Question

当勾选附件按钮时，我需要传递itemId，这样我就可以识别要传递给我的详细视图的项目。

到目前为止：

添加注释：

for (id row in self.detailItem) {
    Item *i = (Item *) row; 
    CLLocationCoordinate2D destination;
    destination.latitude = (double) i.latitude;
    destination.longitude = (double) i.longitude;

    //i.itemid

    MapViewAnnotation *destinationAnnotation = [[MapViewAnnotation alloc] initWithTitle: i.name andCoordinate: destination];
    [self.mapView addAnnotation: destinationAnnotation];     
    [destinationAnnotation release];
}

添加附件按钮

- (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id <MKAnnotation>)annotation
{
MKPinAnnotationView *pinAnnotation = nil;
if(annotation != mapView.userLocation) 
{
    static NSString *defaultPinID = @"myPin";
    pinAnnotation = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];
    if ( pinAnnotation == nil )
        pinAnnotation = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID] autorelease];

    pinAnnotation.canShowCallout = YES;

    UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    pinAnnotation.rightCalloutAccessoryView = infoButton;

}

return pinAnnotation;
}

找到要传递给详细视图的项目

-(void)mapView:(MKMapView *)mapView annotationView:(MKPinAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control {
// get annotation details here.

NSLog(@"%@", control);
}

Answer 1

将itemid属性添加到MapViewAnnotation类。

添加注释时，请在调用addAnnotation之前设置属性：

destinationAnnotation.itemid = i.itemid;
[self.mapView addAnnotation: ...

在calloutAccessoryControlTapped中，访问注释详细信息，如下所示：

MapViewAnnotation *annotationTapped = (MapViewAnnotation *)view.annotation;
NSLog(@"annotationTapped.itemid = %@", annotationTapped.itemid);

（如果itemid为int，请将NSLog中的%@更改为%d。

将id传递给calloutAccessoryControlTapped

1 个答案: