我如何添加一个标记在地图上的特定位置？

我看到这个code，显示触摸位置的坐标。我想一个标记弹出，或在同一位置每次它被触摸显示。我该怎么做呢？

 公共布尔的onTouchEvent（MotionEvent事件，图形页面图形页面）{
                如果（event.getAction（）== 1）{
                    的GeoPoint P = MapView.getProjection（）在。fromPixels（
                        （int）的event.getX（），
                        （int）的event.getY（））;
                        Toast.makeText（getBaseContext（），
                            p.getLatitudeE6（）/ 1E6 +，+
                            p.getLongitudeE6（）/ 1E6，
                            Toast.LENGTH_SHORT）.show（）;

                        mapView.invalidate（）;
                }
                返回false;
            }
 

解决方案

您要添加的 OverlayItem 。该谷歌MapView类教程展示了如何使用它

How do I add a marker on a particular location in the map?

I saw this code that shows the coordinates of the touched location. And I want a marker to pop or be shown in that same location everytime it is touched. How do I do this?

 public boolean onTouchEvent(MotionEvent event, MapView mapView) {   
                if (event.getAction() == 1) {                
                    GeoPoint p = mapView.getProjection().fromPixels(
                        (int) event.getX(),
                        (int) event.getY());
                        Toast.makeText(getBaseContext(), 
                            p.getLatitudeE6() / 1E6 + "," + 
                            p.getLongitudeE6() /1E6 , 
                            Toast.LENGTH_SHORT).show();

                        mapView.invalidate();
                }                            
                return false;
            }

You want to add an OverlayItem. The Google Mapview tutorial shows how to use it.