ios - 使用自定义地址在 MapView 中放置图钉

Question

我在我的应用程序中创建了一个 map View 。现在我希望用户能够添加多个地址以在这些位置放置图钉。我还希望用户能够移除这些引脚。

有谁知道我在哪里可以找到好的教程，或者从哪里开始？我没有使用 map View 的经验...

Answer 1

试试这个……

-

(void)ShowPins
{
    activity.hidden=YES;
    [activity stopAnimating];
    double lat;
    double lng;
    for (int ijk=0; ijk<arrayLocationList.count; ijk++)
    {
        /*Set your lat and long here*/
        lat=[[[[arrayLocationList objectAtIndex:ijk]objectForKey:@"location"] objectForKey:@"lat"] doubleValue];         
        lng=[[[[arrayLocationList objectAtIndex:ijk]objectForKey:@"location"] objectForKey:@"lng"] doubleValue];

        CLLocationCoordinate2D geos = CLLocationCoordinate2DMake(lat, lng);
        MKPlacemark* marker = [[MKPlacemark alloc] initWithCoordinate:geos addressDictionary:nil];
        [mapVieww addAnnotation:marker];

    }

    CLLocationCoordinate2D coord1 = {.latitude = lat, .longitude =lng};
    MKCoordinateSpan span = {.latitudeDelta = .03,.longitudeDelta = .03};

    MKCoordinateRegion region = {coord1, span};
    [mapVieww setRegion:region];
}




- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation;
{
    MKPinAnnotationView *newAnnotation = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"annotation1"];
    UILabel *lable=[[UILabel alloc]init];
    [newAnnotation addSubview:lable];
    newAnnotation.pinColor = MKPinAnnotationColorRed;
    newAnnotation.animatesDrop = YES;
    newAnnotation.canShowCallout = NO;
    [newAnnotation setSelected:YES animated:YES];
    return newAnnotation;
}