地图视图双击事件不起作用
In my application i want to implement double tap event on map view.For this I'm using following code but doesn't seem to work.Please help me...
Thanks in advance!!
public class NooYawk extends MapActivity implements OnGestureListener, OnDoubleTapListener {
private MapView map=null;
private MyLocationOverlay me=null;
GeoPoint geoPoint;
MapController controller;
OverlayItem overlayItem;
PushPinMapView pushPinMapView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
map=(MapView)findViewById(R.id.map);
// map.getController().setCenter(getPoint(40.76793169992044,-73.98180484771729));
controller=map.getController();
map.setStreetView(true);
map.setBuiltInZoomControls(true);
Drawable marker=getResources().getDrawable(R.drawable.blue);
marker.setBounds(0, 0, marker.getIntrinsicWidth(),
marker.getIntrinsicHeight());
geoPoint=new GeoPoint((int)(19.182 *1E6 ),(int)(72.961 * 1E6));
controller.animateTo(geoPoint);
overlayItem=new OverlayItem(geoPoint, "Current loc","");
List<Overlay> listOverlays= map.getOverlays();
SitesOverlay sitesOverlay=new SitesOverlay(marker);
sitesOverlay.addOverlay(overlayItem);
listOverlays.add(sitesOverlay);
controller.setZoom(6);
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
private class SitesOverlay extends ItemizedOverlay<OverlayItem> {
private List<OverlayItem> items=new ArrayList<OverlayItem>();
public SitesOverlay(Drawable marker) {
super(marker);
}
@Override
protected OverlayItem createItem(int i) {
return(items.get(i));
}
@Override
public void draw(Canvas canvas, MapView mapView,
boolean shadow) {
super.draw(canvas, mapView, shadow);
boundCenterBottom(marker);
}
@Override
public int size() {
return(items.size());
}
public void addOverlay(OverlayItem overlay) {
items.add(overlay);
//System.out.println("success");
populate();
}
}
@Override
public boolean onDown(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
// TODO Auto-generated method stub
return false;
}
@Override
public void onLongPress(MotionEvent e) {
// TODO Auto-generated method stub
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
float distanceY) {
// TODO Auto-generated method stub
return false;
}
@Override
public void onShowPress(MotionEvent e) {
// TODO Auto-generated method stub
}
@Override
public boolean onSingleTapUp(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean onDoubleTap(MotionEvent e) {
controller.zoomIn();
return false;
}
@Override
public boolean onDoubleTapEvent(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
}
In my application i want to implement double tap event on map view.For this I'm using following code but doesn't seem to work.Please help me...
Thanks in advance!!
public class NooYawk extends MapActivity implements OnGestureListener, OnDoubleTapListener {
private MapView map=null;
private MyLocationOverlay me=null;
GeoPoint geoPoint;
MapController controller;
OverlayItem overlayItem;
PushPinMapView pushPinMapView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
map=(MapView)findViewById(R.id.map);
// map.getController().setCenter(getPoint(40.76793169992044,-73.98180484771729));
controller=map.getController();
map.setStreetView(true);
map.setBuiltInZoomControls(true);
Drawable marker=getResources().getDrawable(R.drawable.blue);
marker.setBounds(0, 0, marker.getIntrinsicWidth(),
marker.getIntrinsicHeight());
geoPoint=new GeoPoint((int)(19.182 *1E6 ),(int)(72.961 * 1E6));
controller.animateTo(geoPoint);
overlayItem=new OverlayItem(geoPoint, "Current loc","");
List<Overlay> listOverlays= map.getOverlays();
SitesOverlay sitesOverlay=new SitesOverlay(marker);
sitesOverlay.addOverlay(overlayItem);
listOverlays.add(sitesOverlay);
controller.setZoom(6);
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
private class SitesOverlay extends ItemizedOverlay<OverlayItem> {
private List<OverlayItem> items=new ArrayList<OverlayItem>();
public SitesOverlay(Drawable marker) {
super(marker);
}
@Override
protected OverlayItem createItem(int i) {
return(items.get(i));
}
@Override
public void draw(Canvas canvas, MapView mapView,
boolean shadow) {
super.draw(canvas, mapView, shadow);
boundCenterBottom(marker);
}
@Override
public int size() {
return(items.size());
}
public void addOverlay(OverlayItem overlay) {
items.add(overlay);
//System.out.println("success");
populate();
}
}
@Override
public boolean onDown(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
// TODO Auto-generated method stub
return false;
}
@Override
public void onLongPress(MotionEvent e) {
// TODO Auto-generated method stub
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
float distanceY) {
// TODO Auto-generated method stub
return false;
}
@Override
public void onShowPress(MotionEvent e) {
// TODO Auto-generated method stub
}
@Override
public boolean onSingleTapUp(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean onDoubleTap(MotionEvent e) {
controller.zoomIn();
return false;
}
@Override
public boolean onDoubleTapEvent(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
// TODO Auto-generated method stub
return false;
}
}
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您可以创建一个 GestureDetector 来处理此操作,而且您也可以实现一些像这样的标记(有效):
希望它有帮助..
You could create a GestureDetector to handle this action, but also you can implement some ticks like this (that works):
hope it helps..
我相信您实际上必须创建一个
GestureDetector
才能使用它:我可能是错的,但我没有看到您实际上在代码中的任何地方这样做。看看 this 为例。I believe you actually have to create a
GestureDetector
to use it: I might be wrong, but I don't see you actually doing that anywhere in your code. Take a look at this for an example.