android - 我如何让我的谷歌地图放大到我当前的位置？

Question

您好，我想让我的 map 放大到我当前的位置。 当前位置当前通过向模拟器发送纬度和经度来定义。 我该怎么做呢？

我当前的mapactivity.java

public class MapsActivity extends MapActivity {

    private MapView mapView;
    private MyLocationOverlay myLocOverlay;
    MapController mc;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.mapactivity);
        initMap();
        initMyLocation();


    }

    /**
     * Initialise the map and adds the zoomcontrols to the LinearLayout.
     */
    private void initMap() {
        mapView = (MapView) findViewById(R.id.mapView);

        View zoomView = mapView.getZoomControls();
        LinearLayout myzoom = (LinearLayout) findViewById(R.id.zoom);
        myzoom.addView(zoomView);
        mapView.displayZoomControls(true);
        mapView.getController().setZoom(17);
    }

    /**
     * Initialises the MyLocationOverlay and adds it to the overlays of the map
     */
    private void initMyLocation() {
        myLocOverlay = new MyLocationOverlay(this, mapView);
        myLocOverlay.enableMyLocation();
        mapView.getOverlays().add(myLocOverlay);

    }

    @Override
    protected boolean isRouteDisplayed() {
        return false;
    }

谢谢。

Answer 1

尝试在您的 initMyLocation 代码末尾添加:

controller = mapView.getController();
mMyLocOverlay.runOnFirstFix(new Runnable() {
            public void run() {
                controller.setZoom(17);
                controller.animateTo(mMyLocOverlay.getMyLocation());
            }
        });

您可以从 initMap 方法中删除这一行:

mapView.getController().setZoom(17);

让我知道是否可行

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