次のコードを使用して、ユーザーの現在の場所にマーカーを表示しています。しかし、マーカーは表示されず、コードは正しい現在位置を示しています。
mapview.setClickable(true);
mapview.setBuiltInZoomControls(true);
mapview.setSatellite(false);
mapControl = mapview.getController();
mapControl.setZoom(12);
myLocationOverlay = new MyLocationOverlay(this, mapview);
mapview.getOverlays().add(myLocationOverlay);
LocationResult locationResult = new LocationResult() {
@Override
public void gotLocation(Location location) {
List<Overlay> overlays = mapview.getOverlays();
overlays.clear();
latE6 = (int) (location.getLatitude() * 1e6);
lonE6 = (int) (location.getLongitude() * 1e6);
String a = String.valueOf(latE6);
String b = String.valueOf(lonE6);
gp = new GeoPoint(latE6, lonE6);
mapControl.setZoom(12);
mapControl.animateTo(gp);
MapOverlay mapOverlay = new MapOverlay(getResources()
.getDrawable(R.drawable.pingreen));
OverlayItem overlayItem = new OverlayItem(new GeoPoint(latE6,
lonE6), a, b);
mapOverlay.addOverlay(overlayItem);
overlays.add(mapOverlay);
mapview.invalidate();
}
};
MyLocation myLocation = new MyLocation();
myLocation.getLocation(this, locationResult);
}
@Override
protected boolean isRouteDisplayed() {
return false;
}
@Override
protected void onResume() {
myLocationOverlay.enableCompass();
myLocationOverlay.enableMyLocation();
super.onResume();
}
@Override
protected void onPause() {
myLocationOverlay.disableCompass();
myLocationOverlay.disableMyLocation();
super.onPause();
}
public class MapOverlay extends ItemizedOverlay<OverlayItem> {
private ArrayList<OverlayItem> mOverlays = new ArrayList<OverlayItem>();
public MapOverlay(Drawable defaultMarker) {
super(boundCenterBottom(defaultMarker));
}
public void addOverlay(OverlayItem overlay) {
mOverlays.add(overlay);
populate();
}
@Override
protected OverlayItem createItem(int i) {
return mOverlays.get(i);
}
@Override
public int size() {
return mOverlays.size();
}
@Override
protected boolean onTap(int index) {
OverlayItem item = mOverlays.get(index);
AlertDialog.Builder dialog = new AlertDialog.Builder(
PickUpLocation.this);
dialog.setTitle(item.getTitle());
dialog.setMessage(item.getSnippet());
dialog.show();
return true;
}
@Override
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.getOverlays().add(new MarkerOverlay(p));
mapView.invalidate();
}
return false;
}
}
class MarkerOverlay extends Overlay {
private GeoPoint p;
public MarkerOverlay(GeoPoint p) {
this.p = p;
}
@Override
public boolean draw(Canvas canvas, MapView mapView, boolean shadow,
long when) {
super.draw(canvas, mapView, shadow);
// ---translate the GeoPoint to screen pixels---
Point screenPts = new Point();
mapView.getProjection().toPixels(p, screenPts);
// ---add the marker---
Bitmap bmp = BitmapFactory.decodeResource(getResources(),
R.drawable.pingreen);
canvas.drawBitmap(bmp, screenPts.x, screenPts.y - 50, null);
return true;
}
}
これについて私を助けてください。前もって感謝します