ios - Add a Network Coverage UIView to MKMapView -

i have mkmapview - working well. have notifications viewcontroller responds when network coverage goes down. when happens, want show simple uiview uilabel tells user network down.

i having lots of lots of problems trying achieve this. have built view in in interface builder , initialising in viewdidload:

 self.networkwarningview = [[[nsbundle mainbundle] loadnibnamed:@"networkwarningview"                                                              owner:nil                                                            options:nil] lastobject];   self.networkwarningview.frame = cgrectmake((self.view.bounds.size.width / 2) - 140, (self.view.bounds.size.height / 2) - 45, 280, 70); 

then handling network down notification using method:

-(void)handlenetworkwarning     {          self.hasnetworkfailure = yes;          bool shouldbeadded = yes;         for(uiview *view in [self.view subviews]){             if([view isequal:self.networkwarningview]){                 shouldbeadded = no;             }         }          if(shouldbeadded){              self.networkwarningview.alpha = 0.0;              [self.view addsubview:self.networkwarningview];              [uiview animatewithduration:0.7 animations:^{                self.networkwarningview.alpha = 1.0;             }];         }      } 

i have tried adding warningview view controller view , map view - neither of these approaches work. 'animate in' warning when occurs.

any advise how best overlay view on mkmapview appreciated. thought simple....

thanks

this stupid.

anyone working mapkit - remember notifications should result in ui change should dispatched main thread. dispatching them background worker thread no wonder nothing happening!