ios - 如何将 MyLocation 对象从 Mapview 传递到 tableview？

Question

我有一个从 coredata 获取并获取 Location 对象数组的 map View 。 Location 对象是自定义的 NSManagedObjects，如下所示:

@property (nonatomic, retain) NSString * ciudad;
@property (nonatomic, retain) NSString * horario;
@property (nonatomic, retain) NSString * codigo;
@property (nonatomic, retain) NSString * nombrePublico;
@property (nonatomic, retain) NSString * telefono;
@property (nonatomic, retain) NSString * direccion;
@property (nonatomic, retain) NSString * coordenadas;
@property (nonatomic, retain) NSString * hrs24;
@property (nonatomic, retain) NSString * driveThru;
@property (nonatomic, retain) NSDate * updatedAt;

然后，我循环遍历数组中的所有位置对象并创建注释，如下所示:

MyLocation *annotation = [[MyLocation alloc] initWithName:storeDescription address:address coordinate:coordinate distance:0];

我将这些注释添加到数组中，然后通过触摸按钮绘制它们:

- (IBAction)refreshTapped:(id)sender {
    for (id<MKAnnotation> annotation in _mapView.annotations) {
        [_mapView removeAnnotation:annotation];
    }
    for (MyLocation *annotation in self.myLocationsToSort) {
        [_mapView addAnnotation:annotation];   
    }   
}

最后，当用户点击标注上的公开按钮时，我想将对象传递给 UIViewController。所以首先我创建我的注释:

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation

那么我会这样做:

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

    if (![view.annotation isKindOfClass:[MyLocation class]])
        return;

    [self performSegueWithIdentifier:@"DetailVC" sender:view];

}

segue 调用详细 TableView 。我的问题是，我应该如何处理将对象传递给详细 TableView ？

Answer 1

在performSegueWithIdentifier之前在 map View 中将annotation保存到成员变量然后覆盖

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([[segue identifier] isEqualToString:@"DetailVC"]) {
        [[segue destinationViewController] setAnnotation:self.annotation];
    }
}