INNER CODE UNIT · Java

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cymcsg/UltimateRecyclerView · UltimateRecyclerView/ultimaterecyclerview/src/main/java/com/marshalchen/ultimaterecyclerview/DragDropTouchListener.java:151

    private boolean down(MotionEvent event) {
        activePointerId = event.getPointerId(0);
        downY = (int) event.getY();
        downX = (int) event.getX();
        return false;
    }


    private boolean move(MotionEvent event) {
        if (activePointerId == -1) {
            return false;
        }

        int pointerIndex = event.findPointerIndex(activePointerId);
        int currentY = (int) event.getY(pointerIndex);
        int deltaY = currentY - downY;
        int mobileViewY = mobileViewStartY + deltaY;
        mobileView.setY(mobileViewY);

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