仿饿了吗点餐界面两个ListView联动效果

package com.item.jiejie;import java.util.ArrayList;import java.util.List;import com.item.jiejie.adapter.HomeAdapter;import com.item.jiejie.adapter.MenuAdapter;import com.item.jiejie.entity.FoodData;import android.widget.AbsListView.OnScrollListener;import android.os.Bundle;import android.app.Activity;import android.text.TextUtils;import android.util.Log;import android.view.View;import android.view.Window;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.AbsListView;import android.widget.ListView;import android.widget.TextView;/*** 防饿了的ListView联动的Demo* 有BUG* @author Administrator**/public class MainActivity extends Activity {/**左侧菜单*/private ListView lv_menu;/**右侧主菜*/private ListView lv_home;private TextView tv_title;private MenuAdapter menuAdapter;private HomeAdapter homeAdapter;private int currentItem;/*** 数据源*/private List<FoodData> foodDatas;private String data[] = {"热销榜","新品套餐","便当套餐","单点菜品","饮料类","水果罐头","米饭"};/*** 里面存放右边ListView需要显示标题的条目position*/private ArrayList<Integer> showTitle;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_main);setView();setData();}private void setView() {// TODO Auto-generated method stublv_menu = (ListView)findViewById(R.id.lv_menu);tv_title = (TextView)findViewById(R.id.tv_titile);lv_home = (ListView)findViewById(R.id.lv_home);foodDatas = new ArrayList<FoodData>();for(int i =0;i < data.length; i++){foodDatas.add(new FoodData(i, data[0] + i, data[0]));}for(int i =0;i < data.length -1; i++){foodDatas.add(new FoodData(i, data[1] + i, data[1]));}for(int i =0;i < data.length-2; i++){foodDatas.add(new FoodData(i, data[2] + i, data[2]));}for(int i =0;i < data.length-3; i++){foodDatas.add(new FoodData(i, data[3] + i, data[3]));}for(int i =0;i < data.length-4; i++){foodDatas.add(new FoodData(i, data[4] + i, data[4]));}for(int i =0;i < data.length-3; i++){foodDatas.add(new FoodData(i, data[5] + i, data[5]));}for(int i =0;i < 6; i++){foodDatas.add(new FoodData(i, data[6] + i, data[6]));}showTitle = new ArrayList<Integer>();for(int i = 0; i < foodDatas.size(); i++){if( i ==0){showTitle.add(i );System.out.println(i + "dd");}else if (!TextUtils.equals(foodDatas.get(i).getTitle(), foodDatas.get(i - 1).getTitle())) {showTitle.add(i );System.out.println(i + "dd");}}}private void setData() {// TODO Auto-generated method stubtv_title.setText(foodDatas.get(0).getTitle());menuAdapter = new MenuAdapter(this);homeAdapter = new HomeAdapter(this, foodDatas);lv_menu.setAdapter(menuAdapter);lv_home.setAdapter(homeAdapter);lv_menu.setOnItemClickListener(new OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {// TODO Auto-generated method stubmenuAdapter.setSelectItem(arg2);menuAdapter.notifyDataSetInvalidated();lv_home.setSelection(showTitle.get(arg2));tv_title.setText(data[arg2]);}});lv_home.setOnScrollListener(new OnScrollListener() {private int scrollState;@Overridepublic void onScrollStateChanged(AbsListView view, int scrollState) {// TODO Auto-generated method stub//System.out.println("onScrollStateChanged" + " scrollState" + scrollState);this.scrollState = scrollState;}@Overridepublic void onScroll(AbsListView view, int firstVisibleItem,int visibleItemCount, int totalItemCount) {// TODO Auto-generated method stubif (scrollState == AbsListView.OnScrollListener.SCROLL_STATE_IDLE) { return; } Log.d("jiejie", "onScroll" + " firstVisibleItem" + firstVisibleItem+" visibleItemCount" + visibleItemCount + " totalItemCount" + totalItemCount);int current =showTitle.indexOf(firstVisibleItem );System.out.println(current + "dd" + firstVisibleItem);// lv_home.setSelection(current);if(currentItem != current && current >=0){currentItem = current;tv_title.setText(data[current]);menuAdapter.setSelectItem(currentItem);menuAdapter.notifyDataSetInvalidated();}}});}}

package com.item.jiejie.adapter;import com.item.jiejie.R;import android.content.Context;import android.graphics.Color;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.TextView;/*** 左侧菜单ListView的适配器* @author Administrator**/public class MenuAdapter extends BaseAdapter{private Context context;private int selectItem = 0;private String data[] = {"热销榜","新品套餐","便当套餐","单点菜品","饮料类","水果罐头","米饭"};public MenuAdapter(Context context) {this.context = context;}public int getSelectItem() {return selectItem;}public void setSelectItem(int selectItem) {this.selectItem = selectItem;}@Overridepublic int getCount() {// TODO Auto-generated method stubreturn data.length;}@Overridepublic Object getItem(int arg0) {// TODO Auto-generated method stubreturn null;}@Overridepublic long getItemId(int arg0) {// TODO Auto-generated method stubreturn 0;}@Overridepublic View getView(int arg0, View arg1, ViewGroup arg2) {// TODO Auto-generated method stubViewHolder holder = null;if(arg1 == null) {holder = new ViewHolder();arg1 = View.inflate(context, R.layout.item_menu, null);holder.tv_name = (TextView)arg1.findViewById(R.id.item_name);arg1.setTag(holder);}else {holder = (ViewHolder)arg1.getTag();}if(arg0 == selectItem){holder.tv_name.setBackgroundColor(Color.WHITE);holder.tv_name.setTextColor(context.getResources().getColor(R.color.text_green));}else {holder.tv_name.setBackgroundColor(context.getResources().getColor(R.color.ll_coachback));holder.tv_name.setTextColor(context.getResources().getColor(R.color.text_deep));}holder.tv_name.setText(data[arg0]);return arg1;}static class ViewHolder{private TextView tv_name;}}

package com.item.jiejie.adapter;import java.util.List;import com.item.jiejie.R;import com.item.jiejie.entity.FoodData;import android.content.Context;import android.text.TextUtils;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.TextView;/*** 右侧主界面ListView的适配器* * @author Administrator* */public class HomeAdapter extends BaseAdapter {private Context context;private List<FoodData> foodDatas;public HomeAdapter(Context context, List<FoodData> foodDatas) {this.context = context;this.foodDatas = foodDatas;}@Overridepublic int getCount() {// TODO Auto-generated method stubif(foodDatas!=null){return foodDatas.size();}else { return 10;} }@Overridepublic Object getItem(int arg0) {// TODO Auto-generated method stubreturn null;}@Overridepublic long getItemId(int arg0) {// TODO Auto-generated method stubreturn 0;}@Overridepublic View getView(int arg0, View arg1, ViewGroup arg2) {// TODO Auto-generated method stubViewHold holder = null;if(arg1 == null){arg1 = View.inflate(context, R.layout.item_home, null);holder = new ViewHold();holder.tv_title = (TextView)arg1.findViewById(R.id.item_home_title);holder.tv_name = (TextView)arg1.findViewById(R.id.item_home_name);arg1.setTag(holder);}else {holder = (ViewHold)arg1.getTag();}holder.tv_name.setText(foodDatas.get(arg0).getName());holder.tv_title.setText(foodDatas.get(arg0).getTitle());if(arg0 == 0){holder.tv_title.setVisibility(View.VISIBLE);}else if (!TextUtils.equals(foodDatas.get(arg0).getTitle(), foodDatas.get(arg0 -1).getTitle())) {holder.tv_title.setVisibility(View.VISIBLE);}else {holder.tv_title.setVisibility(View.GONE);}return arg1;}private static class ViewHold{private TextView tv_title;private TextView tv_name;}}