仿饿了吗点餐界面ListView联动的实现

<&＃63;xml version="1.0" encoding="utf-8"&＃63;>

mListMenu.setOnItemClickListener(new ListView.OnItemClickListener(){
@Override
public void onItemClick(AdapterView<&＃63;> adapterView, View view, int i, long l) {
//设置当前点击项为i项
mMenuAdapter.setSelectItem(i);
mMenuAdapter.notifyDataSetInvalidated();//
//设置ItemListView的点击项为i项的第一个item
mListItem.setSelection(mTitleList.get(i));
}
});

mTitleList = new ArrayList();
//遍历所有item.size(),然后将第一个title不同的项对应的值保存起来，则关联到每一个item对应到size中的值
for (int i=0;i

mListItem.setOnScrollListener(new AbsListView.OnScrollListener() {
private int scrollState;
@Override
public void onScrollStateChanged(AbsListView absListView, int i) {
this.scrollState = i;
}
@Override
public void onScroll(AbsListView absListView,
int firstVisibleItem,
int visibleItemCount,
int totalItemCount) {
if(scrollState== AbsListView.OnScrollListener.SCROLL_STATE_IDLE){
return;
}
//判断当前的item是否是view中第一个可见的item
int current = mTitleList.indexOf(firstVisibleItem);
if(current!=currentItem && current>0){
currentItem=current;
//若不是的话，将menuListView的item设置currentItem，来与itemListView关联
mMenuAdapter.setSelectItem(currentItem);
mMenuAdapter.notifyDataSetInvalidated();
}
}
});