@Override
                public boolean onTouch(View v, MotionEvent event) {
                    if (MotionEventCompat.getActionMasked(event) == MotionEvent.ACTION_DOWN
                            && !mDragOnLongPress) {
                        if (mItemTouchHelper != null && itemDragEnabled) {
                            mItemTouchHelper.startDrag((RecyclerView.ViewHolder) v.getTag(R.id.BaseQuickAdapter_viewholder_support));
                        }
                        return true;
                    } else {
                        return false;
                    }
                }
Set the drag event should be trigger on long press.
Work when the toggleViewId has been set.

@param longPress by default is true.
common/src/main/java/com/sxjs/common/base/baseadapter/BaseItemDraggableAdapter.java