listview - Converting android file browser ListActivity example into a Fragment -

i trying figure out way use example in fragment: http://sampleprogramz.com/android/browse.php

i have changed oncreate method oncreateview method , have tried correct of errors android studio flags can't seem working.

here code:

import java.io.file; import java.io.filenamefilter; import java.util.arraylist; import java.util.collections; import java.util.comparator; import java.util.list; import android.app.listactivity; import android.content.context; import android.content.intent; import android.os.bundle; import android.support.v4.app.fragment; import android.support.v4.app.listfragment; import android.view.layoutinflater; import android.view.view; import android.view.viewgroup; import android.widget.arrayadapter; import android.widget.imageview; import android.widget.listview; import android.widget.textview;  import static android.app.activity.result_ok;  public class filepicker extends listfragment {      public final static string extra_file_path = "file_path";     public final static string extra_show_hidden_files = "show_hidden_files";     public final static string extra_accepted_file_extensions = "accepted_file_extensions";     private final static string default_initial_directory = "/";      protected file directory;     protected arraylist<file> files;     protected filepickerlistadapter adapter;     protected boolean showhiddenfiles = false;     protected string[] acceptedfileextensions;       @override     public view oncreateview(layoutinflater inflater, viewgroup container, bundle savedinstancestate) {          view emptyview = inflater.inflate(r.layout.empty_view, container, false);         ((viewgroup) getlistview().getparent()).addview(emptyview);         getlistview().setemptyview(emptyview);          // set initial directory         directory = new file(default_initial_directory);          // initialize arraylist         files = new arraylist<file>();          // set listadapter         adapter = new filepickerlistadapter(getactivity(), files);         setlistadapter(adapter);          // initialize extensions array allow file extensions         acceptedfileextensions = new string[] {".rc"};          // intent extras         if(getactivity().getintent().hasextra(extra_file_path))             directory = new file(getactivity().getintent().getstringextra(extra_file_path));          if(getactivity().getintent().hasextra(extra_show_hidden_files))             showhiddenfiles = getactivity().getintent().getbooleanextra(extra_show_hidden_files, false);          if(getactivity().getintent().hasextra(extra_accepted_file_extensions)) {              arraylist<string> collection =                     getactivity().getintent().getstringarraylistextra(extra_accepted_file_extensions);              acceptedfileextensions = (string[])                     collection.toarray(new string[collection.size()]);         }         return emptyview;     }      @override     public void onresume() {         refreshfileslist();         super.onresume();     }      protected void refreshfileslist() {          files.clear();         extensionfilenamefilter filter =                 new extensionfilenamefilter(acceptedfileextensions);          file[] files = directory.listfiles(filter);          if(files != null && files.length > 0) {              for(file f : files) {                  if(f.ishidden() && !showhiddenfiles) {                      continue;                 }                  files.add(f);             }              collections.sort(files, new filecomparator());         }          adapter.notifydatasetchanged();     }        public void onlistitemclick(listview l, view v, int position, long id) {          file newfile = (file)l.getitematposition(position);          if(newfile.isfile()) {              intent = new intent();             extra.putextra(extra_file_path, newfile.getabsolutepath());             getactivity().setresult(result_ok, extra);             getactivity().finish();         }         else {              directory = newfile;             refreshfileslist();         }          super.onlistitemclick(l, v, position, id);     }      private class filepickerlistadapter extends arrayadapter<file> {          private list<file> mobjects;          public filepickerlistadapter(context context, list<file> objects) {              super(context, r.layout.list_item, android.r.id.text1, objects);             mobjects = objects;         }          @override         public view getview(int position, view convertview, viewgroup parent) {              view row = null;              if(convertview == null) {                  layoutinflater inflater = (layoutinflater)                         getcontext().getsystemservice(context.layout_inflater_service);                  row = inflater.inflate(r.layout.list_item, parent, false);             }             else                 row = convertview;              file object = mobjects.get(position);              imageview imageview = (imageview)row.findviewbyid(r.id.file_picker_image);             textview textview = (textview)row.findviewbyid(r.id.file_picker_text);             textview.setsingleline(true);             textview.settext(object.getname());              if(object.isfile())                 imageview.setimageresource(r.drawable.sound);              else                 imageview.setimageresource(r.drawable.folder);              return row;         }     }      private class filecomparator implements comparator<file> {          public int compare(file f1, file f2) {              if(f1 == f2)                 return 0;              if(f1.isdirectory() && f2.isfile())                 // show directories above files                 return -1;              if(f1.isfile() && f2.isdirectory())                 // show files below directories                 return 1;              // sort directories alphabetically             return f1.getname().comparetoignorecase(f2.getname());         }     }      private class extensionfilenamefilter implements filenamefilter {          private string[] extensions;          public extensionfilenamefilter(string[] extensions) {              super();             extensions = extensions;         }          public boolean accept(file dir, string filename) {              if(new file(dir, filename).isdirectory()) {                  // accept directory names                 return true;             }              if(extensions != null && extensions.length > 0) {                  for(int = 0; < extensions.length; i++) {                      if(filename.endswith(extensions[i])) {                          // filename ends extension                         return true;                     }                 }                 // filename did not match of extensions                 return false;             }             // no extensions has been set. accept file extensions.             return true;         }     } } 

thanks.

i able working inflating new xml layout filepicker fragment,

i replaced:

view emptyview = inflater.inflate(r.layout.empty_view, container, false);     ((viewgroup) getlistview().getparent()).addview(emptyview);     getlistview().setemptyview(emptyview);      // set initial directory     directory = new file(default_initial_directory);      // initialize arraylist     files = new arraylist<file>();      // set listadapter     adapter = new filepickerlistadapter(getactivity(), files);     setlistadapter(adapter); 

with:

view viewlist = inflater.inflate(r.layout.file_picker, container, false);        lv = (listview) viewlist.findviewbyid(r.id.filebrowselist);      // set initial directory     directory = new file(string.valueof(default_initial_directory));      // initialize arraylist     files = new arraylist<file>();       // set listadapter     adapter = new filepickerlistadapter(getactivity(), files);     lv.setadapter(adapter);