单击注释气泡时，应用程序崩溃

Question

I am creating annotations from database. But when I click on annotation to show bubble application crashes. But when I hardcode the coordinates and create placemarks on map the bubbles popup successfully. below is the code I am fetching from database and loading annotations.

-(void) mapView:(MKMapView *)imnMapView didAddAnnotationViews:(NSArray *)views; {

    BOOL *regionSet=FALSE;


                while(sqlite3_step(compiledStatement) == SQLITE_ROW)
                {
                    CLLocationCoordinate2D userCoods1;
                    NSString *lat = [NSString stringWithUTF8String:(char *) sqlite3_column_text(compiledStatement, 3)];
                    NSString *longg = [NSString stringWithUTF8String:(char *) sqlite3_column_text(compiledStatement, 4)];
                    float fLat = [lat floatValue];
                    float fLong = [longg floatValue];


    userCoods1.latitude = (CLLocationDegrees)fLat;

    userCoods1.longitude = (CLLocationDegrees)fLong;

                    if(regionSet == FALSE)
                    {
                        MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance(userCoods1,400000,500000);
                        [mapView setRegion:region animated:YES];
                        regionSet=TRUE;
                    }

                    NSString *siteName = [NSString stringWithUTF8String:(char *) sqlite3_column_text(compiledStatement, 1)];
                    NSString *siteAddress = [NSString stringWithUTF8String:(char *) sqlite3_column_text(compiledStatement, 2)];


                    ParkPlaceMark *placemark=[[ParkPlaceMark alloc] initWithCoordinate1:userCoods1 title:siteName subtitle:siteAddress atm:@"ATM"];
                    pDescription = @"ATM";

                    [mapView addAnnotation:placemark];
                    [placemark release];

                }

            }               

            sqlite3_finalize(compiledStatement);

        }   

}

And When i just change the userCoords hardcoded and create three different placemarks the bubbles popup and works fine. Please help me getting out of this. thanks in advance.

Answer 1

Why don't you save the latitude and longitude values as a decimal or as a float in the database? It is way more easier to convert it.

Can you log the values, using NSLog, that are in lat and longg? Are they converted and stored right in flat and flong?

NSLog(@"String - Latitude: %@ Longitude: %@", lat, longg);
NSLog(@"Float  - Latitude: %f Longitude: %f", fLat, fLong);