OC-2822: Add 'loading' progress dialog while the share link is being created

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

@@ -1338,7 +1338,7 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
 
 
     private void onCreateShareOperationFinish(CreateShareOperation operation, RemoteOperationResult result) {
-        
+        dismissLoadingDialog();
         if (result.isSuccess()) {
             refeshListOfFilesFragment();
 

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

@@ -337,6 +337,7 @@ public class FileDetailFragment extends FileFragment implements
         switch (item.getItemId()) {
             case R.id.action_share_file: {
                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
+                activity.showLoadingDialog();
                 activity.getFileOperationsHelper().shareFileWithLink(getFile(), activity);
                 return true;
             }

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

@@ -285,6 +285,7 @@ public class OCFileListFragment extends ExtendedListFragment implements EditName
         switch (item.getItemId()) {
             case R.id.action_share_file: {
                 FileDisplayActivity activity = (FileDisplayActivity) getSherlockActivity();
+                activity.showLoadingDialog();
                 activity.getFileOperationsHelper().shareFileWithLink(mTargetFile, activity);
                 return true;
             }