HttpServer.java in calabash-android-0.3.0

- old
+ new

@@ -84,9 +84,10 @@
 
 		} else if (uri.endsWith("/screenshot")) {
             Bitmap bitmap;
             View rootView = getRootView();
             rootView.setDrawingCacheEnabled(true);
+            rootView.buildDrawingCache(true);
             bitmap = Bitmap.createBitmap(rootView.getDrawingCache());
             rootView.setDrawingCacheEnabled(false);
 
             ByteArrayOutputStream out = new ByteArrayOutputStream();
             bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);