在UIButton的选择器上传递参数 [英] Pass parameter on selector of UIButton

问题描述

我在 MKAnnotation 的标注上有 detailDisclousure 按钮。按下此按钮时，我需要调用一个方法，该方法传递一个参数，该参数标识调用它的注释。怎么可能呢？

I have a detailDisclousure button on the callout of a MKAnnotation. When this button is pressed I need to call a method passing a parameter that identifies the annotation that called it. How could it be done?

这是我的viewForAnnotation：

this is my viewForAnnotation:

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

if ([annotation isKindOfClass:[Annotation class]])
{
    static NSString* identifier = @"identifier";

    MKPinAnnotationView* pinView = (MKPinAnnotationView*)[mapView dequeueReusableAnnotationViewWithIdentifier:identifier];

    if (pinView == nil) 
    {
        pinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier]autorelease];
    }

    Annotation *antt = annotation;

    pinView.canShowCallout = YES;
    pinView.draggable =    YES;

    UIButton* detailButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];

    [detailButton performSelector:@selector(goToViewWithAnnotation:) withObject:antt];

    pinView.rightCalloutAccessoryView = detailButton;

    return pinView;
}

else 
{
    return nil; 
}
}

这是应该调用的方法参数：

And this is the method that should be called with the parameter:

-(void)goToViewWithAnnotation:(Annotation *)annotation
{
    NextViewController *nextView = [[NextViewController alloc]initWithNibName:@"NextViewController" bundle:nil];

nextView.id = annotation.id;

[self.navigationController nextView animated:YES];
}

推荐答案

你可以传递任何 NSInteger 仅通过 UIButton 的标记属性。

you can pass any NSInteger via the tag property of the UIButton only.

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