1

我目前正在使用 mapquest 进行 MapView，并且需要将叠加层添加到位置。目前我的 MapView 正在工作，但没有出现覆盖。关于如何解决它的任何想法？还可以在叠加层上创建一个 onClick 以将我带到 ListView 吗？谢谢提前！！

我的主要活动

public class QMapsActivity extends MapActivity {

protected MapView map;
AnnotationView annot;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(getLayoutId());      
    init();       
    annot = new AnnotationView(map);


}

protected void init() {
    // TODO Auto-generated method stub
    this.setupMapView();    


}

protected void setupMapView() {
    // set the zoom level, center point and enable the default zoom controls 
    map = (MapView) findViewById(R.id.map);
    map.getController().setZoom(16);
    map.getController().setCenter(new GeoPoint(1.309503,103.777793));
    map.setBuiltInZoomControls(true);

}

protected int getLayoutId() {
    return R.layout.main;
}


@Override
protected boolean isRouteDisplayed() {
    // TODO Auto-generated method stub
    return false;
}
}

还有我的 Overlay 课

public class QPoiOverlay extends QMapsActivity{

protected void init() {
    super.init();
    setupMapView();

}

protected void addPoiOverlay() {
    // TODO Auto-generated method stub
    Drawable icon = getResources().getDrawable(R.drawable.location_marker);
    final DefaultItemizedOverlay poiOverlay = new DefaultItemizedOverlay(icon);

    OverlayItem loc1 = new OverlayItem(new GeoPoint (1.308763,103.777321), "area","area");
    poiOverlay.addItem(loc1);
    OverlayItem loc2 = new OverlayItem(new GeoPoint (1.309498,103.777101), "area","area");
    poiOverlay.addItem(loc2);
    OverlayItem loc3 = new OverlayItem(new GeoPoint (1.311531,103.778318), "area","area");
    poiOverlay.addItem(loc3);
    OverlayItem loc4 = new OverlayItem(new GeoPoint (1.308071,103.77841), "area","area");
    poiOverlay.addItem(loc4);

    poiOverlay.setOnFocusChangeListener(new ItemizedOverlay.OnFocusChangeListener() {

        @Override
        public void onFocusChanged(ItemizedOverlay Overlay, OverlayItem newFocus) {
            // when focused item changes, recenter map and show info
            map.getController().animateTo(newFocus.getPoint());
            Toast.makeText(map.getContext().getApplicationContext(), newFocus.getTitle() + ": " + 
                    newFocus.getSnippet(), Toast.LENGTH_SHORT).show();

            int lastTouchedIndex = poiOverlay.getLastFocusedIndex();
            if(lastTouchedIndex>-1){
                OverlayItem tapped = poiOverlay.getItem(lastTouchedIndex);
                annot.showAnnotationView(tapped);

            }

        }           
    });

    map.getOverlays().add(poiOverlay);
    map.invalidate();

} 

}
4

0 回答 0