iphone - Unadded MKMapView renderInContext problems -


i trying image out of mkmapview add "thumbnail" image uitableviewcell. problem image renders solid color , not correct map. have added mkmapview straight view test purposes , loads correctly.

here code cellforrowatindexpath:

//create correct map thumbnail     mkmapview *mapforthumbnail = [[mkmapview alloc] init];     mapforthumbnail.frame = cgrectmake(0, 0, 100, 100);     mapforthumbnail.delegate = self;      cllocationcoordinate2d coords[coordinates.count];     for(int = 0; < coordinates.count; i++){         cllocation *currentlocationcoords = [coordinates objectatindex:i];         coords[i] = cllocationcoordinate2dmake(currentlocationcoords.coordinate.latitude, currentlocationcoords.coordinate.longitude);      }//end      mkpolyline *polylineformapthumbnail = [mkpolyline polylinewithcoordinates:coords count:coordinates.count];     [mapforthumbnail addoverlay:polylineformapthumbnail];     [mapforthumbnail setregion:mkcoordinateregionformaprect([polylineformapthumbnail boundingmaprect])];      uigraphicsbeginimagecontextwithoptions(cgsizemake(100, 100), no, 0.0);     cgcontextref currentcontext = uigraphicsgetcurrentcontext();     [mapforthumbnail.layer renderincontext:currentcontext];     uiimage *mapimage = uigraphicsgetimagefromcurrentimagecontext();     uigraphicsendimagecontext();  cell.imageview.image = mapimage;     cell.detailtextlabel.text = stringfordetaillabel;     cell.detailtextlabel.font = [uifont fontwithname:@"verdana" size:12.0f];     cell.detailtextlabel.textcolor = [uicolor darkgraycolor];

here image of whats happening:

problem


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