ios - UITableView with fixed section headers -

greets, i'm reading default behaviour of uitableview pin section header rows top of table scroll through sections until next section pushes previos section row out of view.

i have uitableview inside uiviewcontroller , not seem case.

is defualt behaviour uitableviewcontroller?

here's simplified code based on have. i'll show uicontroller interface , each table view method i've implemented create table view. have helper data source class helps me index objects use table.

    @interface myuiviewcontroller ()<uitableviewdelegate, uitableviewdatasource>         @property (nonatomic, readonly) uitableview *mytableview;         @property (nonatomic, readonly) mycustomhelperdatasource *helperdatasource;     @end      //when section data set, details each section , reload table on success     - (void)setsectiondata:(nsarray *)sections {         super.sectiondata = sections; //this array drives sections          //get additional data section details         [[restkitservice sharedclient] getsectiondetailsforsection:someid          success:^(rkobjectrequestoperation *operation, rkmappingresult *details) {             nslog(@"got section details data");             _helperdatasource = [[mycustomhelperdatasource alloc] initwithsections:sections anddetails:details.array];             [mytableview reloaddata];         } failure:^(rkobjectrequestoperation *operation, nserror *error) {             nslog(@"failed getting section details");         }];     }      #pragma mark <uitableviewdatasource, uitableviewdelegate>      - (nsinteger)numberofsectionsintableview:(uitableview *)tableview {         if (!_helperdatasource) return 0;         return [_helperdatasource countsectionswithdetails]; //number of section have details rows, ignore empty sections     }      - (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section {         //get section object current section int         sectionobject *section = [_helperdatasource sectionobjectforsection:section];         //return number of details rows section object @ section         return [_helperdatasource countofsectiondetails:section.sectionid];     }      - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath {          uitableviewcell * cell;          nsstring *cellidentifier = @"sectiondetailcell";          cell = [tableview dequeuereusablecellwithidentifier:cellidentifier];         if (cell == nil) {             initwithstyle:uitableviewcellstylevalue1 reuseidentifier:cellidentifier];             cell = [[uitableviewcell alloc] initwithstyle:uitableviewcellstylesubtitle reuseidentifier:cellidentifier];             cell.textlabel.font = [uifont systemfontofsize:12.0f];         }          //get detail object section         sectionobject *section = [_helperdatasource sectionobjectforsection:indexpath.section];           nsarray* detailsforsection = [_helperdatasource detailsforsection:section.sectionid] ;         sectiondetail *sd = (sectiondetail*)[detailsforsection objectatindex:indexpath.row];          cell.textlabel.text = sd.displaytext;         cell.detailtextlabel.text = sd.subtext;         cell.detailtextlabel.textcolor = [uicolor bluetextcolor];          return cell;     }  - (cgfloat)tableview:(uitableview *)tableview heightforrowatindexpath:(nsindexpath *)indexpath {     return 50.0f; }  - (cgfloat)tableview:(uitableview *)tableview heightforheaderinsection:(nsinteger)section {     return 30.0f; }  - (nsstring *)tableview:(uitableview *)tableview titleforheaderinsection:(nsinteger) section {     //get section object current section     sectionobject *section = [_helperdatasource sectionobjectforsection:section];       nsstring *title = @"%@ (%d)";      return [nsstring stringwithformat:title, section.name, [_helperdatasource countofsectiondetails:section.sectionid]]; }  - (uiview *)tableview:(uitableview *)tableview viewforheaderinsection:(nsinteger)section {     uiview *header = [[uiview alloc] initwithframe:cgrectmake(0, 0, 260, 0)];     header.autoresizingmask = uiviewautoresizingflexiblewidth;      header.backgroundcolor = [uicolor darkbackgroundcolor];      sslabel *label = [[sslabel alloc] initwithframe:cgrectmake(3, 3, 260, 24)];     label.font = [uifont boldsystemfontofsize:10.0f];     label.verticaltextalignment = sslabelverticaltextalignmentmiddle;     label.backgroundcolor = [uicolor clearcolor];     label.text = [self tableview:tableview titleforheaderinsection:section];     label.textcolor = [uicolor whitecolor];     label.shadowcolor = [uicolor darkgraycolor];     label.shadowoffset = cgsizemake(1.0, 1.0);     [header addsubview:label];      return header; } 

the headers remain fixed when uitableviewstyle property of table set uitableviewstyleplain. if have set uitableviewstylegrouped, headers scroll cells.