自定义MKAnnotationView与框架,图标和图像 [英] Custom MKAnnotationView with frame,icon and image
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问题描述
我一直在寻找类似于如何设计像这样的自定义MKAnnotationView的解决方案。
I've been searching for a similar solution on how to design a custom MKAnnotationView like this one.
我将MKAnnotation子类化,我能够添加一个名为F的图像。 png
F.png是帧图像,如图所示。
我想要的是添加内部图像。 (我绘制的图片中的蓝色)
I'v subclassed the MKAnnotation and i was able to add an image named F.png the F.png is a frame image as showed in the picture. what i want is to add an inner image. (colored Blue in the picture i draw)
- (MKAnnotationView *)mapView:(MKMapView *)theMapView viewForAnnotation:(id <MKAnnotation>)annotation
{
if ([annotation isKindOfClass:[MKUserLocation class]])
return nil;
static NSString* AnnotationIdentifier = @"AnnotationIdentifier";
MKAnnotationView *annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:AnnotationIdentifier];
if(annotationView)
return annotationView;
else
{
MKAnnotationView *annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationIdentifier];
annotationView.canShowCallout = YES;
annotationView.image = [UIImage imageNamed:[NSString stringWithFormat:@"F.png"]];
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton addTarget:self action:@selector(writeSomething:) forControlEvents:UIControlEventTouchUpInside];
[rightButton setTitle:annotation.title forState:UIControlStateNormal];
annotationView.rightCalloutAccessoryView = rightButton;
annotationView.canShowCallout = YES;
annotationView.draggable = NO;
return annotationView;
}
return nil;
}
推荐答案
在您的代码中
else
{
MKAnnotationView *annotationView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:AnnotationIdentifier];
annotationView.canShowCallout = YES;
//change here
annotationView.image = [UIImage imageNamed:[NSString stringWithFormat:@"F.png"]];
UIImage *frame = [UIImage imageNamed:[NSString stringWithFormat:@"F.png"];
UIImage *image = theImageInFrameInner;
UIGraphicsBeginImageContext(CGSizeMake(pin.size.width, pin.size.height));
[frame drawInRect:CGRectMake(0, 0, frame.size.width, frame.size.height)];
[image drawInRect:CGRectMake(2, 2, 60, 60)]; // the frame your inner image
//maybe you should draw the left bottom icon here,
//then set back the new image, done
annotationView.image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
[rightButton addTarget:self action:@selector(writeSomething:) forControlEvents:UIControlEventTouchUpInside];
[rightButton setTitle:annotation.title forState:UIControlStateNormal];
annotationView.rightCalloutAccessoryView = rightButton;
annotationView.canShowCallout = YES;
annotationView.draggable = NO;
return annotationView;
}
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