android busybox压缩命令 android zip

android 解压缩zip包，首先一定要在menifest.xml中加入sdcard读写权限，如下：

<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

实现代码：

public static void unZip(String unZipfileName, String mDestPath) {// unZipfileName需要解压的zip文件全路经
 
 FileOutputStream fileOut;
 ZipInputStream zipIn;
 ZipEntry zipEntry;
 File file;
 int readedBytes;
 byte buf[] = new byte[4096];
 try {
 zipIn = new ZipInputStream(new BufferedInputStream(
 new FileInputStream(unZipfileName)));
 while ((zipEntry = zipIn.getNextEntry()) != null) {
 file = new File(mDestPath + zipEntry.getName());
 if (zipEntry.isDirectory()) {
 file.mkdirs();
 } else {
 // 如果指定文件的目录不存在,则创建之.
 File parent = file.getParentFile();
 if (!parent.exists()) {
 parent.mkdirs();
 }
 fileOut = new FileOutputStream(file);
 while ((readedBytes = zipIn.read(buf)) > 0) {
 fileOut.write(buf, 0, readedBytes);
 }
 fileOut.close();
 }
 zipIn.closeEntry();
 }
 } catch (IOException ioe) {
 ioe.printStackTrace();
 }
 }