-sizing: border-box; padding: 0px 5px;">57</li><li style="box-sizing: border-box; padding: 0px 5px;">58</li><li style="box-sizing: border-box; padding: 0px 5px;">59</li><li style="box-sizing: border-box; padding: 0px 5px;">60</li><li style="box-sizing: border-box; padding: 0px 5px;">61</li><li style="box-sizing: border-box; padding: 0px 5px;">62</li><li style="box-sizing: border-box; padding: 0px 5px;">63</li><li style="box-sizing: border-box; padding: 0px 5px;">64</li><li style="box-sizing: border-box; padding: 0px 5px;">65</li><li style="box-sizing: border-box; padding: 0px 5px;">66</li><li style="box-sizing: border-box; padding: 0px 5px;">67</li><li style="box-sizing: border-box; padding: 0px 5px;">68</li><li style="box-sizing: border-box; padding: 0px 5px;">69</li><li style="box-sizing: border-box; padding: 0px 5px;">70</li><li style="box-sizing: border-box; padding: 0px 5px;">71</li><li style="box-sizing: border-box; padding: 0px 5px;">72</li><li style="box-sizing: border-box; padding: 0px 5px;">73</li><li style="box-sizing: border-box; padding: 0px 5px;">74</li><li style="box-sizing: border-box; padding: 0px 5px;">75</li><li style="box-sizing: border-box; padding: 0px 5px;">76</li><li style="box-sizing: border-box; padding: 0px 5px;">77</li><li style="box-sizing: border-box; padding: 0px 5px;">78</li><li style="box-sizing: border-box; padding: 0px 5px;">79</li><li style="box-sizing: border-box; padding: 0px 5px;">80</li><li style="box-sizing: border-box; padding: 0px 5px;">81</li><li style="box-sizing: border-box; padding: 0px 5px;">82</li><li style="box-sizing: border-box; padding: 0px 5px;">83</li><li style="box-sizing: border-box; padding: 0px 5px;">84</li><li style="box-sizing: border-box; padding: 0px 5px;">85</li><li style="box-sizing: border-box; padding: 0px 5px;">86</li><li style="box-sizing: border-box; padding: 0px 5px;">87</li><li style="box-sizing: border-box; padding: 0px 5px;">88</li><li style="box-sizing: border-box; padding: 0px 5px;">89</li><li style="box-sizing: border-box; padding: 0px 5px;">90</li><li style="box-sizing: border-box; padding: 0px 5px;">91</li><li style="box-sizing: border-box; padding: 0px 5px;">92</li><li style="box-sizing: border-box; padding: 0px 5px;">93</li><li style="box-sizing: border-box; padding: 0px 5px;">94</li><li style="box-sizing: border-box; padding: 0px 5px;">95</li><li style="box-sizing: border-box; padding: 0px 5px;">96</li><li style="box-sizing: border-box; padding: 0px 5px;">97</li><li style="box-sizing: border-box; padding: 0px 5px;">98</li><li style="box-sizing: border-box; padding: 0px 5px;">99</li><li style="box-sizing: border-box; padding: 0px 5px;">100</li><li style="box-sizing: border-box; padding: 0px 5px;">101</li><li style="box-sizing: border-box; padding: 0px 5px;">102</li><li style="box-sizing: border-box; padding: 0px 5px;">103</li><li style="box-sizing: border-box; padding: 0px 5px;">104</li><li style="box-sizing: border-box; padding: 0px 5px;">105</li><li style="box-sizing: border-box; padding: 0px 5px;">106</li><li style="box-sizing: border-box; padding: 0px 5px;">107</li><li style="box-sizing: border-box; padding: 0px 5px;">108</li><li style="box-sizing: border-box; padding: 0px 5px;">109</li><li style="box-sizing: border-box; padding: 0px 5px;">110</li><li style="box-sizing: border-box; padding: 0px 5px;">111</li><li style="box-sizing: border-box; padding: 0px 5px;">112</li></ul>

文件解压缩实例

<code class="hljs objectivec has-numbering" style="display: block; padding: 0px; background-color: transparent; color: inherit; box-sizing: border-box; font-family: 'Source Code Pro', monospace;font-size:undefined; white-space: pre; border-top-left-radius: 0px; border-top-right-radius: 0px; border-bottom-right-radius: 0px; border-bottom-left-radius: 0px; word-wrap: normal; background-position: initial initial; background-repeat: initial initial;"><span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#import <span class="hljs-title" style="box-sizing: border-box;">"MalJobViewController.h"</span></span>
<span class="hljs-preprocessor" style="color: rgb(68, 68, 68); box-sizing: border-box;">#import <span class="hljs-title" style="box-sizing: border-box;">"SSZipArchive.h"</span></span>
<span class="hljs-class" style="box-sizing: border-box;"><span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@implementation</span> <span class="hljs-title" style="box-sizing: border-box; color: rgb(102, 0, 102);">MalJobViewController</span></span>

- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)viewDidLoad
{
    [<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">super</span> viewDidLoad];
    <span class="hljs-comment" style="color: rgb(136, 0, 0); box-sizing: border-box;">// Do any additional setup after loading the view, typically from a nib.</span>
}

- (<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">void</span>)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURL</span> *url = [<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURL</span> URLWithString:@<span class="hljs-string" style="color: rgb(0, 136, 0); box-sizing: border-box;">"http://localhost:8080/Server/resources/images.zip"</span>];

    NSURLSessionDownloadTask *task = [[NSURLSession sharedSession] downloadTaskWithURL:url completionHandler:^(<span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSURL</span> *location, NSURLResponse *response, <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSError</span> *error) {
        <span class="hljs-built_in" style="color: rgb(102, 0, 102); box-sizing: border-box;">NSString</span> *caches = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, <span class="hljs-literal" style="color: rgb(0, 102, 102); box-sizing: border-box;">YES</span>) lastObject];
        [SSZipArchive unzipFileAtPath:location<span class="hljs-variable" style="color: rgb(102, 0, 102); box-sizing: border-box;">.path</span> toDestination:caches];
    }];
    [task resume];
}

<span class="hljs-keyword" style="color: rgb(0, 0, 136); box-sizing: border-box;">@end</span></code>