Implementing extended/custom View throws NoSuchMethod for constructor
===

I have a customized TextView which implements the three View constructors (nb, this is my first stab at an android app):

	public class DynamicGeometryTextView extends TextView {

		public DynamicGeometryTextView (Context con) { super(con); }

		public DynamicGeometryTextView (Context con, AttributeSet attrs) {
			super(con, attrs);
		}

		public DynamicGeometryTextView (Context con, AttributeSet attrs, int style) {
			super(con, attrs, style); 
		}

This is a non-static inner class, since it needs to access instance data from the outer class.  It appears in an .xml layout:

	<view class="cogdis.chalkboard.DisplayText$DynamicGeometryTextView"
		android:id="@+id/chalkboard"
		android:layout_width="wrap_content"
		android:layout_height="wrap_content" /> 

Everything compiles and installs fine, but at runtime:

    Caused by: android.view.InflateException: Binary XML file line #7: Error inflating class cogdis.chalkboard.DisplayText$DynamicGeometryTextView
    	at android.view.LayoutInflater.createView(LayoutInflater.java:596)                                                                         
    	at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:687)                                                                  
    	at android.view.LayoutInflater.rInflate(LayoutInflater.java:746)                                                                           
    	at android.view.LayoutInflater.inflate(LayoutInflater.java:489)                                                                            
    	at android.view.LayoutInflater.inflate(LayoutInflater.java:396)                                                                            
    	at android.view.LayoutInflater.inflate(LayoutInflater.java:352)                                                                            
    	at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:256)                                                       
    	at android.app.Activity.setContentView(Activity.java:1867)                                                                                 
    	at cogdis.chalkboard.DisplayText.onCreate(DisplayText.java:26)                                                                             
    	at android.app.Activity.performCreate(Activity.java:5008)                                                                                  
    	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079)                                                             
    	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023)                                                              
    	... 11 more                                                                                                                                
    Caused by: java.lang.NoSuchMethodException: <init> [class android.content.Context, interface android.util.AttributeSet]                       
    	at java.lang.Class.getConstructorOrMethod(Class.java:460)                                                                                  
    	at java.lang.Class.getConstructor(Class.java:431)                                                                                          
    	at android.view.LayoutInflater.createView(LayoutInflater.java:561)                                                                         
    	... 22 more                                    

                                                                                            

               
To my eye, this implies it can't find the (Context, AttributeSet) version of the constructor...but it exists.  I've looked at a few other SO posts, like http://stackoverflow.com/questions/2884501/android-custom-view-constructor, this all point to the same conclusion (to my eye) and read the API Guide on Custom Components repeatedly, but I've been stumped with this for more than an hour.

Anyone have any ideas? Is there a way to debug this further?