MKMapView->显示我的位置按钮

Question

我有一个用这些源代码行实现的 MKMapView （我的位置是蓝色子弹，另一个是紫色图钉）：

- (MKAnnotationView *)mapView:(MKMapView *)mapViewLocal viewForAnnotation:(id <MKAnnotation>)annotation {
    if (annotation == mapViewLocal.userLocation) {
        mapViewLocal.userLocation.title = @"Test";
        [mapViewLocal setRegion:MKCoordinateRegionMakeWithDistance(mapViewLocal.userLocation.coordinate, 1000, 1000) animated:YES];
        return nil;
    }

    MKPinAnnotationView *pinView = (MKPinAnnotationView*)[mapViewLocal dequeueReusableAnnotationViewWithIdentifier:@"Pin"];
        if(pinView == nil) {
            pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"Pin"] autorelease];
            pinView.pinColor = MKPinAnnotationColorPurple;
            pinView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
            pinView.animatesDrop = NO;
            pinView.canShowCallout = YES;
        } else {
            pinView.annotation = annotation;
        }
        return pinView;
    }

紫色图钉有一个详细信息披露按钮，但我的注释没有。如何设置这样的按钮？

这就是我可以在按下按钮时执行某些操作的方法：

-(void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control

我如何区分我的位置和所有其他位置，因为我需要不同的处理。是否有另一个代表或者我必须制定某种 if 子句？

Answer 1

在你的 didUpdateToLocation 中写一些类似

AddressAnnotation   *myAnnotation = [[AddressAnnotation alloc] initWithCoordinate:currentLocation];
                myAnnotation.title = @"You are here";
                [self.mapView addAnnotation:myAnnotation];

东西

的

- (MKAnnotationView *)mapView:(MKMapView *)map viewForAnnotation:(id <MKAnnotation>)annotation
{
           // try to dequeue an existing pin view first
        static NSString* annotationIdentifier = @"annotationIdentifier";

        NSString *titlestr = annotation.title;

        MKPinAnnotationView* pinView = (MKPinAnnotationView *)
        [mapView dequeueReusableAnnotationViewWithIdentifier:annotationIdentifier];
    MKPinAnnotationView* customPinView = [[[MKPinAnnotationView alloc]
                                           initWithAnnotation:annotation reuseIdentifier:nil] autorelease];
        if (!pinView)
        {
            // if an existing pin view was not available, create one
           // MKPinAnnotationView* customPinView = [[[MKPinAnnotationView alloc]
                                                   //initWithAnnotation:annotation reuseIdentifier:annotationIdentifier] autorelease];
            if([titlestr isEqualToString:@"You are here"])
            {
                customPinView.pinColor = MKPinAnnotationColorGreen;
                NSLog(@"customPinView.pinColor = MKPinAnnotationColorGreen;");
            }
            else{
                customPinView.pinColor = MKPinAnnotationColorPurple;
                customPinView.selected = TRUE;
                NSLog(@"customPinView.pinColor = MKPinAnnotationColorPurple;");
                UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
                [rightButton addTarget:self
                                action:@selector(ShowStoreDetail:)
                      forControlEvents:UIControlEventTouchUpInside];
                customPinView.rightCalloutAccessoryView = rightButton;
            }
            customPinView.animatesDrop = YES;
            customPinView.canShowCallout = YES;

            return customPinView;
        }
        else
        {
            pinView.annotation = annotation;



            if([titlestr isEqualToString:@"You are here"])
            {
                customPinView.pinColor = MKPinAnnotationColorPurple;
                NSLog(@"customPinView.pinColor = MKPinAnnotationColorGreen;");
            }
            else{
                customPinView.pinColor = MKPinAnnotationColorPurple;
                customPinView.selected = TRUE;
                NSLog(@"customPinView.pinColor = MKPinAnnotationColorPurple;");
                UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
                [rightButton addTarget:self
                                action:@selector(ShowStoreDetail:)
                      forControlEvents:UIControlEventTouchUpInside];
                customPinView.rightCalloutAccessoryView = rightButton;
            }


        }
        return pinView;

    return nil;
}