在AndroidManifest.xml里添加权限：
工具类：
public class ZIP {
public ZIP(){
}
/**
* DeCompress the ZIP to the path
* @param zipFileString name of ZIP
* @param outPathString path to be unZIP
* @throws Exception
*/
public static void UnZipFolder(String zipFileString, String outPathString) throws Exception {
ZipInputStream inZip = new ZipInputStream(new FileInputStream(zipFileString));
ZipEntry zipEntry;
String szName = "";
while ((zipEntry = inZip.getNextEntry()) != null) {
szName = zipEntry.getName();
if (zipEntry.isDirectory()) {
// get the folder name of the widget
szName = szName.substring(0, szName.length() - 1);
File folder = new File(outPathString + File.separator + szName);
folder.mkdirs();
} else {
File file = new File(outPathString + File.separator + szName);
file.createNewFile();
// get the output stream of the file
FileOutputStream out = new FileOutputStream(file);
int len;
byte[] buffer = new byte[1024];
// read (len) bytes into buffer
while ((len = inZip.read(buffer)) != -1) {
// write (len) byte from buffer at the position 0
out.write(buffer, 0, len);
out.flush();
}
out.close();
}
}
inZip.close();
}
/**
* Compress file and folder
* @param srcFileString file or folder to be Compress
* @param zipFileString the path name of result ZIP
* @throws Exception
*/
public static void ZipFolder(String srcFileString, String zipFileString)throws Exception {
//create ZIP
ZipOutputStream outZip = new ZipOutputStream(new FileOutputStream(zipFileString));
//create the file
File file = new File(srcFileString);
//compress
ZipFiles(file.getParent()+File.separator, file.getName(), outZip);
//finish and close
outZip.finish();
outZip.close();
}
/**
* compress files
* @param folderString
* @param fileString
* @param zipOutputSteam
* @throws Exception
*/
private static void ZipFiles(String folderString, String fileString, ZipOutputStream zipOutputSteam)throws Exception{
if(zipOutputSteam == null)
return;
File file = new File(folderString+fileString);
if (file.isFile()) {
ZipEntry zipEntry = new ZipEntry(fileString);
FileInputStream inputStream = new FileInputStream(file);
zipOutputSteam.putNextEntry(zipEntry);
int len;
byte[] buffer = new byte[4096];
while((len=inputStream.read(buffer)) != -1)
{
zipOutputSteam.write(buffer, 0, len);
}
zipOutputSteam.closeEntry();
}
else {
//folder
String fileList[] = file.list();
//no child file and compress
if (fileList.length <= 0) {
ZipEntry zipEntry = new ZipEntry(fileString+File.separator);
zipOutputSteam.putNextEntry(zipEntry);
zipOutputSteam.closeEntry();
}
//child files and recursion
for (int i = 0; i < fileList.length; i++) {
ZipFiles(folderString, fileString+java.io.File.separator+fileList[i], zipOutputSteam);
}//end of for
}
}
/**
* return the InputStream of file in the ZIP
* @param zipFileString name of ZIP
* @param fileString name of file in the ZIP
* @return InputStream
* @throws Exception
*/
public static InputStream UpZip(String zipFileString, String fileString)throws Exception {
ZipFile zipFile = new ZipFile(zipFileString);
ZipEntry zipEntry = zipFile.getEntry(fileString);
return zipFile.getInputStream(zipEntry);
}
/**
* return files list(file and folder) in the ZIP
* @param zipFileString ZIP name
* @param bContainFolder contain folder or not
* @param bContainFile contain file or not
* @return
* @throws Exception
*/
public static List GetFileList(String zipFileString, boolean bContainFolder, boolean bContainFile)throws Exception {
List fileList = new ArrayList();
ZipInputStream inZip = new ZipInputStream(new FileInputStream(zipFileString));
ZipEntry zipEntry;
String szName = "";
while ((zipEntry = inZip.getNextEntry()) != null) {
szName = zipEntry.getName();
if (zipEntry.isDirectory()) {
// get the folder name of the widget
szName = szName.substring(0, szName.length() - 1);
File folder = new File(szName);
if (bContainFolder) {
fileList.add(folder);
}
} else {
File file = new File(szName);
if (bContainFile) {
fileList.add(file);
}
}
}
inZip.close();
return fileList;
}
}
