Android listview定位到上次显示的位置的实现方法

private int scrolledX = 0;private int scrolledY = 0;

ClassesLV.setOnScrollListener(new OnScrollListener() {/*** 滚动状态改变时调用*/@Overridepublic void onScroll(AbsListView view, int firstVisibleItem,int visibleItemCount, int totalItemCount) {}@Overridepublic void onScrollStateChanged(AbsListView view, int scrollState) {if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {try {　　scrolledX = view.getFirstVisiblePosition();　　Log.i("scroll X", String.valueOf(scrolledX));　　scrolledY = view.getChildAt(0).getTop();　　Log.i("scroll Y", String.valueOf(scrolledY));} catch (Exception e) {}}}//});

public void onBack() {　　ClassesLV.setSelectionFromTop(scrolledX, scrolledY);}protected void onResume() {　　// ClassesLV.scrollTo(scrolledX, scrolledY);　　onBack();　　// initDataFromNet();　　isClick = 0;　　super.onResume();}