Skobbler Android - 如何在地图的注释中设置自定义图像？

Question

如标题所示，我尝试将自己的图像放在地图上的注释中。 为此，我使用以下代码：

annotation.setImagePath (mImagePath);
annotation.setImageSize (4096);
annotation.setOffset (mSKScreenPoint));

没有错误但什么也没有出现。

但我遵循了文档的指示：

"Sets the absolute path of the image file to be added as an annotation. 
The picture must be a square image and the size must be a power of 2. 
_ (32x32, 64x64, etc.)."

我的图片大小是 64 * 64。

感谢这篇文章，我有了第一个迹象，但没有出现任何迹象：

How do I set a custom image on an map annotation?

所以我将图像转换为 png-24，但仍然没有结果。 (((

Answer 1

在 2.1.0 中，我们添加了对使用资源包中的图像的支持并扩展了完整路径图像的示例 - 这是更新后的 prepareAnnotations 代码：

更新：添加了对 2.2.0 的 customView 支持：

/**
 * Draws annotations on map
 */
private void prepareAnnotations() {

    // get the annotation object
    SKAnnotation annotation1 = new SKAnnotation();
    // set unique id used for rendering the annotation
    annotation1.setUniqueID(10);
    // set annotation location
    annotation1.setLocation(new SKCoordinate(-122.4200, 37.7765));
    // set minimum zoom level at which the annotation should be visible
    annotation1.setMininumZoomLevel(5);
    // set the annotation's type
    annotation1.setAnnotationType(SKAnnotation.SK_ANNOTATION_TYPE_RED);
    // render annotation on map
    mapView.addAnnotation(annotation1, SKAnimationSettings.ANIMATION_NONE);

    SKAnnotation annotation2 = new SKAnnotation();
    annotation2.setUniqueID(11);
    annotation2.setLocation(new SKCoordinate(-122.410338, 37.769193));
    annotation2.setMininumZoomLevel(5);
    annotation2.setAnnotationType(SKAnnotation.SK_ANNOTATION_TYPE_GREEN);
    mapView.addAnnotation(annotation2, SKAnimationSettings.ANIMATION_NONE);

    SKAnnotation annotation3 = new SKAnnotation();
    annotation3.setUniqueID(12);
    annotation3.setLocation(new SKCoordinate(-122.430337, 37.779776));
    annotation3.setMininumZoomLevel(5);
    annotation3.setAnnotationType(SKAnnotation.SK_ANNOTATION_TYPE_BLUE);
    mapView.addAnnotation(annotation3, SKAnimationSettings.ANIMATION_NONE);

    // add an annotation with an image file
    SKAnnotation annotation = new SKAnnotation();
    annotation.setUniqueID(13);
    annotation.setLocation(new SKCoordinate(-122.434516, 37.770712));
    annotation.setMininumZoomLevel(5);


    DisplayMetrics metrics = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(metrics);
    if (metrics.densityDpi < DisplayMetrics.DENSITY_HIGH) {
        // set the center point of the image - tapping on an annotation will
        // depend on
        // this value . Also the actual gps coordinates of the annotation
        // will
        // be in the center of the image.
        annotation.getOffset().setX(16);
        annotation.getOffset().setY(16);
        annotation.setImagePath(SKMaps.getInstance().getMapInitSettings().getMapResourcesPath()
                + "/.Common/poi_marker.png");
        // set the size of the image in pixels
        annotation.setImageSize(32);
    } else {
        // set the center point of the image - tapping on an annotation will
        // depend on
        // this value . Also the actual gps coordinates of the annotation
        // will
        // be in the center of the image.
        annotation.getOffset().setX(32);
        annotation.getOffset().setY(32);
        annotation.setImagePath(SKMaps.getInstance().getMapInitSettings().getMapResourcesPath()
                + "/.Common/poi_marker_retina.png");
        // set the size of the image in pixels
        annotation.setImageSize(64);

    }
    mapView.addAnnotation(annotation, SKAnimationSettings.ANIMATION_NONE);


    // add an annotation with a drawable resource
    SKAnnotation annotationDrawable = new SKAnnotation();
    annotationDrawable.setUniqueID(14);
    annotationDrawable.setLocation(new SKCoordinate(-122.437182, 37.777079));
    annotationDrawable.setMininumZoomLevel(5);
    // set the center point of the image - tapping on an annotation will
    // depend on
    // this value . Also the actual gps coordinates of the annotation will
    // be in the center of the image.
    annotationDrawable.setOffset(new SKScreenPoint(64, 64));
    SKAnnotationView annotationView = new SKAnnotationView();
    annotationView.setDrawableResourceId(R.drawable.icon_map_popup_navigate);
    // set the width and height of the image in pixels (they have to be
    // powers of 2)
    annotationView.setWidth(128);
    annotationView.setHeight(128);
    annotationDrawable.setAnnotationView(annotationView);
    mapView.addAnnotation(annotationDrawable, SKAnimationSettings.ANIMATION_NONE);


    // // add an annotation with a view
    SKAnnotation annotationFromView = new SKAnnotation();
    annotationFromView.setUniqueID(15);
    annotationFromView.setLocation(new SKCoordinate(-122.423573, 37.761349));
    annotationFromView.setMininumZoomLevel(5);
    annotationView = new SKAnnotationView();

    // set view object to be displayed as annotation
    annotationView.setView(customView);
    annotationFromView.setAnnotationView(annotationView);
    mapView.addAnnotation(annotationFromView, SKAnimationSettings.ANIMATION_NONE);


    selectedAnnotation = annotation1;
    // set map zoom level
    mapView.setZoom(13);
    // center map on a position
    mapView.centerMapOnPosition(new SKCoordinate(-122.4200, 37.7765));
}

Answer 2

如果您的图像是 64*64，则应将图像尺寸设置为 64。

annotation.setImageSize(64);