Adobe AIR:解压Zip

Adobe AIR中解压ZIP文件代码分享

最新推荐文章于 2024-11-15 16:00:00 发布

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博客分享了一段在Adobe AIR中解压ZIP文件的代码。介绍了ZipFile类构造函数以IDataStream对象为参数，可使用包含ZIP文件数据的ByteArray或FileStream对象，还说明了通过相关属性和方法获取文件数据等内容。

下面是一段在Adobe air中解压zip的代码，是从一个老外的博客中转来的：

Today, I'm going to show you how you can use the nochump library to extract zip files with Adobe AIR.

The ZipFile class constructor takes an IDataStream object as the parameter.Here you can use a ByteArray or a FileStream object which contains the data of the zip file. The entries property of the ZipFile object contains all the files in the archive as ZipEntry objects. Here the directory itself(excluding the files inside it) also counts as a ZipEntry object, so make sure to check using the isDirectory property of the ZipEntry object. Finally get the data of a single file using zipFile.getInput() method.

Here's the code :

   import flash.filesystem.*;
   import flash.net.FileFilter;
   
   import nochump.util.zip.*;
   
   private var zipInput:File = new File();
   private var zipOutput:File = new File();
   private var zipFile:ZipFile;
   
   private function loadZIP():void
   {
    var filter:FileFilter = new FileFilter("ZIP","*.zip");
    zipInput.browseForOpen("Open ZIP file",[filter]);
    zipInput.addEventListener(Event.SELECT, onSelect);
   }
   
   private function onSelect(e:Event):void
   {
    var stream:FileStream = new FileStream();
    stream.open(zipInput,FileMode.READ);
    
    zipFile = new ZipFile(stream);
    extract.enabled = true;
   }
   
   private function extractZIP():void
   {
    zipOutput.browseForDirectory("Select Directory for extract");
    zipOutput.addEventListener(Event.SELECT, onDirSelect);
   }
   
   private function onDirSelect(e:Event):void
   {
    for(var i:uint = 0; i < zipFile.entries.length; i++)
    {
     var zipEntry:ZipEntry = zipFile.entries[i] as ZipEntry;
     // The class considers the folder itself (without the contents) as a ZipEntry.
     // So the code creates the subdirectories as expected.
     if(!zipEntry.isDirectory())
     {
      var targetDir:File = e.target as File;
      var entryFile:File = new File();
      entryFile = targetDir.resolvePath(zipEntry.name);
      var entry:FileStream = new FileStream();
      entry.open(entryFile, FileMode.WRITE);
      entry.writeBytes(zipFile.getInput(zipEntry));
      entry.close();
     }
    }
   }

You can download the project archive here. Happy experimenting

from: http://pradeek.blogspot.com/2009/05/extracting-zip-files-in-adobe-air-with.html