zip - Selecting files and zipping it in android -

i developing android app needs select files storage system , zip up, have command run on it.

i've tried picking files using following code:

intent intent=new intent(); intent.settype("image/*,video/*");               intent.putextra(intent.extra_allow_multiple, true); intent.setaction(intent.action_get_content);                 startactivityforresult(intent.createchooser(intent,"select picture"), 1); 

can me on how this?

file selecting code looks fine. here example of it. see link. android have huge native support zipping , unzipping file. here examples might you.

zipping file

public void zip(string[] _files, string zipfilename) {     try {         bufferedinputstream origin = null;         fileoutputstream dest = new fileoutputstream(zipfilename);         zipoutputstream out = new zipoutputstream(new bufferedoutputstream(                 dest));         byte data[] = new byte[buffer];          (int = 0; < _files.length; i++) {             log.v("compress", "adding: " + _files[i]);             fileinputstream fi = new fileinputstream(_files[i]);             origin = new bufferedinputstream(fi, buffer);              zipentry entry = new zipentry(_files[i].substring(_files[i].lastindexof("/") + 1));             out.putnextentry(entry);             int count;              while ((count = origin.read(data, 0, buffer)) != -1) {                 out.write(data, 0, count);             }             origin.close();         }          out.close();     } catch (exception e) {         e.printstacktrace();     } } 

see this , this further description.