尺寸图钉注释 [英] Size image pin annotation
本文介绍了尺寸图钉注释的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我把个人形象代替了传统的红色别针.当我打开地图以显示图钉时,图像覆盖了整个地图.引脚图片有最大尺寸吗?或者如何在代码中集成某些内容以适应标准标准引脚的尺寸?
I put the personal image instead of the traditional red pin. When I open the map to display the pin, the image cover the entire map. Is there a maximum size of the pin image or how do I integrate something in the code to fit the size standard classic pin?
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
return nil
}
let annotationIdentifier = "SomeCustomIdentifier" // use something unique that functionally identifies the type of pin
var annotationView: MKAnnotationView! = mapView.dequeueReusableAnnotationViewWithIdentifier(annotationIdentifier)
if annotationView != nil {
annotationView.annotation = annotation
} else {
annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: annotationIdentifier)
annotationView.image = UIImage(named: "pin maps.png")
annotationView.canShowCallout = true
annotationView.calloutOffset = CGPointMake(-8, 0)
annotationView.autoresizesSubviews = true
annotationView.rightCalloutAccessoryView = UIButton(type: UIButtonType.DetailDisclosure) as UIView
}
return annotationView
}
推荐答案
销钉图像没有最大尺寸.您需要调整UIImage的大小.
There is not a maximum size of the pin image. You need to resize UIImage.
let annotationIdentifier = "SomeCustomIdentifier"
var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: annotationIdentifier)
if annotationView == nil {
annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: annotationIdentifier)
annotationView?.canShowCallout = true
// Resize image
let pinImage = UIImage(named: "pin maps.png")
let size = CGSize(width: 50, height: 50)
UIGraphicsBeginImageContext(size)
pinImage!.draw(in: CGRect(x: 0, y: 0, width: size.width, height: size.height))
let resizedImage = UIGraphicsGetImageFromCurrentImageContext()
annotationView?.image = resizedImage
let rightButton: AnyObject! = UIButton(type: UIButtonType.detailDisclosure)
annotationView?.rightCalloutAccessoryView = rightButton as? UIView
}
else {
annotationView?.annotation = annotation
}
这篇关于尺寸图钉注释的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文