Question

我有一个我添加引脚的MKMapView。它们正确加载了相关的图形，但是如果我放大并缩小它们，它们就会松开它们的图形并变成标准的红色针脚，唯一的定制就是针脚名称（即使我的披露指示消失了）。

到目前为止尝试修复它我尝试过：尝试了png，检查更快的设备，将所有内容从MKPinAnnotation更改为MKAnnotation，返回正常的MKAnnotation而不是我的自定义CBAnnotation，各种示例代码用于加载自定义引脚，降低了地图覆盖质量，以防它出现加载问题但仍然是个问题

- (void)addPins {
    mapPinsArray = [[NSMutableArray alloc] init];

    for (MapPoint *mappoint in mapPointsArray) {
        CBAnnotation *annotation = [[CBAnnotation alloc] init];
        annotation.coordinate = CLLocationCoordinate2DMake(mappoint.loclat, mappoint.loclong);
        annotation.title = mappoint.stopAreaName;
        annotation.mapPoint = mappoint;
        [mapPinsArray addObject:annotation];
        [self.myMapView addAnnotation:annotation];
    }
}


- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(CBAnnotation *)annotation {

    if ([annotation isKindOfClass:[MKUserLocation class]]) {
        //do nothing
        return nil;
    } else {
        MKAnnotationView *annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"trailPoint"];
        annotationView.canShowCallout = YES;

        ButtonWithData *accessoryViewButton = [[ButtonWithData alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
        [accessoryViewButton setBackgroundImage:[UIImage imageNamed:@"right_arrow"] forState:UIControlStateNormal];
        accessoryViewButton.buttonData = annotation.mapPoint;
        [accessoryViewButton addTarget:self action:@selector(disclosureButtonPressed:) forControlEvents:UIControlEventTouchUpInside];
        annotationView.rightCalloutAccessoryView = accessoryViewButton;

        if (![[NSUserDefaults standardUserDefaults] boolForKey:annotation.mapPoint.stopAnimalName]) {
            annotationView.image = [annotation.mapPoint lockedPinImage];
        } else {
            annotationView.image = [annotation.mapPoint unlockedPinImage];
        }

        return annotationView;
    }
}

Answer 1

修正了我自己的问题。我将MKMapView子类化为GenericMapView，以便我的代码更清晰（从实际的View Controller中删除showsUserLocation，zoom / scroll / rotateEnabled，showsCompass等），但这意味着委托没有正确设置而且viewForAnnotation不是要求重新加载引脚。

带有自定义引脚的MKMapView在重新加载时返回红色标准引脚

1 个答案: