Adding MultiplePointAnnotation In MapView ios - ios

Question

Im trying to load annotation point into mapview in which i have the seperate array for latitude and a seperate array for longitude here is my code
- (void)viewDidLoad
{
[super viewDidLoad];
delegate=[[UIApplication sharedApplication]delegate];
delegate.arrForLat=[[NSMutablearray alloc]initwithobjects:#"33.930216",#"33.939788",#"33.9272",#"33.902237"];
delegate.arrForLon=[[NSMutablearray alloc]initwithobjects:#"-118.050392",#"-118.076549",#"-118.065817",#"-118.081733‌​"];
for (int i=0 ; i< delegate.arrForLat.count;i++)
{
annotationCoord.latitude = [[delegate.arrForLat objectAtIndex:i] doubleValue];
annotationCoord.longitude = [[delegate.arrForLng objectAtIndex:i] doubleValue];
MKPointAnnotation *annotationPoint = [[MKPointAnnotation alloc] init];
annotationPoint.coordinate = annotationCoord;
[MapView addAnnotation:annotationPoint];
}
}
Now i get only 1 annotation point in mapview but i have 4 coordinates.I don't know what mistake i have done.

Answer 1

Ah, I think I see it. You only have one annotationCoord. On the first trip through the loop you set its lat and long to (33.930216,-118.050392) and create a new object called annotationPoint point its coordinate attribute to your annotationCoord. Then on the next time through the loop you edit annotationCoord by giving it new coordinates. But it's still the same annotationCoord and the annotation you added to the map is still using it, now with the new coordinates.
So the solution is to make a new CLLocationCoordinate2D each time through the loop.