Question

我正在使用右侧附件按钮创建注释标注，使用以下代码

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

if ([annotation isKindOfClass:[MKUserLocation class]]){
    return nil;
}

else {

    static NSString *AnnotationViewID = @"annotationViewID";

    MKAnnotationView *annotationView = (MKAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:AnnotationViewID];

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

    annotationView.image = [UIImage imageNamed:@"Mevents.png"];
    annotationView.annotation = annotation;
    annotationView.canShowCallout=YES;

    UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    [rightButton setTitle:annotation.title forState:UIControlStateNormal];
    [rightButton addTarget:self action:@selector(showDetails:) forControlEvents:UIControlEventTouchUpInside];

    annotationView.rightCalloutAccessoryView = rightButton;

    //  UIImageView *profileIconView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"profile.png"]];
    //  pinView.leftCalloutAccessoryView = profileIconView;
    //  [profileIconView release];

    return annotationView;

}

}

如何跟踪，点击哪个注释？我想使用 id 加载详细信息屏幕，并根据该ID获取数据以显示信息。

Answer 1

创建注释时，为其添加标记

annotationView.image = [UIImage imageNamed:@"Mevents.png"];
//Add this after
annotationView.tag = 111;

现在在viewForAnnotation中，检查此标记

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

if ([annotation isKindOfClass:[MKUserLocation class]]){
    return nil;

    if(annotation.tag == 111)
        //Do something
    else
        //Do some other thing
}

Answer 2

嘿兄弟在下面的帖子中检查我的答案，它可以帮助你。

Pass data to detailView when annotation tapped on mapview

如何跟踪单击的注释标注

2 个答案: