将 UINavigationController 的坐标获取到 showDetails 方法中
我有一个地图视图，其中包含引脚注释。当用户按下 pin 信息的公开按钮时，我需要将 pin 的坐标传递到详细视图。当我进入 showDetails 方法时，如何获取 pin 的坐标？我正在使用下一个代码。
- (void)showDetails:(id)sender {
DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil ];
// HERE I NEED TO PASS THE COORDINATES OF THE PIN TO THE DETAILVIEWCONTROLLER.
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
}
- (MKAnnotationView *)mapView:(MKMapView *)theMapView viewForAnnotation:(id <MKAnnotation>)annotation {
// If it's the user location, just return nil.
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
else { // Handles the other annotations.
// Try to dequeue an existing pin view first.
static NSString *AnnotationIdentifier = @"AnnotationIdentifier";
MKPinAnnotationView *pinView = (MKPinAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:AnnotationIdentifier];
if (!pinView) {
// If an existing pin view was not available, creates one.
MKPinAnnotationView *customPinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationIdentifier] autorelease];
customPinView.animatesDrop = YES;
customPinView.canShowCallout = YES;
// Adds a detail disclosure button.
UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton addTarget:self action:@selector(showDetails:) forControlEvents:UIControlEventTouchUpInside];
customPinView.rightCalloutAccessoryView = rightButton;
return customPinView;
} else
pinView.annotation = annotation;
}
return nil;
}
感谢您的阅读。
I have a map view with pins annotations into it. I need to pass to the detail view the coordinates of a pin when the user press the disclosure button of the pin information. How can I get the coordinates of the pin when I am into the showDetails method? I am using the next code.
- (void)showDetails:(id)sender {
DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil ];
// HERE I NEED TO PASS THE COORDINATES OF THE PIN TO THE DETAILVIEWCONTROLLER.
[self.navigationController pushViewController:detailViewController animated:YES];
[detailViewController release];
}
- (MKAnnotationView *)mapView:(MKMapView *)theMapView viewForAnnotation:(id <MKAnnotation>)annotation {
// If it's the user location, just return nil.
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
else { // Handles the other annotations.
// Try to dequeue an existing pin view first.
static NSString *AnnotationIdentifier = @"AnnotationIdentifier";
MKPinAnnotationView *pinView = (MKPinAnnotationView *)[self.mapView dequeueReusableAnnotationViewWithIdentifier:AnnotationIdentifier];
if (!pinView) {
// If an existing pin view was not available, creates one.
MKPinAnnotationView *customPinView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationIdentifier] autorelease];
customPinView.animatesDrop = YES;
customPinView.canShowCallout = YES;
// Adds a detail disclosure button.
UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton addTarget:self action:@selector(showDetails:) forControlEvents:UIControlEventTouchUpInside];
customPinView.rightCalloutAccessoryView = rightButton;
return customPinView;
} else
pinView.annotation = annotation;
}
return nil;
}
Thanks for reading.
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我现在无法为您提供有效的代码解决方案，因为我这里没有我的 Mac。但我可以告诉你一种可能的方法。
在 DetailViewController 中创建一个方法来填充其属性，以便您可以在推送之前从 showDetails 调用它。所以事件的顺序会是这样的。
点击披露按钮->显示详细信息称为 ->创建并填充 DetailViewController ->推送 DetailViewController
希望这对您有帮助
I cannot give you a working code solution right now since i don't have my mac here. But I can tell you about a possible approach.
Create a method in DetailViewController that populates its attributes, so you can call it from showDetails, before you push it. So the sequence of events would be like this.
Click on disclosure button -> showDetails called -> DetailViewController created and populated -> push DetailViewController
Hope this helped you
您可以像这样自定义 UIButton 按钮：
CLLocationCooperative2D pinCooperative;
现在
在你的 viewForAnnotation 中：
最后在 showDetails 方法中获取坐标：
You can your UIButton button custom like this :
CLLocationCoordinate2D pinCoordinate;
}
Now in your viewForAnnotation :
And finally to get the coordinate in the showDetails method :