Added a naive fix to enable scrolling when the list is too short

pulltorefresh/src/com/markupartist/android/widget/PullToRefreshListView.java

@@ -5,6 +5,7 @@
 import java.lang.reflect.Method;
 
 import android.content.Context;
+import android.graphics.Canvas;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.LayoutInflater;
@@ -56,6 +57,7 @@ public class PullToRefreshListView extends ListView implements OnScrollListener
     private int mRefreshViewHeight;
     private int mRefreshOriginalTopPadding;
     private int mLastMotionY;
+    private int mHeight = -1;
 
     private boolean mBounceHack;
 
@@ -116,6 +118,22 @@ private void init(Context context) {
         measureView(mRefreshView);
         mRefreshViewHeight = mRefreshView.getMeasuredHeight();
     }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+       super.onDraw(canvas);
+       if (mHeight == -1) {  // do it only once
+    	   mHeight = getHeight(); // getHeight only returns useful data after first onDraw()
+    	   int scrollRange = this.computeVerticalScrollRange();
+    	   if (scrollRange < mHeight) {
+    		    TextView footerView = new TextView(this.getContext());
+    	        footerView.setText(" ");
+    	        footerView.setHeight(mHeight - scrollRange + mRefreshViewHeight + 1);
+    	        addFooterView(footerView);
+    	   }
+       }
+
+    }
 
     @Override
     protected void onAttachedToWindow() {