Some UI fixes in details screen.

core/res/layout/list_item_simple.xml

@@ -12,6 +12,7 @@
 		android:layout_width="match_parent"
 		android:layout_height="wrap_content"
 		android:textSize="15sp"
-		android:textIsSelectable="false" />
+		android:textIsSelectable="false"
+		android:autoLink="web" />
 
 </FrameLayout>

core/src/org/transdroid/core/gui/DetailsActivity.java

@@ -113,6 +113,8 @@ public class DetailsActivity extends SherlockFragmentActivity implements Torrent
 	protected void refreshScreen() {
 		fragmentDetails.updateIsLoading(true);
 		refreshTorrent();
+		refreshTorrentDetails(torrent);
+		refreshTorrentFiles(torrent);
 	}
 
 	@Background

core/src/org/transdroid/core/gui/DetailsFragment.java

@@ -141,10 +141,9 @@ public class DetailsFragment extends SherlockFragment {
 		detailsList.setVisibility(View.GONE);
 		emptyText.setVisibility(!isLoadingTorrent? View.VISIBLE: View.GONE);
 		loadingProgress.setVisibility(isLoadingTorrent? View.VISIBLE: View.GONE);
-		torrent = null;
+		// Note: this.torrent is not cleared as we need to know later what the fragment was originally bound to
 		torrentDetails = null;
 		torrentFiles = null;
-		getActivity().supportInvalidateOptionsMenu();
 	}
 
 	/**

core/src/org/transdroid/core/gui/lists/DetailsAdapter.java

@@ -90,7 +90,7 @@ public class DetailsAdapter extends MergeAdapter {
 	 * @param trackers The new list of trackers known for this torrent, or null if the list and header should be hidden
 	 */
 	public void updateTrackers(List<? extends SimpleListItem> trackers) {
-		if (trackers == null) {
+		if (trackers == null || trackers.isEmpty()) {
 			trackersAdapter.update(new ArrayList<SimpleListItemAdapter.SimpleStringItem>());
 			trackersSeparatorView.setVisibility(View.GONE);
 		} else {
@@ -104,7 +104,7 @@ public class DetailsAdapter extends MergeAdapter {
 	 * @param errors The new list of errors known for this torrent, or null if the list and header should be hidden
 	 */
 	public void updateErrors(List<? extends SimpleListItem> errors) {
-		if (errors == null) {
+		if (errors == null || errors.isEmpty()) {
 			errorsAdapter.update(new ArrayList<SimpleListItemAdapter.SimpleStringItem>());
 			errorsSeparatorView.setVisibility(View.GONE);
 		} else {