iphone - 当我们单击我的自定义注释图钉时，自定义标注视图未显示在视图中心（iphone）

Question

当我们单击自定义注释图钉时，标注视图不会显示在视图中心，而是显示一半在视图中，其余显示在视图之外。请帮助我。提前致谢

    CGSize const kMultiRowCalloutCellSize = {300,140};

    - (id)initWithAnnotation:(id<MultiRowAnnotationProtocol>)annotation reuseIdentifier:(NSString *)reuseIdentifier onCalloutAccessoryTapped:(MultiRowAccessoryTappedBlock)block {
    self = [super initWithAnnotation:(id<MKAnnotation>)annotation reuseIdentifier:reuseIdentifier];
    if (self) {
        self.contentHeight = 80.0;
        _yShadowOffset = 6;
        self.offsetFromParent = CGPointMake(78, -14); //this works for MKPinAnnotationView
        self.enabled = NO;
        self.backgroundColor = [UIColor clearColor];
        self.cellInsetX = 15;
        self.cellOffsetY = 10;
        self.onCalloutAccessoryTapped = block;
        [self setTitleWithAnnotation:annotation];
        [self setCalloutCellsWithAnnotation:annotation];
    }
    return self;
}

Answer 1

annotationView.centerOffset = CGPointMake( annotationView.centerOffset.x + annotationView.image.size.width/2, annotationView.centerOffset.y - annotationView.image.size.height/2 );

在下面提到的委托方法中添加这些行。

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