Question

annotationView气泡尺寸太小了10次。我选择一行时调用[self.mapView selectAnnotation:self.selectedVenue animated:YES];来显示注释视图。无论我设置animated: YES还是NO，它仍然显示错误的大小。但是，如果我将地图视图高度的大小增加到至少200像素，一切看起来都不错，除了地图视图对于3.5英寸屏幕来说太大了。

我希望地图视图为此尺寸和注释气泡，以正确覆盖标题和副标题。

图片：https://dl.dropboxusercontent.com/u/5105730/anno.png

以下是我创建注释视图的方法。

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

if ([annotation isKindOfClass:[FSVenue class]]) {
    static NSString *PlaceAnnotationIdentifier = @"Place Identifier";

    MKPinAnnotationView *annotationView = (MKPinAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:PlaceAnnotationIdentifier];

    if (annotationView == nil)  {
        annotationView = [[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:PlaceAnnotationIdentifier];
    }

    annotationView.annotation = annotation;

    UIButton *calloutButton = [UIButton buttonWithType:(UIButtonTypeContactAdd)];
    calloutButton.tintColor = self.themeColor;

    annotationView.enabled = YES;
    annotationView.pinColor = MKPinAnnotationColorGreen;
    annotationView.canShowCallout = YES;
    annotationView.rightCalloutAccessoryView = calloutButton;
    annotationView.animatesDrop = YES;

    return annotationView;
}

return nil;

}

Answer 1

添加这样的注释后，您必须缩放地图视图的可见矩形。

[self.yourMapview addAnnotations:self.yourAnnotationsArray];
[self zoomToAnnotations];

在添加注释后调用此方法

-(void)zoomToAnnotations{

    MKMapRect zoomRect = MKMapRectNull;

    for (_yourAnnotation in self.yourMapView.annotations) {
        MKMapPoint annotationPoint = MKMapPointForCoordinate(_yourAnnotation.coordinate);
        MKMapRect pointRect = MKMapRectMake(annotationPoint.x, annotationPoint.y, 0.1, 0.1);
        if (MKMapRectIsNull(zoomRect)) {
            zoomRect = pointRect;
        }else{
            zoomRect = MKMapRectUnion(zoomRect, pointRect);
        }
    }
    if (zoomRect.size.width == 0.10) /* for single annotation available in map */
    {
        zoomRect = MKMapRectMake(zoomRect.origin.x, zoomRect.origin.y, 100000, 100000);
    }

    [[self yourMapView] setVisibleMapRect:zoomRect edgePadding:UIEdgeInsetsMake(50, 50, 50, 50) animated:YES];

}

MKPinAnnotationView无法正常显示

1 个答案: