How to draw at the current GPS location on MapView using MyLocationOverlay?

问题

I'm trying to draw a custom gps-location icon. I'm using MapView and have created a class MyLocationArrow that extends MyLocationOverlay.

I override drawMyLocation() and draw a point at 100,100. But this is the coordinates on screen. How do I get the screen-coordinates from the current GPS-location?

回答1:

You can use

android.graphics.Point toPixels(GeoPoint in,
                                android.graphics.Point out)

Converts the given GeoPoint to onscreen pixel coordinates, relative to the top-left of the MapView that provided this Projection.

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来源：https://stackoverflow.com/questions/4624993/how-to-draw-at-the-current-gps-location-on-mapview-using-mylocationoverlay