Hi, I am encountering a problem when the Callout I create doesn't pan with the map programmatically on a call to MapView.centerAt().To reproduce the problem:
- I create a MapView with the World_Street_Map service (i.e. the HelloWorldMap sample)
- I create a point that represents the ESRI HQ in WebMercator coordinates (by reprojecting it from 34.05691 latitude, -117.1957 longitude)
- I construct a Callout at this coordinate
- IF I STOP HERE, THE CALLOUT IS SPATIALLY IN THE CORRECT POSITION
- If I now call MapView.centerAt to the ESRI HQ the map pans so that ESRI HQ is in the center of the map, but the callout is now in Moreno Valley?!?!
- If I were to interactively pan the map the Callout will magically jump back to ESRI HQ in Redlands
Here is additional references and steps to reproduce the problem:Here's my calloutstyle.xml (needs to be placed under res/xml folder):<?xml version="1.0" encoding="utf-8"?> <resources> <calloutViewStyle titleTextColor="#000000" titleTextSize="10" titleTextStyle="0" titleTextTypeFace="0" backgroundColor="#ffffff" backgroundAlpha="255" frameColor="#000000" flat="true" anchor="5" /> </resources>
Here's my Activity's main body (you may need to change package and class names to match your project):package com.esri.android.calloutcentertest; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.widget.TextView; import android.widget.Toast; import com.esri.android.map.Callout; import com.esri.android.map.MapView; import com.esri.android.map.ags.ArcGISDynamicMapServiceLayer; import com.esri.android.map.event.OnSingleTapListener; import com.esri.core.geometry.GeometryEngine; import com.esri.core.geometry.Point; import com.esri.core.geometry.SpatialReference; public class CalloutCenterTestActivity extends Activity { MapView map = null; /** Called when the activity is first created. */ public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // Retrieve the map and initial extent from XML layout map = (MapView)findViewById(R.id.map); map.addLayer(new ArcGISDynamicMapServiceLayer( "http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer") ); // The map.getCallout().setCoordinates() / map.centerAt() bug. Toast.makeText(this, "TAP SCREEN TO SHOW ESRI HQ", Toast.LENGTH_LONG).show(); final Context ctx = this; map.setOnSingleTapListener(new OnSingleTapListener() { private static final long serialVersionUID = 5173550791541184304L; public void onSingleTap(float x, float y) { Toast.makeText(ctx, "SHOWING ESRI HQ IN CALLOUT", Toast.LENGTH_SHORT).show(); // Create a point for ESRI HQ in WebMercator coordinate system. Point esri4326 = new Point(-117.1957, 34.05691); Point esri102100 = (Point) GeometryEngine.project( esri4326, SpatialReference.create(4326), SpatialReference.create(102100) ); // Construct the Callout content. TextView textView = new TextView(ctx); textView.setText("ESRI HQ"); // Show the callout at the correct location. Callout callout = map.getCallout(); callout.setContent(textView); callout.setCoordinates(esri102100); callout.setStyle(R.xml.calloutstyle); callout.refresh(); callout.show(); // The map pans to ESRI HQ but the callout stays behind! map.centerAt(esri102100, true); // If the user pans the map interactively, the callout corrects itself. } } ); } protected void onPause() { super.onPause(); map.pause(); } protected void onResume() { super.onResume(); map.unpause(); } }
