SwipeView类似桌面的滑动界面(20)

                            else 
                            { 
                                if(event.getY()<(PageControl.this.getHeight()/2)) //if on top half of view 
                                { 
                                    if(mCurrentPage>0) 
                                    { 
                                        mOnPageControlClickListener.goBackwards(); 
                                    } 
                                } 
                                else //if on bottom half of view 
                                { 
                                    if(mCurrentPage<(mPageCount-1)) 
                                    { 
                                        mOnPageControlClickListener.goForwards();