Question

我正在尝试为MKAnnotation旋转图像，当我成功完成时，它的标题也在旋转。有没有办法让标题保持平稳？任何帮助将非常感激！

这是我的代码：

在viewDidLoad（）...

中

let middlePoint = CustomPointAnnotation()
middlePoint.coordinate = self.coordinates
middlePoint.imageName = "routemiddle"
middlePoint.title = "\(hourDetailedRoute):\(minuteDetailedRoute)"
middlePoint.courseDegrees = self.vehicleChangeCourse
self.mapa.addAnnotation(middlePoint)


func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
    if !(annotation is CustomPointAnnotation) {
        return nil
    }

    let reuseId = "annotation"

    var anView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId)
    if anView == nil {
        anView = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
        anView!.canShowCallout = true
    }
    else {
        anView!.annotation = annotation
    }

    let cpa = annotation as! CustomPointAnnotation
    anView!.image = UIImage(named:cpa.imageName)
    anView!.transform = CGAffineTransformRotate(self.mapa.transform, CGFloat(degreesToRadians(cpa.courseDegrees)))


    return anView
}

class CustomPointAnnotation：MKPointAnnotation {

var imageName: String!
var courseDegrees = 0.0

}

enter image description here

Answer 1

我已经弄明白了！我只需要旋转图像而不是旋转整个视图。

<StackPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/null" xmlns:fx="http://javafx.com/fxml/1">
   <children>
      <Pane prefHeight="200.0" prefWidth="200.0">
         <children>
            <ToolBar prefWidth="600.0">
              <items>
                  <Button fx:id="buttonPlay" mnemonicParsing="false" onAction="#handlePlayButtonAction" text="Play" />
                  <Button fx:id="buttonPause" mnemonicParsing="false" onAction="#handlePauseButtonAction" text="Pause" />
                  <Button fx:id="buttonStop" mnemonicParsing="false" onAction="#handleStopButtonAction" text="Stop" />
              </items>
            </ToolBar>
         </children>
      </Pane>
       <Label fx:id="labelHelloWorld" text="Hello World!" />
   </children>
</StackPane>

旋转mkannotation图像而不是标题

1 个答案: