Plex:add pull to refresh

Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

Sources/VLCLocalPlexFolderListViewController.m

@@ -35,6 +35,7 @@
     NSMutableArray *_searchData;
     UISearchBar *_searchBar;
     UISearchDisplayController *_searchDisplayController;
+    UIRefreshControl *refreshControl;
 }
 @end
 
@@ -94,6 +95,12 @@
     _searchBar.delegate = self;
     self.tableView.tableHeaderView = _searchBar;
 
+    // Active le Pull down to refresh
+    refreshControl = [[UIRefreshControl alloc] init];
+    // Call the refresh function
+    [refreshControl addTarget:self action:@selector(handleRefresh) forControlEvents:UIControlEventValueChanged];
+    [self.tableView addSubview:refreshControl];
+
     _searchData = [[NSMutableArray alloc] init];
     [_searchData removeAllObjects];
 }
@@ -279,6 +286,13 @@
     [[_mutableObjectList objectAtIndex:[self.tableView indexPathForCell:swipedCell].row] setObject:tag forKey:@"state"];
 }
 
+- (void)reloadTableViewPlex
+{
+    [_mutableObjectList removeAllObjects];
+    _mutableObjectList = [_PlexParser PlexMediaServerParser:_PlexServerAddress port:_PlexServerPort navigationPath:_PlexServerPath];
+    [self.tableView reloadData];
+}
+
 #pragma mark - VLCLocalNetworkListCell delegation
 
 - (void)triggerDownloadForCell:(VLCLocalNetworkListCell *)cell
@@ -327,4 +341,20 @@
     tableView.backgroundColor = [UIColor blackColor];
 }
 
+#pragma mark - Refresh
+
+-(void)handleRefresh
+{
+    //set the title while refreshing
+    refreshControl.attributedTitle = [[NSAttributedString alloc] initWithString:@"Refresh"];
+    //set the date and time of refreshing
+    NSDateFormatter *formattedDate = [[NSDateFormatter alloc] init];
+    [formattedDate setDateFormat:@"MMM d, h:mm a"];
+    NSString *lastupdated = [NSString stringWithFormat:@"Last Updated on %@", [formattedDate stringFromDate:[NSDate date]]];
+    refreshControl.attributedTitle = [[NSAttributedString alloc] initWithString:lastupdated];
+    //end the refreshing
+    [refreshControl endRefreshing];
+    [self performSelector:@selector(reloadTableViewPlex) withObject:nil];
+}
+
 @end