I have one calendar on map. Initially when I open view controller, all annotations of current date are shown. and I am getting these annotations' coordinates from web services. So, when I change date from calendar, I have to call web services and I get new coordinates of selected date. My problem is, I am adding annotations of current date. my code is
timer = [NSTimer scheduledTimerWithTimeInterval:1.0f target:self selector:@selector(addannotationwithtimerInitial:) userInfo:nil repeats:YES];
-(void) addannotationwithtimerInitial:(id)sender{
img = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 70, 60)];
if ([dateText stringForKey:@"dateTxt"] !=nil) {
lbl1 = [[UILabel alloc] initWithFrame:CGRectMake(4, 4, 60, 40)];
} else {
lbl = [[UILabel alloc] initWithFrame:CGRectMake(4, 4, 60, 40)];
}
if (annoCount< _lat.count-1) {
NSLog(@"anncount %d",annoCount);
double lat = [[_lat objectAtIndex:(annoCount)] doubleValue];
double longt = [[_longitude objectAtIndex:(annoCount)] doubleValue];
//CLLocationCoordinate2D loc;
loc.latitude = lat;
loc.longitude = longt;
NSLog(@"lac lat long %f %f",loc.latitude, loc.longitude);
Annotation.title = [_divDate objectAtIndex:annoCount];
NSLog(@" divv%@",[_divDate objectAtIndex:(annoCount)]);
Annotation = [[MKPointAnnotation alloc] init];
Annotation.coordinate = loc;
[_mapView addAnnotation:Annotation];
}
if (annoCount == 0) {
img.image = [UIImage imageNamed:@"ann1.png"];
float spanX = 0.5;
float spanY = 0.5;
MKCoordinateRegion region;
region.center.latitude = loc.latitude;
region.center.longitude = loc.longitude;
region.span.latitudeDelta = spanX;
region.span.longitudeDelta = spanY;
[self.mapView setRegion:region animated:YES];
}
else if (annoCount == _lat.count-1){
img.image = [UIImage imageNamed:@"ann1.png"];
[timer invalidate];
}
else{
img.image = [UIImage imageNamed:@"ann2.png"];
}
annoCount++;
}
This is adding perfectly. but when I change date, I am removing annotations and then again I am calling web services and showing annotations. but this time annotations are adding properly but values of annotations are not showing properly. It is showing previous values. my code is
[timer invalidate];
[_mapView removeAnnotation:Annotation];
for (id annotation in _mapView.annotations)
if (annotation != _mapView.userLocation)
[toRemove addObject:annotation];
[_mapView removeAnnotations:toRemove];
[self webservice];
timer = [NSTimer scheduledTimerWithTimeInterval:1.0f target:self selector:@selector(addannotationwithtimerInitial:) userInfo:nil repeats:YES];
and to show annotations on map method is
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
// If it's the user location, just return nil.
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
static NSString *reuseId = @"reuseid";
av = [mapView dequeueReusableAnnotationViewWithIdentifier:reuseId];
if (av == nil)
{
av = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:reuseId];
//img = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 70, 60)];
[av addSubview:img ];
// UILabel *lbl1 = [[UILabel alloc] initWithFrame:CGRectMake(4, 4, 60, 40)];
// lbl1.text = [_divDate objectAtIndex:(annoCount)];
// NSLog(@"lbl txt %@",lbl1.text);
if ([dateText stringForKey:@"dateTxt"] !=nil) {
lbl1.backgroundColor = [UIColor clearColor];
lbl1.textColor = [UIColor whiteColor];
[lbl1 setFont: [lbl1.font fontWithSize: 12]];
[lbl1 setFont:[UIFont boldSystemFontOfSize:12]];
lbl1.text = [_divDate objectAtIndex:(annoCount)];
NSLog(@"lb tx %@",lbl1.text);
lbl1.alpha = 1;
[img addSubview:lbl1];
} else {
lbl.backgroundColor = [UIColor clearColor];
lbl.textColor = [UIColor whiteColor];
[lbl setFont: [lbl.font fontWithSize: 12]];
[lbl setFont:[UIFont boldSystemFontOfSize:12]];
lbl.text = [_divDate objectAtIndex:(annoCount)];
lbl.alpha = 1;
[img addSubview:lbl];
}
//Following lets the callout still work if you tap on the label...
av.canShowCallout = YES;
av.frame = lbl.frame;
}
else
{
av.annotation = annotation;
}
lbl = (UILabel *)[av viewWithTag:42];
//NSLog(@"ann %@",myAnnotation.title);
return av;
}
Please help me.
