public class unzip extends Activity {
/** Called when the activity is first created. */
static final int BUFFER = 2048;
TextView textView;
@Override
public void onCreate(Bundle savedInstanceState) {
textView = new TextView(this);
super.onCreate(savedInstanceState);
textView.setText(“Main Activity”);
extractZipfile();
setContentView(textView);
}
private void extractZipfile() {
String extractDir = getApplicationContext().getFilesDir()
.getAbsolutePath()
+ “/unzip/”;
try {
BufferedOutputStream dest = null;
ZipInputStream zis = new ZipInputStream(getResources()
.openRawResource(R.raw.book));
ZipEntry entry;
while ((entry = zis.getNextEntry()) != null) {
File file = new File(extractDir + entry.getName());
if (file.exists()) {
textView.append(“n” + file.getAbsolutePath() + “texists”);
continue;
}
if (entry.isDirectory()) {
if (!file.exists())
file.mkdirs();
textView.append(“nCreate directory: “
+ file.getAbsolutePath());
continue;
}
textView.append(“nExtracting:” + entry);
int count;
byte data[] = new byte[BUFFER];
textView.append(” to ” + file.getAbsolutePath());
FileOutputStream fos = new FileOutputStream(file);
dest = new BufferedOutputStream(fos, BUFFER);
while ((count = zis.read(data, 0, BUFFER)) != -1) {
dest.write(data, 0, count);
}
dest.flush();
dest.close();
}
zis.close();
} catch (Exception e) {
// TODO: handle exception
e.printStackTrace();
}
}
}
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