ios - UITableView datasource methods get called only once -

my cellforrowatindexpath doesn't updated after return detail view controller.

homeviewcontroller

- (void)viewdidload { [super viewdidload]; // additional setup after loading view nib. self.title  =@"welcome";  [eventstable registernib:[uinib nibwithnibname:@"eventcell" bundle:nil] forcellreuseidentifier:@"eventcell"];  //filtering process current date [self fetchusersfortype:1]; [eventstable reloaddata];  // configure bar button items.. uibarbuttonitem *filterbutton = [[uibarbuttonitem alloc]initwithtitle:@"filter" style:uibarbuttonitemstyleplain target:self action:@selector(filtertapped:)]; uibarbuttonitem *addbutton = [[uibarbuttonitem alloc]initwithbarbuttonsystemitem:uibarbuttonsystemitemadd target:self action:@selector(addtapped:)]; self.navigationitem.leftbarbuttonitem = filterbutton; self.navigationitem.rightbarbuttonitem = addbutton;  refreshcontrol= [[uirefreshcontrol alloc]init]; [eventstable addsubview:refreshcontrol];  //testing      [refreshcontrol addtarget:self action:@selector(reloadtable) forcontrolevents:uicontroleventvaluechanged];  //performing async operation here      [bottomview setframe:cgrectmake(0, self.view.frame.size.height-69, 320, 69)];  } 

tableview datasource methods

- (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section  {  return  [self.eventsarray count];//1;//[sectioninfo numberofobjects];  }   // customize appearance of table view cells.  - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath   *)indexpath  {   static nsstring *cellidentifier = @"eventcell";  //testing   eventcell *cell = [tableview dequeuereusablecellwithidentifier:cellidentifier]; personevent *currentevent = [self.eventsarray objectatindex:indexpath.row]; [cell configureforevent:currentevent];    return cell;   } 

viewdidappear

  -(void)viewdidappear:(bool)animated  { [super viewdidappear:animated];    [[nsnotificationcenter defaultcenter]removeobserver:self];   [self reloadtable];  }  - (void)reloadtable { nslog(@"reloading table view new contacts ."); [self fetchusersfortype:currentfilterindex]; [eventstable reloaddata]; [refreshcontrol endrefreshing];   nslog(@"observer finished."); } 

since have used refresh control updates after refresh twice, problem?

i put breakpoints too,but cellforrowatindexpath gets called first time, when select particular row , enter detail view controller , come cellforrowatindexpath doesn't called.