In the API help for Class Callout http://help.arcgis.com/en/arcgismobile/10.0/apis/android/api/com/esri/android/map/Callout.html there is a bad XML file given:<?xml version="1.0" encoding="utf-8"?>
<resources>
<calloutViewStyle
titleTextColor="#000000" // some RGB color or a reference to a color
titleTextSize = 10; // size of the title text in scaled pixels (based on screen density and user font size preference)
titleTextStyle = 0; // See the class Typeface in the Android SDK for available values
titleTextTypeFace = 0; // See the class Typeface in the Android SDK for available values
backgroundColor="#ffffff" // some RGB color or a reference to a color
backgroundAlpha="255" // 0(transparent) to 255(opaque)
frameColor="#000000" // some RGB color or a reference to a color
flat="true" // draws a 3D frame
style.getCornerCurve()="0" // the radius of the window's corners' curvature (max=40)
anchor="5" /> // the position of the anchor (0-8, see ANCHOR_POSITION_xyz constants)
</resources>
i.e. the code example isn't really a well formed XML file but is corrupted with Java comments, Java assignments, Java semicolons, and Java style function calls.