ios - 无法将 CLLocationCoordinate2D 分配给另一个 CLLocationCoordinate2D

Question

我收到以下错误:

Assigning to 'CLLocationCoordinate2D *' from incompatible type 'CLLocationCoordinate2D'; take the address with &

在下面一行:

 locationMapViewController.centerOfMap = coordinate;



- (IBAction) btnLocateAddress
{

    if (!self.geocoder) {
        self.geocoder = [[CLGeocoder alloc] init];
    }


    [self.geocoder geocodeAddressString:self.address.text completionHandler:^(NSArray *placemarks, NSError *error) {
        if ([placemarks count] > 0) {
            CLPlacemark *placemark = [placemarks objectAtIndex:0];
            CLLocation *location = placemark.location;
            CLLocationCoordinate2D coordinate = location.coordinate;

            self.address.text = [NSString stringWithFormat:@"%f, %f", coordinate.latitude, coordinate.longitude];

            if ([placemark.areasOfInterest count] > 0) {
                NSString *areaOfInterest = [placemark.areasOfInterest objectAtIndex:0];
                 NSLog(@"Area of Interest: %@",areaOfInterest);
            }



        //lets push the new map screen
            LocationMapViewController *locationMapViewController = [[LocationMapViewController alloc] initWithNibName:@"LocationMapViewController_iPhone" bundle:nil];
            locationMapViewController.title=@"Your Property Listing";
            locationMapViewController.centerOfMap = coordinate;
            [self.navigationController pushViewController:locationMapViewController animated:YES]; 


        }
    }];


}

我做错了什么？

Answer 1

错误告诉你一切。您正在将 CLLocationCoordinate2D 值(请参阅 NO POINTER)分配给指针 ( CLLocationCoordinate2D * ) 您可以使用 & 获取变量的地址。也称为 pointer 。因此，您可以执行 locationMapViewController.centerOfMap = &coordinate; 或直接设置 latitude 和 longitude 值。

干杯，

乔治