final int totalDeltaVertical = (int) (y - mInitialMotionY); int nextPage = isVertical ? determineTargetPageVertical(currentPageVertical, pageOffsetVertical, initialVelocityY, totalDeltaVertical) : determineTargetPageHorizontal(currentPageHorizontal, pageOffsetHorizontal, initialVelocityX, totalDeltaHorizontal); if (!isVertical) { setCurrentItemInternalHorizontal(nextPage, true, true, initialVelocityX);