Fixed NPE on list of shares in SearchShareesFragment; and some clean-up

src/com/owncloud/android/ui/activity/ShareActivity.java

@@ -147,9 +147,9 @@ public class ShareActivity extends FileActivity
     }
 
     @Override
-    public void showSearchUsersAndGroups(ArrayList<OCShare> shares) {
+    public void showSearchUsersAndGroups() {
         FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
-        mSearchFragment = SearchShareesFragment.newInstance(getFile(), getAccount(), shares);
+        mSearchFragment = SearchShareesFragment.newInstance(getFile(), getAccount());
         ft.hide(mShareFileFragment);
         ft.add(R.id.share_fragment_container, mSearchFragment, TAG_SEARCH_FRAGMENT);
         ft.addToBackStack(TAG_SEARCH_FRAGMENT);

src/com/owncloud/android/ui/fragment/SearchShareesFragment.java

@@ -60,11 +60,11 @@ public class SearchShareesFragment extends Fragment implements ShareUserListAdap
     // the fragment initialization parameters
     private static final String ARG_FILE = "FILE";
     private static final String ARG_ACCOUNT = "ACCOUNT";
-    private static final String ARG_SHARES = "SHARES";
 
     // Parameters
     private OCFile mFile;
     private Account mAccount;
+
     private ArrayList<OCShare> mShares;
     private ShareUserListAdapter mUserGroupsAdapter = null;
 
@@ -73,18 +73,15 @@ public class SearchShareesFragment extends Fragment implements ShareUserListAdap
     /**
      * Public factory method to create new SearchShareesFragment instances.
      *
-     * @param fileToShare   An {@link OCFile} to show in the fragment
+     * @param fileToShare   An {@link OCFile} to be shared
      * @param account       An ownCloud account
-     * @param
      * @return A new instance of fragment SearchShareesFragment.
      */
-    // TODO: Rename and change types and number of parameters
-    public static SearchShareesFragment newInstance(OCFile fileToShare, Account account, ArrayList<OCShare> shares) {
+    public static SearchShareesFragment newInstance(OCFile fileToShare, Account account) {
         SearchShareesFragment fragment = new SearchShareesFragment();
         Bundle args = new Bundle();
         args.putParcelable(ARG_FILE, fileToShare);
         args.putParcelable(ARG_ACCOUNT, account);
-        args.putParcelableArrayList(ARG_SHARES, shares);
         fragment.setArguments(args);
         return fragment;
     }
@@ -99,7 +96,6 @@ public class SearchShareesFragment extends Fragment implements ShareUserListAdap
         if (getArguments() != null) {
             mFile = getArguments().getParcelable(ARG_FILE);
             mAccount = getArguments().getParcelable(ARG_ACCOUNT);
-            mShares = getArguments().getParcelableArrayList(ARG_SHARES);
         }
 
     }
@@ -134,18 +130,19 @@ public class SearchShareesFragment extends Fragment implements ShareUserListAdap
             }
         });
 
-        // Show data: Fill in list of users and groups
-        ListView usersList = (ListView) view.findViewById(R.id.searchUsersListView);
-        mUserGroupsAdapter = new ShareUserListAdapter(getActivity().getApplicationContext(),
-                R.layout.share_user_item, mShares, this);
-        if (mShares.size() > 0) {
-            usersList.setVisibility(View.VISIBLE);
-            usersList.setAdapter(mUserGroupsAdapter);
-        }
-
         return view;
     }
 
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+
+        // Load data into the list
+        refreshUsersOrGroupsListFromDB();
+    }
+
+
     /**
      * Get users and groups fromn the DB to fill in the "share with" list
      */

src/com/owncloud/android/ui/fragment/ShareFileFragment.java

@@ -2,6 +2,7 @@
  *   ownCloud Android client application
  *
  *   @author masensio
+ *   @author David A. Velasco
  *   Copyright (C) 2015 ownCloud Inc.
  *
  *   This program is free software: you can redistribute it and/or modify
@@ -142,7 +143,7 @@ public class ShareFileFragment extends Fragment
                  boolean shareWithUsersEnable = AccountUtils.hasSearchUsersSupport(mAccount);
                 if (shareWithUsersEnable) {
                     // Show Search Fragment
-                    mListener.showSearchUsersAndGroups(mShares);
+                    mListener.showSearchUsersAndGroups();
                 } else {
                     String message = getString(R.string.share_sharee_unavailable);
                     Toast.makeText(getActivity(), message, Toast.LENGTH_LONG).show();
@@ -157,8 +158,13 @@ public class ShareFileFragment extends Fragment
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
-        // Load data to the list (start process with an Async Task)
-        mListener.refreshUsersOrGroupsListFromServer();
+        // Load data into the list
+        refreshUsersOrGroupsListFromDB();
+
+        // Request for a refresh of the data through the server (starts an Async Task)
+        if (mListener != null) {
+            mListener.refreshUsersOrGroupsListFromServer();
+        }
     }
 
     @Override
@@ -192,8 +198,12 @@ public class ShareFileFragment extends Fragment
 
     private void updateListOfUserGroups() {
         // Update list of users/groups
-        mUserGroupsAdapter = new ShareUserListAdapter(getActivity().getApplicationContext(),
-                R.layout.share_user_item, mShares, this);
+        mUserGroupsAdapter = new ShareUserListAdapter(
+                getActivity(),
+                R.layout.share_user_item,
+                mShares,
+                this
+        );
 
         // Show data
         TextView noShares = (TextView) getView().findViewById(R.id.shareNoUsers);
@@ -229,7 +239,7 @@ public class ShareFileFragment extends Fragment
      * >Communicating with Other Fragments</a> for more information.
      */
     public interface OnShareFragmentInteractionListener {
-        void showSearchUsersAndGroups(ArrayList<OCShare> shares);
+        void showSearchUsersAndGroups();
         void refreshUsersOrGroupsListFromServer();
         void unshareWith(OCShare share);
     }