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POAnimations for a dropped pin not working
 

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  1. POAnimations for a dropped pin not working
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    <p>When I drop a pin on my mkmapview the animation works fine and the pin drops from the top of the screen as expected. I color that pin red because I haven't verified it. However, if I verify the pin using some code that is called on calloutAccessoryControlTapped I change the color of the Pin to green.</p> <p>When I next press on the map to drop another red pin the animation fails and the pin just appears. If I do it again (long press) a new pin appears and it's animation is fine. What could I have done to the annotation that causes this behavior.</p> <p>Thanks for any insights of what could have gone wrong here... Donie</p> <pre><code>- (MKAnnotationView *)mapView:(MKMapView *)map viewForAnnotation:(id &lt;MKAnnotation&gt;)annotation { if ([annotation isKindOfClass:[MKUserLocation class]]) { return nil; } static NSString * const kPinIdentifier = @"PinIdentifier"; MKPinAnnotationView *draggablePinView = (MKPinAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:kPinIdentifier]; if(!draggablePinView) { draggablePinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:kPinIdentifier] autorelease]; draggablePinView.pinColor = MKPinAnnotationColorRed; draggablePinView.animatesDrop = YES; draggablePinView.canShowCallout = YES; draggablePinView.draggable = YES; UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure]; draggablePinView.rightCalloutAccessoryView = rightButton; } else { draggablePinView.annotation = annotation; draggablePinView.animatesDrop = YES; } return draggablePinView; } -(void)longPressGesture:(UIGestureRecognizer *)gestureRecognizer { if (gestureRecognizer.state == UIGestureRecognizerStateBegan) { CGPoint touchPoint = [gestureRecognizer locationInView:mapView]; CLLocationCoordinate2D touchMapCoordinate = [mapView convertPoint:touchPoint toCoordinateFromView:mapView]; [self dropPinWithCoords:touchMapCoordinate]; } } - (void)mapView:(MKMapView *)mapview annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control { [self getFromServer]; } -(void) showLoc8CodeDetail:(LOC8Code *) loc8 { // Open the view controller viewLoc8ViewController *loc8view = [[viewLoc8ViewController alloc] initWithLoc8code:loc8]; [gMainViewController.navigationController pushViewController:loc8view animated:YES]; [loc8view release]; } -(void) dropPinWithCoords:(CLLocationCoordinate2D)loc { // Set the loc8code from index 0 in the global array and populate from response LOC8Code *newPin = [gMapAnnotations objectAtIndex:0]; newPin.starRating = 1; newPin.title = @"Unverified Pin"; newPin.subtitle = @"Click to verify postcode"; newPin.verified = NO; // this means you do have to requery if opened newPin.coordinate = loc; [self removeMapAnnotations]; [gMapAnnotations replaceObjectAtIndex:1 withObject:newPin]; [self.mapView addAnnotation:[gMapAnnotations objectAtIndex:1]]; // Reset flags [dropPinButton setTitle:@"Replace Pin" forState:UIControlStateNormal]; [self moveAndHidePinButtons:NO]; } -(void)getFromServer { [self checkRegisteredFromServer]; // Does API call to see if device already registered // Get the loc8 code from the global array (pin always index 1) LOC8Code *loc8 = [gMapAnnotations objectAtIndex:1]; // If we have a verified pin already (from a search) just show the info if(loc8.verified == YES) { [self showLoc8CodeDetail:loc8]; } else { [self setSpinning:YES]; // Get coordinates NSString *urlWithCoords = [NSString stringWithFormat:@"https://www.server.com/api/rest/lite/loc?t=%@&amp;u=%@&amp;a=iloc8er&amp;la=%f&amp;lo=%f", [Util getAPIToken], [UIDevice currentDevice].uniqueIdentifier, loc8.coordinate.latitude, loc8.coordinate.longitude]; NSLog(@"%@", urlWithCoords); ASIHTTPRequest *request = [self populateRequest:request withURL: urlWithCoords]; [request setDidFinishSelector:@selector(loc8returned:)]; [[self networkQueue] addOperation:request]; } } -(void)loc8returned:(ASIHTTPRequest *)request { @try { NSString *response = [request responseString]; NSLog(@"RSP: %@", response); // Store incoming data into an NSDictionary SBJsonParser *parser = [[SBJsonParser new]autorelease]; NSDictionary *results = [parser objectWithString:response error:nil]; // Check for errors NSNumber *r = [results objectForKey:@"r"]; NSString *e = [results valueForKey:@"e"]; if(r.boolValue == NO) { if([e isEqualToString:@"lc51"] || [e isEqualToString:@"lc52"]) { // Outside range [self setSpinning:NO]; return; } if([e isEqualToString:@"ud04"]) { // quota check [self setSpinning:NO]; return; } } else { LOC8Code *loc8 = [gMapAnnotations objectAtIndex:1]; // Set the loc8code NSString *lc = [results valueForKey:@"lc"]; loc8.postcode = lc; loc8.verified = YES; loc8.starRating = 0; loc8.title = lc; // This pin is now validated MKPinAnnotationView *pinView = (MKPinAnnotationView*)[mapView viewForAnnotation:[gMapAnnotations objectAtIndex:1]]; pinView.pinColor = MKPinAnnotationColorGreen; // Open the view controller [self showLoc8CodeDetail:loc8]; } } @catch (NSException *exception) { [Util say:@"Service Temporarily Unavailable (-200):"]; NSLog(@"RSP: %@, %@", [exception name], [exception reason]); } [self setSpinning:NO]; } </code></pre> <p>The loc8code header class is defined as follows:</p> <pre><code>@interface LOC8Code : MKPlacemark { NSString *postcode; NSString *BusinessName; int starRating; CLLocationCoordinate2D coordinate_; NSString *title_; NSString *subtitle_; BOOL verified; // Verified locations can't be moved (if pin moved then flag as not verified) } // Re-declare MKAnnotation's readonly property 'coordinate' to readwrite. @property (nonatomic, retain) NSString *postcode; @property (nonatomic, retain) NSString *BusinessName; @property (nonatomic, assign) int starRating; @property (nonatomic, readwrite, assign) CLLocationCoordinate2D coordinate; @property (nonatomic, retain) NSString *title; @property (nonatomic, retain) NSString *subtitle; @property (nonatomic, assign) BOOL verified; @end </code></pre> <p>And the implementation</p> <pre><code>#import "LOC8Code.h" @implementation LOC8Code @synthesize coordinate = coordinate_; @synthesize title = title_; @synthesize subtitle = subtitle_; @synthesize verified; @synthesize starRating; @synthesize postcode; @synthesize BusinessName; - (id)initWithCoordinate:(CLLocationCoordinate2D)coordinate addressDictionary:(NSDictionary *)addressDictionary { if ((self = [super initWithCoordinate:coordinate addressDictionary:addressDictionary])) { self.coordinate = coordinate; } return self; } - (void)dealloc { [title_ release]; [subtitle_ release]; [postcode release]; [BusinessName release]; [super dealloc]; } @end </code></pre>
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