Android openstreetmap-如何在屏幕中央设置标记？

我正在尝试使用

osmbonuspack\u v4.8 ilb

显示标记。 标记已显示，但它位于屏幕的左上方。 我试着站在中间，但不行。我不知道原因

请告诉我最好的方法

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mapView = (MapView) findViewById(R.id.mapview);
        mapView.setBuiltInZoomControls(true);
        mapView.setMultiTouchControls(true);

        mapView.setTileSource(TileSourceFactory.MAPNIK);
        mapController = (MapController) this.mapView.getController();
        mapController.setZoom(15);
        GeoPoint center = new GeoPoint(52.221, 6.893);
        mapController.animateTo(center);
        //mapController.setCenter(center);

        //--- Create Overlay
        addMarker(center);

        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
}

您可以这样尝试：

protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mapView = (MapView) findViewById(R.id.mapview);
        mapView.setBuiltInZoomControls(true);
        mapView.setMultiTouchControls(true);

        DisplayMetrics displayMetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);

        int width = displayMetrics.widthPixels;
        int height = displayMetrics.heightPixels;
        mapView.setBottom(height);
        mapView.setRight(width);
        mapView.setTileSource(TileSourceFactory.MAPNIK);
        mapController = (MapController) this.mapView.getController();
        mapController.setZoom(15);
        GeoPoint center = new GeoPoint(52.221, 6.893);
        mapController.animateTo(center);
        //mapController.setCenter(center);

        //--- Create Overlay
        addMarker(center);

        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);
}

---

我希望这有帮助

试试这个。它应该在屏幕的中心点绘制您的点

        DisplayMetrics displayMetrics = new DisplayMetrics();
        getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);

        int width = displayMetrics.widthPixels;
        int height = displayMetrics.heightPixels;

        IGeoPoint pt = mMapView.getProjection().fromPixels(width/2, height/2);
        mapView.getController().animateTo(pt);

        //--- Create Overlay
        addMarker(pt);

---

谢谢你的帮助，看起来不太对劲。专门设置地图视图的底部和右侧。位置是硬编码的什么？您是否试图在屏幕中心的横向/纵向位置放置图标？还是别的什么？