XrecyclerView实现加载数据和切换不同布局

compile 'com.jcodecraeer:xrecyclerview:1.3.2'//XrecyclerView

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public class MainActivity extends AppCompatActivity implements ShopSearchViewAPI, View.OnClickListener {

 private ImageView cutImg;
 private Button btnSearch;
 private List list = new ArrayList<>();
 private XRecyclerView xR;
 private EditText editKey;
 private int flag = 1;
 private MyAdapter myAdapter;
 private int i = 1;
 private String string = "手机";
 private String name;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  //加载控件
  initView();
  getData("手机", "1");

  //设置可上拉
  xR.setPullRefreshEnabled(true);
  xR.setLoadingMoreEnabled(true);
  //设置上拉下拉样式
  xR.setRefreshProgressStyle(ProgressStyle.BallSpinFadeLoader);
  xR.setLaodingMoreProgressStyle(ProgressStyle.BallClipRotate);

  clickListener();

  xR.setLoadingListener(new XRecyclerView.LoadingListener() {
   @Override
   public void onRefresh() {
    i = 1;
    list.clear();
    getData(string, "" + i);
    xR.refreshComplete();
   }

   @Override
   public void onLoadMore() {
    i++;
    getData(string, "" + i);
    xR.loadMoreComplete();
   }
  });


 }

 public void getData(String key, String page) {
  ShopSearchPresenter shopSearchPresenter = new ShopSearchPresenter(this, this);
  shopSearchPresenter.getGoodsData("http://120.27.23.105/product/searchProducts", key, page);
 }

 private void clickListener() {
  cutImg.setOnClickListener(this);
  btnSearch.setOnClickListener(this);
 }

 private void initView() {
  cutImg = (ImageView) findViewById(R.id.cutImg);
  btnSearch = (Button) findViewById(R.id.btnSearch);
  xR = (XRecyclerView) findViewById(R.id.xrecyclerview);
  editKey = (EditText) findViewById(R.id.editKey);
 }

 @Override
 public void getSuccess(Object o) {
  GoodsBean o1 = (GoodsBean) o;
  List data = o1.getData();
  list.addAll(data);
  setMyAdapter(flag);
 }

 @Override
 public void getFailed(Exception e) {

 }

 @Override
 public void onClick(View v) {
  switch (v.getId()) {
   case R.id.cutImg:
    if (flag == 1) {
     cutImg.setImageResource(R.drawable.lv_icon);
     flag = 2;
    } else {
     cutImg.setImageResource(R.drawable.grid_icon);
     flag = 1;
    }
    setMyAdapter(flag);
    break;
   case R.id.btnSearch:
    list.clear();
    name = editKey.getText().toString();
    string = name;
    getData(string, "1");
    break;
  }
 }

 public void setMyAdapter(int f) {
  if (f == 1) {
   // 线性布局管理器 VERTICAL默认样式/竖向显示  第三个参数是数据是否到过来显示
   LinearLayoutManager manager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);
   //添加布局管理器
   xR.setLayoutManager(manager);
   myAdapter = new MyAdapter(list, this, f);
   xR.setAdapter(myAdapter);
  } else if (f == 2) {
   // 线性布局管理器 VERTICAL默认样式/竖向显示  第三个参数是数据是否到过来显示
   GridLayoutManager gridLayoutManager = new GridLayoutManager(this, 2, GridLayoutManager.VERTICAL, false);
   //添加布局管理器
   xR.setLayoutManager(gridLayoutManager);
   myAdapter = new MyAdapter(list, this, f);
   xR.setAdapter(myAdapter);
  }
 }
}

public class MyAdapter extends RecyclerView.Adapter {
 private List list;
 private Context context;
 private int flag = 1;
 private View inflate;

 public MyAdapter(List list, Context context, int flag) {
  this.list = list;
  this.context = context;
  this.flag = flag;
 }

 @Override
 public MyAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
  if (flag == 1) {
   inflate = LayoutInflater.from(context).inflate(R.layout.lvitem, parent, false);
  } else if (flag == 2) {
   inflate = LayoutInflater.from(context).inflate(R.layout.griditem, parent, false);
  }

  MyViewHolder myViewHolder = new MyViewHolder(inflate);

  return myViewHolder;
 }

 @Override
 public void onBindViewHolder(MyAdapter.MyViewHolder holder, int position) {

  String images = list.get(position).getImages();
  String[] split = images.split("\\|");
  Glide.with(context).load(split[0]).into(holder.icon);
  holder.title.setText(list.get(position).getTitle());
  holder.bargainPrice.setText("折扣价:" + list.get(position).getBargainPrice() + "");
  holder.price.setText("原价:" + list.get(position).getPrice());
  holder.price.getPaint().setFlags(Paint.STRIKE_THRU_TEXT_FLAG);

 }

 @Override
 public int getItemCount() {
  return list != null ? list.size() : 0;
 }

 class MyViewHolder extends RecyclerView.ViewHolder {

  private ImageView icon;
  private TextView title;
  private TextView bargainPrice;
  private TextView price;

  public MyViewHolder(View itemView) {
   super(itemView);

   icon = (ImageView) itemView.findViewById(R.id.GoodsIcon);
   title = (TextView) itemView.findViewById(R.id.title);
   bargainPrice = (TextView) itemView.findViewById(R.id.bargainPrice);
   price = (TextView) itemView.findViewById(R.id.price);

  }
 }

}

public class ShopSearchModle {


 public void getData(String url, Map map, final ShopSearchPresenterAPI shopSearchPresenterAPI) {
  HttpUtils.getInstance().get(url, map, new CallBack() {
   @Override
   public void onSuccess(Object o) {
    shopSearchPresenterAPI.success(o);
   }

   @Override
   public void onFailed(Exception e) {
    shopSearchPresenterAPI.failed(e);
   }
  }, GoodsBean.class);
 }


}

public class ShopSearchPresenter {

 private ShopSearchViewAPI shopSearchViewAPI;
 private Context context;
 private final ShopSearchModle shopSearchModle;

 public ShopSearchPresenter(ShopSearchViewAPI shopSearchViewAPI, Context context) {
  this.shopSearchViewAPI = shopSearchViewAPI;
  this.context = context;
  shopSearchModle = new ShopSearchModle();
 }

 public void getGoodsData(String url, String keywords, String page) {
  Map map = new HashMap<>();
  map.put("keywords", keywords);
  map.put("page", page);
  shopSearchModle.getData(url, map, new ShopSearchPresenterAPI() {
   @Override
   public void success(Object o) {
    shopSearchViewAPI.getSuccess(o);
   }

   @Override
   public void failed(Exception e) {
    shopSearchViewAPI.getFailed(e);
   }
  });
 }


}

public interface ShopSearchPresenterAPI {

 void success(Object o);

 void failed(Exception e);


}

package wangxuewei.bwie.com.wangxuewei1510c2071219;

/**
 * Created by jim on 2017/12/19.
 */

public interface ShopSearchViewAPI {

 void getSuccess(Object o);

 void getFailed(Exception e);


}

public class HttpUtils {

 private static volatile HttpUtils instance;

 private static Handler handler = new Handler();

 private HttpUtils() {

 }

 public static HttpUtils getInstance() {
  if (instance == null) {
   synchronized (HttpUtils.class) {
    if (instance == null) {
     instance = new HttpUtils();
    }
   }
  }
  return instance;
 }

 //get请求
 public void get(String url, Map map, final CallBack callBack, final Class c) {
  //对url和参数做拼接处理
  StringBuffer stringBuffer = new StringBuffer();
  stringBuffer.append(url);
  //判断是否存在? if中是存在
  if (stringBuffer.indexOf("?") != -1) {
   //判断?是否在最后一位 if中是不在最后一位
   if (stringBuffer.indexOf("?") != stringBuffer.length() - 1) {
    stringBuffer.append("&");
   }
  } else {
   stringBuffer.append("?");
  }
  for (Map.Entry entry : map.entrySet()) {
   stringBuffer.append(entry.getKey())
     .append("=")
     .append(entry.getValue())
     .append("&");
  }
  //判断是否存在& if中是存在
  if (stringBuffer.indexOf("&") != -1) {
   stringBuffer.deleteCharAt(stringBuffer.lastIndexOf("&"));
  }


  //1:创建OkHttpClient对象
  OkHttpClient okHttpClient = new OkHttpClient.Builder().addInterceptor(new Logger()).build();
  //2:创建Request对象
  final Request request = new Request.Builder()
    .get()
    .url(stringBuffer.toString())
    .build();
  //3:创建Call对象
  Call call = okHttpClient.newCall(request);
  //4:请求网络
  call.enqueue(new Callback() {
   //请求失败
   @Override
   public void onFailure(Call call, final IOException e) {
    handler.post(new Runnable() {
     @Override
     public void run() {
      callBack.onFailed(e);
     }
    });
   }

   //请求成功
   @Override
   public void onResponse(Call call, Response response) throws IOException {
    String result = response.body().string();
    //拿到数据解析
    final Object o = new Gson().fromJson(result, c);
    //当前是在子线程,回到主线程中
    handler.post(new Runnable() {
     @Override
     public void run() {
      //回调
      callBack.onSuccess(o);
     }
    });
   }
  });

 }

 //post请求
 public void post(String url, Map map, final CallBack callBack, final Class c) {
  //1:创建OkHttpClient对象
  OkHttpClient okHttpClient = new OkHttpClient();
  //2:提供post请求需要的body对象
  FormBody.Builder builder = new FormBody.Builder();
  for (Map.Entry entry : map.entrySet()) {
   builder.add(entry.getKey(), entry.getValue());
  }
  FormBody body = builder.build();
  //3:创建Request对象
  final Request request = new Request.Builder()
    .post(body)
    .url(url)
    .build();
  //4:创建Call对象
  Call call = okHttpClient.newCall(request);
  //5:请求网络
  call.enqueue(new Callback() {
   //请求失败
   @Override
   public void onFailure(Call call, final IOException e) {
    handler.post(new Runnable() {
     @Override
     public void run() {
      callBack.onFailed(e);
     }
    });
   }

   //请求成功
   @Override
   public void onResponse(Call call, Response response) throws IOException {
    String result = response.body().string();
    //拿到数据解析
    final Object o = new Gson().fromJson(result, c);
    //当前是在子线程,回到主线程中
    handler.post(new Runnable() {
     @Override
     public void run() {
      //回调
      callBack.onSuccess(o);
     }
    });
   }
  });
 }

}

public interface CallBack {

 void onSuccess(Object o);

 void onFailed(Exception e);

}

public class Logger implements Interceptor {
 @Override
 public Response intercept(Chain chain) throws IOException {
  Request original = chain.request();
  HttpUrl url = original.url().newBuilder()
    .addQueryParameter("source", "android")
    .build();
  //添加请求头
  Request request = original.newBuilder()
    .url(url)
    .build();
  return chain.proceed(request);
 }
}