I have a method that inserts annotations in the map. This method is called by a delegate method of map.
The problem is that the annotations don't appear in map. I have to touch the map one more time to show the annotations.
After inserting the annotations, I'm using [CATRansaction flush], but it don't work.
Above the code:
Map delegated method:
- (void) mapView:(MKMapView *)mapView regionDidChangeAnimated:(BOOL)animated{
log(@"region changed");
if (_userRegion.center.latitude) {
log(@"Move map. New location: %f X %f", self.mapView.centerCoordinate.latitude, self.mapView.centerCoordinate.longitude);
NSDictionary *coordinates = @{
@"latitude": [NSString stringWithFormat:@"%f", self.mapView.centerCoordinate.latitude],
@"longitude": [NSString stringWithFormat:@"%f", self.mapView.centerCoordinate.longitude]
};
NSThread *thread = [[NSThread alloc] initWithTarget:self selector:@selector(updateMap:) object:coordinates];
[thread start];
}
if(_userMenuOpened){
[self closeUserMenu];
}
if(_settingsMenuOpened){
[self closeSettingsMenu];
}
}
Method that inserts the annotation:
- (void) updateMap:(NSDictionary *) coordinates {
NSArray *annotationsInMap = [self.mapView annotations];
_busStops = [_ws getStations:10 lat:[[coordinates valueForKey:@"latitude"] doubleValue] lng:[[coordinates valueForKey:@"longitude"] doubleValue]];
for(NSString *stop in _busStops) {
BOOL inMap = NO;
BPBusStopAnnotation *annotation = [[BPBusStopAnnotation alloc] initWithData:stop];
//Se tiver annotation no mapa verifica se os que vem no WS sao os mesmos
if(annotationsInMap.count > 0){
for(BPBusStopAnnotation *pt in annotationsInMap){
if(pt && ![pt isKindOfClass:[MKUserLocation class]]){
if([annotation.codigo isEqual:pt.codigo]){
inMap = YES;
break;
}
}
}
}
if (!inMap) {
[self.mapView addAnnotation:annotation];
}
}
[CATransaction flush];
}
Thank's!!!
