+ int currentYMotionPosition = (int) motionEvent.getY();
+
+ // Calculate the pre-scroll delta Y.
+ int preScrollDeltaY = previousYPosition - currentYMotionPosition;
+
+ // Initialize a variable to track how much of the scroll is consumed.
+ int[] consumedScroll = new int[2];
+
+ // Initialize a variable to track the offset in the window.
+ int[] offsetInWindow = new int[2];
+
+ // Get the WebView Y position.
+ int webViewYPosition = getScrollY();