android-zip解压缩步骤

 1 /** 2      * 解压缩文件到指定的目录. 3      *  4      * @param unZipfileName 5      *            需要解压缩的文件（带路径） 6      * @param mDestPath 7      *            解压缩后存放的路径 8      **/ 9     public static void unZip(String unZipfileName, String mDestPath) {10         if (!mDestPath.endsWith("/")) {11             mDestPath = mDestPath + "/";12         }13         FileOutputStream fileOut = null;14         ZipInputStream zipIn = null;15         ZipEntry zipEntry = null;16         File file = null;17         int readedBytes = 0;18         byte buf[] = new byte[4096];19         try {20             zipIn = new ZipInputStream(new BufferedInputStream(21                     new FileInputStream(unZipfileName)));22             while ((zipEntry = zipIn.getNextEntry()) != null) {23                 file = new File(mDestPath + zipEntry.getName());24                 if (zipEntry.isDirectory()) {25                     file.mkdirs();26                 } else {27                     // 如果指定文件的目录不存在,则创建之.28                     File parent = file.getParentFile();29                     if (!parent.exists()) {30                         parent.mkdirs();31                     }32                     fileOut = new FileOutputStream(file);33                     while ((readedBytes = zipIn.read(buf)) > 0) {34                         fileOut.write(buf, 0, readedBytes);35                     }36                     fileOut.close();37                 }38                 zipIn.closeEntry();39             }40         } catch (IOException ioe) {41             ioe.printStackTrace();42 43         }44     }