Android为TV端助力 listview与recyclerview上下联动

首先是主布局fragment里面的xml文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_reservation"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@drawable/new_main_bg"
    tools:context="com.hhzt.iptv.lvb_w8.activity.ReservationActivity">


    <LinearLayout
        android:id="@+id/layout"
        android:layout_width="@dimen/layx150"
        android:layout_height="match_parent"
        android:orientation="vertical"
        >
        <TextView
            android:id="@+id/title_name"
            android:layout_width="match_parent"
            android:layout_height="@dimen/layx80"
            android:textSize="@dimen/layx30"
            android:textColor="@color/white"
            android:singleLine="true"
            android:layout_gravity="center"
            android:gravity="center"
            android:background="@color/food_title"
            />

        <ListView
            android:id="@+id/listview_left"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:cacheColorHint="#00000000"
            android:divider="@color/bian_white"
            android:dividerHeight="@dimen/layx1"
            android:drawSelectorOnTop="false"
            android:fastScrollEnabled="true"
            android:focusable="true"
            android:background="@color/food_content"
            android:listSelector="@drawable/food_menu_selector"
            android:descendantFocusability="blocksDescendants"
            android:scrollbars="none" >
        </ListView>

    </LinearLayout>

    <LinearLayout
        android:id="@+id/layout_ll"
        android:layout_width="@dimen/layx400"
        android:layout_height="@dimen/layx50"
        android:orientation="horizontal"
        android:layout_alignParentRight="true"
        android:layout_marginRight="@dimen/layx50"
        android:layout_marginTop="@dimen/layx50"
        android:gravity="center"
        >

        <LinearLayout
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            android:layout_gravity="center"
            android:gravity="center"
            android:focusable="true"
            android:clickable="true"
            android:paddingLeft="@dimen/layx10"
            android:paddingRight="@dimen/layx10"
            android:background="@drawable/shopping_selector"
            >
            <ImageView
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="match_parent"
                android:scaleType="fitXY"
                android:padding="@dimen/layx5"
                android:src="@drawable/shopping"
                />
            <TextView
                android:id="@+id/shopping"
                android:layout_width="0dp"
                android:layout_weight="2"
                android:layout_height="match_parent"
                android:layout_gravity="center"
                android:gravity="center"
                android:singleLine="true"
                android:ellipsize="marquee"
                android:textColor="@color/food_d_text"
                android:textSize="@dimen/layx28"
                android:text="购物车"
                />

        </LinearLayout>

        <LinearLayout
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="match_parent"
            android:orientation="horizontal"
            android:layout_gravity="center"
            android:gravity="center"
            android:focusable="true"
            android:clickable="true"
            android:paddingLeft="@dimen/layx10"
            android:paddingRight="@dimen/layx10"
            android:layout_marginLeft="@dimen/layx20"
            android:background="@drawable/shopping_selector"
            >
            <ImageView
                android:layout_width="0dp"
                android:layout_weight="1"
                android:layout_height="match_parent"
                android:scaleType="fitXY"
                android:padding="@dimen/layx5"
                android:src="@drawable/history"
                />
            <TextView
                android:id="@+id/history"
                android:layout_width="0dp"
                android:layout_weight="3"
                android:layout_height="match_parent"
                android:layout_gravity="center"
                android:gravity="center"
                android:singleLine="true"
                android:ellipsize="marquee"
                android:textColor="@color/food_d_text"
                android:textSize="@dimen/layx28"
                android:text="历史订单"
                />
        </LinearLayout>


    </LinearLayout>

    <android.support.v7.widget.RecyclerView
        android:id="@+id/listview_right"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_toRightOf="@id/layout"
        android:layout_below="@id/layout_ll"
        android:paddingLeft="@dimen/layx20"
        android:paddingRight="@dimen/layx20"
        android:layout_marginTop="@dimen/layx20"
        android:nextFocusUp="@+id/shopping"
        android:scrollbars="none"/>
</RelativeLayout>


然后是activity上面的fragment

package com.hhzt.iptv.lvb_w8.fragment;

import android.os.Bundle;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.TextView;

import com.hhzt.iptv.R;
import com.hhzt.iptv.lvb_w8.adapter.FoodAdapter;
import com.hhzt.iptv.lvb_w8.adapter.FoodAdapterRight;
import com.hhzt.iptv.lvb_w8.bean.FoodBean;
import com.hhzt.iptv.lvb_w8.bean.FoodDetailsBean;
import com.hhzt.iptv.lvb_w8.interfaces.IBeanOnSuccessCB;
import com.hhzt.iptv.lvb_y.BaseActivity;
import com.hhzt.iptv.lvb_y.business.UIDataller;
import com.hhzt.iptv.lvb_y.log.LogUtil;
import com.lidroid.xutils.ViewUtils;
import com.lidroid.xutils.view.annotation.ViewInject;

import java.util.ArrayList;

//订餐服务界面
public class ReservationFragment extends BaseFragment implements FoodAdapterRight.OnItemClickListener{

   @ViewInject(R.id.title_name)
   private TextView mWelcomeTextView; //标题
   @ViewInject(R.id.listview_left)
   private ListView mListview_left; //列表list
   @ViewInject(R.id.shopping)
   private TextView mShopping; //购物车
   @ViewInject(R.id.history)
   private TextView mHistory; //历史订单
   @ViewInject(R.id.listview_right)
   private RecyclerView mListViewRight; //菜品详情RecyclerView
   private ArrayList<FoodBean.ListBean> mBean;
   //详情页的list
   private ArrayList<FoodDetailsBean.ListBean> mFoodDetailsBean = new ArrayList<>();

   private FoodAdapterRight mAdapterRight;
   private String mCurTitle = "";
   private int mTitlePos = 0;

   @Override
   public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
      View view = inflater.inflate(R.layout.activity_reservation, container, false);
      ViewUtils.inject(this, view);
      return view;
   }

   @Override
   public void onActivityCreated(Bundle savedInstanceState) {
      super.onActivityCreated(savedInstanceState);
      if (null == savedInstanceState) {
         requseFoodType();
         setMonitor();
      }
   }

   private void setMonitor() {
      mListview_left.setOnKeyListener(new View.OnKeyListener() {
         @Override
         public boolean onKey(View v, int keyCode, KeyEvent event) {
            switch (keyCode){
               case KeyEvent.KEYCODE_DPAD_UP:
                  if(event.getAction() == KeyEvent.ACTION_DOWN){
                     if(mTitlePos > 0){
                        mTitlePos --;
                        mListview_left.setSelection(mTitlePos);
                        requseFoodDetailedMenu(mTitlePos,mBean.get(mTitlePos).getId(),1,1000);
                     }
                  }
                  break;
               case KeyEvent.KEYCODE_DPAD_DOWN:
                  if(event.getAction() == KeyEvent.ACTION_DOWN){
                     if(mTitlePos < mBean.size()-1){
                        mTitlePos ++;
                        mListview_left.setSelection(mTitlePos);
                        requseFoodDetailedMenu(mTitlePos,mBean.get(mTitlePos).getId(),1,1000);
                     }
                  }
                  break;
            }

            return false;
         }
      });

   }

   /**
    * 请求右侧详细数据
    */
   private void requseFoodDetailedMenu(final int pos,int id,int pum,int size){
      UIDataller.getDataller().gotoRequseFoodDetailedMenu(id, pum, size, new IBeanOnSuccessCB<ArrayList<FoodDetailsBean.ListBean>>() {
         @Override
         public void onSuccess(ArrayList<FoodDetailsBean.ListBean> bean) {
            if(pos != mTitlePos){
               return;
            }
            mFoodDetailsBean.clear();
            mFoodDetailsBean = bean;
            initRightAdapter();
         }
      });

   }

   /**
    * 初始化右侧数据
    */
   private void initRightAdapter() {
      if(mAdapterRight == null){
         GridLayoutManager linearLayoutManager = new GridLayoutManager(getActivity(),4);
         mListViewRight.setLayoutManager(linearLayoutManager);
         LogUtil.i("TAG","mListViewRight:"+mListViewRight.getWidth());
         mAdapterRight = new FoodAdapterRight(getActivity(), mFoodDetailsBean, mListViewRight);
         mAdapterRight.setOnKey(this);
         mListViewRight.setAdapter(mAdapterRight);
      }else{
         mAdapterRight.setDataList(mFoodDetailsBean);
         mListViewRight.setAdapter(mAdapterRight);
      }

   }

   /**
    * 请求左侧分类列表
    */
   private void requseFoodType() {
      UIDataller.getDataller().gotoRequseFoodType(new IBeanOnSuccessCB<FoodBean>() {
         @Override
         public void onSuccess(FoodBean bean) {
            mWelcomeTextView.setText(bean.getClassName());
            if(bean.getList() != null && bean.getList().size()>0){
               mBean = bean.getList();
               initTitleType();
               requseFoodDetailedMenu(0,mBean.get(0).getId(),1,1000);
            }
         }
      });
   }

   /**
    * 初始化左边分类并设置值
    */
   private void initTitleType() {

      FoodAdapter adapter = new FoodAdapter(getActivity(),mBean);
      mListview_left.setAdapter(adapter);
   }

   @Override
   public void onItemClick(View view, int position) {
      BaseActivity.getInstance().showToast("单击:"+position,0);
   }

   @Override
   public void onKey(int keykode, View view, int position) {
      switch (keykode){
         case KeyEvent.KEYCODE_DPAD_LEFT:
            mListview_left.setFocusable(true);
            mListview_left.requestFocus();
            mListview_left.setSelection(mTitlePos);
            break;
      }
   }
}

左侧listview的adapter

package com.hhzt.iptv.lvb_w8.adapter;

import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;

import com.hhzt.iptv.R;
import com.hhzt.iptv.lvb_w8.bean.FoodBean;
import com.hhzt.iptv.lvb_y.utils.StringUtil;

import java.util.ArrayList;

/**
 * Created by Administrator on 2017-12-09.
 */

public class FoodAdapter extends BaseAdapter {

    private static final String TAG = FoodAdapter.class.getSimpleName();
    private Context mContext;
    private ArrayList<FoodBean.ListBean> mDataList = new ArrayList<>();
    private int mSelection = 0;

    public FoodAdapter(Context mContext, ArrayList<FoodBean.ListBean> mDataList) {
        this.mContext = mContext;
        this.mDataList = mDataList;
    }

    @Override
    public int getCount() {
        if (null != mDataList)
            return mDataList.size();
        return 0;
    }

    @Override
    public Object getItem(int i) {
        if (null != mDataList)
            return mDataList.get(i);
        return null;
    }

    @Override
    public long getItemId(int i) {
        return 0;
    }

    @Override
    public View getView(int position, View view, ViewGroup viewGroup) {
        ViewHolder viewHolder = null;
        if (null == view){
            viewHolder = new ViewHolder();
            view = LayoutInflater.from(mContext).inflate(R.layout.item_left, null);
            viewHolder.textContent = (Button) view.findViewById(R.id.text_content);
            view.setTag(viewHolder);
        }else {
            viewHolder = (ViewHolder) view.getTag();
        }
        if (null != viewHolder.textContent && null != mDataList && mDataList.size()>0){
            viewHolder.textContent.setText(StringUtil.setText(mDataList.get(position).getName()));

        }else {
            Log.i(TAG, "getView: null == mDataList");
        }
        return view;
    }

    public int getSelection() {
        return mSelection;
    }

    public void setSelection(int selection) {
        mSelection = selection;
        notifyDataSetChanged();
    }

    class ViewHolder{
        Button textContent;
    }
}
adapter里面的xml布局

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <Button
        android:id="@+id/text_content"
        android:layout_width="match_parent"
        android:layout_height="@dimen/layx60"
        android:textColor="@color/bottom_city_color"
        android:gravity="center"
        android:layout_gravity="center"
        android:background="@null"
        android:textSize="@dimen/layx24"/>
</LinearLayout>

RecyclerView的adapter适配器

package com.hhzt.iptv.lvb_w8.adapter;

import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.hhzt.iptv.R;
import com.hhzt.iptv.lvb_w8.bean.FoodDetailsBean;

import java.util.ArrayList;

/**
 * Created by zyf on 2017/5/8.
 * 右边RecyclerView适配器
 */

public class FoodAdapterRight extends RecyclerView.Adapter<FoodAdapterRight.ViewHolder> {

    private static final String TAG = FoodAdapterRight.class.getSimpleName();
    private final LayoutInflater mInflater;
    private final int w;
    private final int h;
    private Context mContext;
    private ArrayList<FoodDetailsBean.ListBean> mDataList = new ArrayList<>();
    private RecyclerView mRecyclerView;
    private OnItemClickListener listener;

    public FoodAdapterRight(Context context, ArrayList<FoodDetailsBean.ListBean> dataList , RecyclerView recyclerView) {
        mContext = context;
        mDataList = dataList;
        mRecyclerView = recyclerView;
        w = mRecyclerView.getWidth();
        h = mRecyclerView.getHeight();
        mInflater = LayoutInflater.from(context);
    }

    @Override
    public FoodAdapterRight.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view =  mInflater.inflate(R.layout.item_right,parent,false);

        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(FoodAdapterRight.ViewHolder holder, final int position) {
        if (null != mDataList && mDataList.size() > 0) {
            ViewGroup.LayoutParams parms = holder.itemView.getLayoutParams();
            parms.width = w/4-20;
            parms.height = h/2-20;
            holder.itemView.setLayoutParams(parms);
            holder.item_name.setText(mDataList.get(position).getName());
            holder.item_price.setText("￥"+mDataList.get(position).getPrice());
            Glide.with(mContext).load(mDataList.get(position).getPictureUrl()).into(holder.item_image);
            holder.item_btn.setOnKeyListener(new View.OnKeyListener() {
                @Override
                public boolean onKey(View v, int keyCode, KeyEvent event) {
                    switch (keyCode){
                        case KeyEvent.KEYCODE_DPAD_LEFT:
                            if(event.getAction() ==KeyEvent.ACTION_DOWN){
                                if(position%4==0){
                                    listener.onKey(KeyEvent.KEYCODE_DPAD_LEFT,v,position);
                                    return true;
                                }
                            }
                            break;
                        case KeyEvent.KEYCODE_DPAD_CENTER:
                        case KeyEvent.KEYCODE_ENTER:
                            if(event.getAction() ==KeyEvent.ACTION_DOWN){
                                listener.onItemClick(v,position);
                                return true;
                            }
                            break;
                    }
                    return false;
                }
            });
        } else {
            Log.i(TAG, "getView: null == mDataList");
        }
    }

    @Override
    public int getItemCount() {
        return mDataList.size();
    }


    class ViewHolder extends RecyclerView.ViewHolder {
        Button item_btn;
        ImageView item_image;
        TextView item_name;
        TextView item_price;
        TextView select_share;
        ViewHolder(View itemView) {
            super(itemView);
            item_btn = (Button) itemView.findViewById(R.id.item_btn);
            item_image = (ImageView) itemView.findViewById(R.id.item_image);
            item_name = (TextView) itemView.findViewById(R.id.item_name);
            item_price = (TextView) itemView.findViewById(R.id.item_price);
            select_share = (TextView) itemView.findViewById(R.id.select_share);
        }
    }

    public void setDataList( ArrayList<FoodDetailsBean.ListBean> dataList){
        mDataList.clear();
        mDataList = dataList;
        notifyDataSetChanged();
    }
    public  interface OnItemClickListener {
        void onItemClick(View view , int position);
        void onKey(int keykode,View view , int position);
    }

    public void setOnKey(OnItemClickListener listener){
        this.listener = listener;
    }

}
适配器里面的xml文件

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/item__view_container"
    android:layout_width="wrap_content"
    android:descendantFocusability="beforeDescendants"
    android:layout_height="wrap_content">

    <Button
        android:id="@+id/item_btn"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="@drawable/vod_item_bg_selector" />



    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:padding="@dimen/layx7"
        android:orientation="vertical"
        >
        <ImageView
            android:id="@+id/item_image"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="3"
            android:scaleType="fitXY" />

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:background="@color/white"
            android:paddingLeft="@dimen/layx20"
            android:paddingRight="@dimen/layx10"
            android:layout_weight="1">
            <TextView
                android:id="@+id/item_price"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                android:ellipsize="marquee"
                android:gravity="center_vertical|left"
                android:paddingBottom="@dimen/layx5"
                android:paddingTop="@dimen/layx5"
                android:singleLine="true"
                android:textColor="@color/red"
                android:textSize="@dimen/layx20" />

            <TextView
                android:id="@+id/item_name"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_above="@id/item_price"
                android:ellipsize="marquee"
                android:gravity="center_vertical|left"
                android:paddingBottom="@dimen/layx5"
                android:paddingTop="@dimen/layx5"
                android:singleLine="true"
                android:textColor="@color/black"
                android:textSize="@dimen/layx20" />


            <TextView
                android:id="@+id/select_share"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:ellipsize="marquee"
                android:gravity="bottom|center_horizontal"
                android:layout_alignParentBottom="true"
                android:layout_alignParentRight="true"
                android:paddingBottom="@dimen/layx5"
                android:paddingTop="@dimen/layx5"
                android:singleLine="true"
                android:textColor="@color/red"
                android:textSize="@dimen/layx20" />
        </RelativeLayout>
    </LinearLayout>
</RelativeLayout>

上述里面的button的背景选择器都没有上传，因为带有图片