Mobile Flex: Increasing Finger Tap Sensitivity

MattSheehan

We've just been testing a Mobile Flex app on an iPhone. One thing we notice is for point features, they are hard to tap. We've made them large in the published service, but too large overwhelms the iPad screen. Just wondered if anybody had found a way to increase the area/sensitivity of a finger tap, to help in selecting features?

Thanks

--Matt

MikeDahm

Matt,
  I use the mapClickHandler within the Map and an extent from the mapPoint of the click to increase the sensitivity.  I adjust the additional numbers that I add to the extent based on the type of map, data and scales that I am working with.  I then use selectionComplete within the feature layer to show the infowindow. 

<esri:Map id="myMap"      
     mapClick="map_mapClickHandler(event)"

private function myMap_mapClickHandler(event:MapMouseEvent):void
   { 
    // set the selection query based on the click
    var vPt:MapPoint = event.mapPoint;
    mapClickPoint = event.mapPoint;
    var vX:Number = vPt.x;
    var vY:Number = vPt.y;
    var vExtent:Extent = new Extent(vX - 20, vY - 20,vX + 20, vY + 20);
    
    queryMapClick.geometry = vExtent;    
    streetLightSelection.selectFeatures(queryMapClick);
    myMap.infoWindow.hide();    
   }