How to remove just added, one annotation? - ios

Question

I have a lot of annotations on the mapView and user location dot. Then, if user tap for 2 sec. on the map, I add an extra annotation with options. I need to remove that last added annotation from map by pressing the button. How can I remove it without to remove any other annotation?
- (void)addPin:(UILongPressGestureRecognizer*)recognizer {
if(UIGestureRecognizerStateBegan == recognizer.state) {
CGPoint tappedPoint = [recognizer locationInView:mapView];
CLLocationCoordinate2D locCoord= [mapView convertPoint:tappedPoint toCoordinateFromView:mapView];
MKPointAnnotation *annot = [[MKPointAnnotation alloc] init];
annot.coordinate = locCoord;
[self.mapView addAnnotation:annot];
}
if(UIGestureRecognizerStateChanged == recognizer.state) {
// Do repeated work here (repeats continuously) while finger is down
}
if(UIGestureRecognizerStateEnded == recognizer.state) {
// Do end work here when finger is lifted
}
}

Answer 1

To remove all the annotations from map view:
[vwMap removeAnnotations:vwMap.annotations];
PS: vwMap is the MKMap view object

Answer 2

Do the following,
If you have the annotation object
[self.mapView removeAnnotation:annot];
If you have the index of the object
[self.mapView removeAnnotation:self.mapView.annotations.lastObject];

Answer 3

Do this to remove your last added annotation in your delete Action:
[self.mapView removeAnnotation:[self.mapView.annotations lastObject]];
Hope helpful

Answer 4

I managed to remove the annotation object that is touched by doing the following, I know this wasn't the question but it may help someone out
set the mapView as delegate
- (void)mapView:(MKMapView *)thisMapView didSelectAnnotationView:(MKAnnotationView *)view {
MKPointAnnotation *thisTouchedAnnotation = view.annotation;
uint8_t annotationCount = thisMapView.annotations.count;
for(int i =0; i<annotationCount; i++)
{
if ([thisMapView.annotations objectAtIndex:i]==thisTouchedAnnotation){
[thisMapView removeAnnotation:[mapView.annotations objectAtIndex:i]];
break;
}
}
}
not flawless code but it may guide you :-)

Answer 5

Use this code!
NSArray *array=self.mapview.annotations;
for (MKPointAnnotation *anno in array)
{
if(anno==[array lastObject])
{
[self.mapview removeAnnotation:anno];
}
}