objective c - Add Search to tvOS UITableView -

i have tableview on 400 objects on tvos app, , needs have search functionality on it.

after reading through sample code apple, here have. secondviewcontroller main tableview is, while kept name of resultsviewcontroller same apple had it. in main 1 have:

-(void)viewdidload {     [super viewdidload];     _resultstablecontroller = [[aplresultstablecontroller alloc] init];     _searchcontroller = [[uisearchcontroller alloc] initwithsearchresultscontroller:self.resultstablecontroller];     self.searchcontroller.searchresultsupdater = self;     [self.searchcontroller.searchbar sizetofit];     self.tableview.tableheaderview = self.searchcontroller.searchbar;      // want delegate our filtered table didselectrowatindexpath called both tables     self.resultstablecontroller.tableview.delegate = self;     self.searchcontroller.delegate = self;     self.searchcontroller.searchbar.delegate = self; // can monitor text changes + others      // search presenting view controller. such, normal view controller     // presentation semantics apply. namely presentation walk view controller     // hierarchy until finds root view controller or 1 defines presentation context.     //     self.definespresentationcontext = yes;  // know want uisearchcontroller displayed  } - (void)viewwillappear:(bool)animated {     if (self.searchcontrollerwasactive) {         self.searchcontroller.active = self.searchcontrollerwasactive;         _searchcontrollerwasactive = no;          if (self.searchcontrollersearchfieldwasfirstresponder) {             [self.searchcontroller.searchbar becomefirstresponder];             _searchcontrollersearchfieldwasfirstresponder = no;         }     }     nsbundle *bundle = [nsbundle mainbundle];      self.files  = [bundle pathsforresourcesoftype:@"pdf" indirectory:@"aimpdf"];     nsstring *documentsdirectorypath = [self.files objectatindex:thepath.row];      self.title = @"devo songs";     self.filenames = [[documentsdirectorypath lastpathcomponent] stringbydeletingpathextension];     nslog(@"%@", filenames);      if ([self savedsearchterm])     {         //[[[self searchdisplaycontroller] searchbar] settext:[self savedsearchterm]];     }     nsmutablearray *names = [nsmutablearray arraywithcapacity:[self.files count]];     (nsstring *path in self.files) {         [names addobject:[[path lastpathcomponent] stringbydeletingpathextension]];     }     self.files = names;       self.tableview.backgroundcolor = [uicolor whitecolor];     self.parentviewcontroller.view.backgroundcolor = [uicolor colorwithpatternimage:[uiimage imagenamed:@"iphonebackground.png"]];     [super viewdidload];      uibarbuttonitem *plan = [[uibarbuttonitem alloc] initwithtitle:@"plan devo" style:uibarbuttonitemstyleplain target:self action:@selector(picking)];     self.navigationitem.rightbarbuttonitem = plan;       [super viewwillappear:animated];  } - (void)searchbarsearchbuttonclicked:(uisearchbar *)searchbar {     [searchbar resignfirstresponder]; } - (void)updatesearchresultsforsearchcontroller:(uisearchcontroller *)searchcontroller {     // update filtered array based on search text     nsstring *searchtext = searchcontroller.searchbar.text;     nsmutablearray *searchresults = [self.files mutablecopy];      // strip out leading , trailing spaces     nsstring *strippedstring = [searchtext stringbytrimmingcharactersinset:[nscharacterset whitespacecharacterset]];      // break search terms (separated spaces)     nsarray *searchitems = nil;     if (strippedstring.length > 0) {         searchitems = [strippedstring componentsseparatedbystring:@" "];     }      // build "and" expressions each value in searchstring     //       // hand on filtered results our search results table     aplresultstablecontroller *tablecontroller = (aplresultstablecontroller *)self.searchcontroller.searchresultscontroller;     tablecontroller.filteredproducts = searchresults;     [tablecontroller.tableview reloaddata]; } - (void)handlesearchforterm:(nsstring *)searchterm {     [self setsavedsearchterm:searchterm];      if ([self searchresults] == nil)     {         nsmutablearray *array = [[nsmutablearray alloc] init];         [self setsearchresults:array];         array = nil;     }      [[self searchresults] removeallobjects];      if ([[self savedsearchterm] length] != 0)     {         (nsstring *currentstring in [self files])         {             if ([currentstring rangeofstring:searchterm options:nscaseinsensitivesearch].location != nsnotfound)             {                 [[self searchresults] addobject:currentstring];             }         }     } } 

in results view controller, have:

@implementation aplresultstablecontroller  - (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section {     return self.filteredproducts.count; }  - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath {     nsstring *filename = [[[self.filteredproducts objectatindex:indexpath.row] lastpathcomponent] stringbydeletingpathextension];     nsinteger row = [indexpath row];     nsstring *contentforthisrow = nil;       contentforthisrow = filename;      static nsstring *cellidentifier = @"cellidentifier";      uitableviewcell *cell = [tableview dequeuereusablecellwithidentifier:cellidentifier];     if (cell == nil)     {         cell = [[uitableviewcell alloc] initwithstyle:uitableviewcellstyledefault reuseidentifier:cellidentifier];     }       [[cell textlabel] settext:contentforthisrow];     cell.textlabel.font = [uifont fontwithname:@"helvetica neue" size:90];     cell.textlabel.textcolor = [uicolor blackcolor];     cell.backgroundcolor = [uicolor lightgraycolor];     return cell;  }   @end 

i search bar added @ top of main tableview, nothing changes when start typing in letters.

apple deprecated uisearchdisplaycontroller in ios 8, , removed ios 9, why it's not available on tvos.

you need use uisearchcontroller, initialize , present in code. apple provides example of how in searchviewcontroller.swift, in uikitcatalog tvos sample code.