ios - How to hide bottom view of tabbar -

i'm using custom tabbar following code:

uiimage *selectedimage0 = [uiimage imagenamed:@"homedb.png"]; uiimage *unselectedimage0 = [uiimage imagenamed:@"homelb.png"];     uiimage *selectedimage1 = [uiimage imagenamed:@"scheduledb.png"]; uiimage *unselectedimage1 = [uiimage imagenamed:@"schedulelb.png"];  uiimage *selectedimage2 = [uiimage imagenamed:@"buildingsdb.png"]; uiimage *unselectedimage2 = [uiimage imagenamed:@"buildingslb.png"];  uiimage *selectedimage3 = [uiimage imagenamed:@"informationdb.png"]; uiimage *unselectedimage3 = [uiimage imagenamed:@"informationlb.png"];  uiimage *selectedimage4 = [uiimage imagenamed:@"moredb.png"]; uiimage *unselectedimage4 = [uiimage imagenamed:@"morelb.png"];  uitabbar *tabbar = self.tabbarcontroller.tabbar;  tabbar.tintcolor = [uicolor redcolor]; uitabbaritem *item0 = [tabbar.items objectatindex:0]; uitabbaritem *item1 = [tabbar.items objectatindex:1]; uitabbaritem *item2 = [tabbar.items objectatindex:2]; uitabbaritem *item3 = [tabbar.items objectatindex:3]; uitabbaritem *item4 = [tabbar.items objectatindex:4];  [item0 setfinishedselectedimage:selectedimage0 withfinishedunselectedimage:unselectedimage0]; [item1 setfinishedselectedimage:selectedimage1 withfinishedunselectedimage:unselectedimage1]; [item2 setfinishedselectedimage:selectedimage2 withfinishedunselectedimage:unselectedimage2]; [item3 setfinishedselectedimage:selectedimage3 withfinishedunselectedimage:unselectedimage3]; [item4 setfinishedselectedimage:selectedimage4 withfinishedunselectedimage:unselectedimage4]; 

my problem when customize tabbar, there still have view (which set color red) @ bottom of tabbar. this:

is there anyway remove without hidding default tabbar , replace custom view? i've check in stackoverflow, in uitabbar reference still find no way.

i think want, replace custom tabbar:

- (void)oppohidetabbarviewcontroller     {         if (self.tabbarviewcontroller.tabbar.hidden == yes)         {             return;         }          uiview *contentview;          if ( [[self.tabbarviewcontroller.view.subviews objectatindex:0] iskindofclass:[uitabbar class]] )         {             contentview = [self.tabbarviewcontroller.view.subviews objectatindex:1];         }         else         {             contentview = [self.tabbarviewcontroller.view.subviews objectatindex:0];         }          contentview.frame = cgrectmake(contentview.bounds.origin.x,                                        contentview.bounds.origin.y,                                        contentview.bounds.size.width,                                        contentview.bounds.size.height + self.tabbarviewcontroller.tabbar.frame.size.height);          self.tabbarviewcontroller.tabbar.hidden = yes;      }      - (void)opposhowtabbarviewcontroller     {         if (self.tabbarviewcontroller.tabbar.hidden == no)         {             return;         }          uiview *contentview;          if ([[self.tabbarviewcontroller.view.subviews objectatindex:0] iskindofclass:[uitabbar class]])         {             contentview = [self.tabbarviewcontroller.view.subviews objectatindex:1];         }         else         {             contentview = [self.tabbarviewcontroller.view.subviews objectatindex:0];         }          contentview.frame = cgrectmake(contentview.bounds.origin.x,                                        contentview.bounds.origin.y,                                        contentview.bounds.size.width,                                        contentview.bounds.size.height - self.tabbarviewcontroller.tabbar.frame.size.height);          self.tabbarviewcontroller.tabbar.hidden = no;     }