將數據從註釋傳遞到詳細視圖iOS使用故事板

Question

我試圖通過Google Places API將當前已加載到註釋中的數據傳遞到我通過使用segue的故事板創建的詳細視圖控制器中。

我已經正確加載詳細視圖控制器，點擊每個註釋的詳細信息，但我試圖讓數據現在通過。

- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control 
{ 
// Assuming I call the MapPoint class here and set it to the current annotation 
// then I'm able to call each property from the MapPoint class but wouldn't 
// I have to set this in the prepareForSegue but that would be out of scope? 

    MapPoint *annView = view.annotation; 

    // annView.name 
    // annView.address 

    [self performSegueWithIdentifier:@"showBarDetails" sender:view]; 
} 
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{ 
    if([[segue identifier] isEqualToString:@"showBarDetails"]) 
    { 
     BarDetailViewController *bdvc = [self.storyboard instantiateViewControllerWithIdentifier:@"showBarDetails"]; 
     //This parts confusing me, not sure how I obtain the data 
     // from the above mapView delegation method? 
     // annView.name = bdvc.name; 
     bdvc = segue.destinationViewController; 

    } 
} 

Answer 1

在mapView委託方法

- (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control 
{ 
    [self performSegueWithIdentifier:@"showBarDetails" sender:view]; 
} 

在prepareForSegue：

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{ 
    if([[segue identifier] isEqualToString:@"showBarDetails"]) 
    { 
     MapPoint *annotation = (MapPoint *)view.annotation; 

     BarDetailViewController *bdvc = segue.destinationViewController; 
     bdvc.name = annotation.name; 
     bdvc.otherProperty = annotation.otherProperty; 

    } 
}