Android: 解壓縮檔zip

當程式從網站下載檔案時,為了節省頻寬,通常會對檔案進行壓縮.
Java本身就有處理Zip/Unzip的API.見底下程式碼:

public void unZip(InputStream is, String outPathString) {
   try {
    ZipInputStream Zis = new ZipInputStream(is);
    ZipEntry zipEntry;
    String szName = "";
    while ((zipEntry = Zis.getNextEntry()) != null) {
      szName = zipEntry.getName();
      if (zipEntry.isDirectory()) {
        File folder = new File(outPathString + File.separator + szName);
        folder.mkdirs();
      } else {
        FileOutputStream out=new FileOutputStream(outPathString+
                File.separator+szName);
        int len;
        byte[] buffer = new byte[1024];
        while ((len = inZip.read(buffer)) != -1) {
           out.write(buffer, 0, len);
           out.flush();
        }
        out.close();
      }
   }
   Zis.close();
  } catch (Exception e) {}
}