ArcGIS Runtime Android设定地图点击后不能放大缩小的问题解决

问题描述

arcgis runtime for android开发时，如果对地图设定了自定义点击事件后，地图变的不能放大缩小，大概率是通过new View.OnTouchListener(){}的方式设置的事件。如：

mapView.setOnTouchListener(new View.OnTouchListener() {
   @Override
   public boolean onTouch(View v, MotionEvent event) { 
	   if(event.getAction() == MotionEvent.ACTION_UP){ 
		   Point mapPoint = mapView.screenToLocation(new android.graphics.Point((int)event.getX(), (int)event.getY()));

		   Graphic g = new Graphic(mapPoint, markerSymbol); 
		   drawLayer.getGraphics().add(g); 
	   }
	   return true;
   }
});

问题解决

解决的方法是通过 new DefaultMapViewOnTouchListener()来设定事件，代码如下：

mapView.setOnTouchListener(new DefaultMapViewOnTouchListener(mapView.getContext(), mapView){

	@Override
	public boolean onSingleTapUp(MotionEvent event) {  
			Point mapPoint = mapView.screenToLocation(new android.graphics.Point((int)event.getX(), (int)event.getY()));
			Graphic g = new Graphic(mapPoint, markerSymbol); 
			drawLayer.getGraphics().add(g); 
		return super.onSingleTapUp(event);
	}

 });