diff --git a/samplecode/SampleSpiral.cpp b/samplecode/SampleSpiral.cpp
new file mode 100644
index 0000000..1a41440
--- /dev/null
+++ b/samplecode/SampleSpiral.cpp
@@ -0,0 +1,56 @@
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+
+class SpiralView : public SampleView {
+public:
+	SpiralView() {
+        this->setBGColor(0xFFDDDDDD);
+	}
+	
+protected:
+    // overrides from SkEventSink
+    virtual bool onQuery(SkEvent* evt)  {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "Spiral");
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+	
+    virtual void onDrawContent(SkCanvas* canvas) {
+        SkPaint paint;
+        paint.setAntiAlias(true);
+        paint.setStyle(SkPaint::kStroke_Style);
+        paint.setStrokeWidth(SkScalarHalf(SkIntToScalar(3)));
+        paint.setStyle(SkPaint::kFill_Style);
+        
+        SkRect r;
+        SkScalar l,t,x,y;
+        l = SampleCode::GetAnimScalar(SkIntToScalar(10),
+                                      SkIntToScalar(400));
+        t = SampleCode::GetAnimScalar(SkIntToScalar(5),
+                                      SkIntToScalar(200));
+        
+        canvas->translate(320,240);
+        for (int i = 0; i < 35; i++) {
+            paint.setColor(0xFFF00FF0 - i * 0x04000000);
+            SkScalar step = SK_ScalarPI / (55 - i);
+            SkScalar angle = t * step;
+            x = (20 + SkIntToScalar(i) * 5) * SkScalarSinCos(angle, &y);
+            y *= (20 + SkIntToScalar(i) * 5);
+            r.set(x, y, x + SkIntToScalar(10), y + SkIntToScalar(10));
+            canvas->drawRect(r, paint);
+        }
+
+        this->inval(NULL);
+    }
+	
+private:
+    typedef SampleView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new SpiralView; }
+static SkViewRegister reg(MyFactory);
\ No newline at end of file