package com.bawei.week3.activity;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.LinearLayoutManager;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import com.bawei.week3.Apis;
import com.bawei.week3.Bean.ProductsListBean;
import com.bawei.week3.Constants;
import com.bawei.week3.R;
import com.bawei.week3.adapter.RecyclerAdapter;
import com.bawei.week3.presenter.IPresenterImpl;
import com.bawei.week3.view.IView;
import com.jcodecraeer.xrecyclerview.XRecyclerView;
import java.util.HashMap;
import java.util.List;
public class MainActivity extends AppCompatActivity implements IView, View.OnClickListener {
private static final int SPAN_COUNT = 2;
private IPresenterImpl mIPresenterImpl;
private EditText mEdit;
private XRecyclerView mXRecyclerView;
private RecyclerAdapter mAdapter;
/**
* 用成员变量记录页数
*/
private int mPage = 1;
/**
* 用成员变量记录所选条目
*/
private int mSort = 0;
/**
* 用来控制管理器是线性还是网格
*/
private boolean mIsLinear = true;
private TextView mTvComplex, mTvSalesVolume, mTvPrice;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initPresenter();
initView();
initRecyclerView();
}
/**
* 实现P层
*/
private void initPresenter() {
mIPresenterImpl = new IPresenterImpl(this);
}
/**
* 初始化所有控件
*/
private void initView() {
mTvComplex = findViewById(R.id.tv_complex);
mTvSalesVolume = findViewById(R.id.tv_sales_volume);
mTvPrice = findViewById(R.id.tv_price);
mTvComplex.setSelected(true);
findViewById(R.id.iv_search);
findViewById(R.id.iv_change);
mEdit = findViewById(R.id.edit_text);
mXRecyclerView = findViewById(R.id.XRecyclerView);
findViewById(R.id.iv_search).setOnClickListener(this);
findViewById(R.id.iv_change).setOnClickListener(this);
mTvComplex.setOnClickListener(this);
mTvSalesVolume.setOnClickListener(this);
mTvPrice.setOnClickListener(this);
}
/**
* 初始化RecyclerView
*/
private void initRecyclerView() {
mXRecyclerView.setPullRefreshEnabled(true);
mXRecyclerView.setLoadingMoreEnabled(true);
mXRecyclerView.setLoadingListener(new XRecyclerView.LoadingListener() {
@Override
public void onRefresh() {
mPage = 1;
getProductList();
}
@Override
public void onLoadMore() {
getProductList();
}
});
changeRecyclerView();
}
/**
* 切换管理器
*/
private void changeRecyclerView() {
//根据状态判断展示线性还是网格
if (mIsLinear) {
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
mXRecyclerView.setLayoutManager(layoutManager);
} else {
GridLayoutManager layoutManager = new GridLayoutManager(this, SPAN_COUNT);
layoutManager.setOrientation(GridLayoutManager.VERTICAL);
mXRecyclerView.setLayoutManager(layoutManager);
}
//重新创建adapter,因为new 之后数据和点击事件都没有了,所以需要重新添加点击事件
mAdapter = new RecyclerAdapter(this, mIsLinear);
mAdapter.setOnItemClickListener(new RecyclerAdapter.OnItemClickListener() {
@Override
public void onItemClick(int position) {
List<ProductsListBean.Data> data = mAdapter.getData();
Intent intent = new Intent(MainActivity.this, DetailActivity.class);
intent.putExtra(Constants.INTENT_KEY_PRODUCES_PID, data.get(position).getPid());
startActivity(intent);
}
});
mXRecyclerView.setAdapter(mAdapter);
//将状态反选
mIsLinear = !mIsLinear;
}
/**
* 拉取数据
*/
private void getProductList() {
HashMap<String, String> map = new HashMap<>();
map.put(Constants.MAP_KEY_SEARCH_PRODUCTS_KEYWORDS, mEdit.getText().toString());
map.put(Constants.MAP_KEY_SEARCH_PRODUCES_PAGE, String.valueOf(mPage));
map.put(Constants.MAP_KEY_SEARCH_PRODUCES_SORT, String.valueOf(mSort));
mIPresenterImpl.startRequest(Apis.URL_SEARCH_PRODUCTS, map, ProductsListBean.class);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.iv_search:
//开始获取网络数据
getProductList();
break;
case R.id.iv_change:
//切换布局
//因为切换布局时需要new 一个adapter,为了保证数据的一致性,所以先取出老adapter中的老数据
List<ProductsListBean.Data> data = mAdapter.getData();
changeRecyclerView();
//将老数据赋值给新的adapter
mAdapter.setData(data);
break;
case R.id.tv_complex:
//如果当前栏目已经被选中,则再次点击无效,不然就会再次请求
if(!mTvComplex.isSelected()) {
//切换时一定要从第一页获取数据,不然会造成新老数据在一起,导致排序出现问题
mPage = 1;
mSort = 0;
getProductList();
mTvComplex.setSelected(true);
mTvSalesVolume.setSelected(false);
mTvPrice.setSelected(false);
}
break;
case R.id.tv_sales_volume:
if(!mTvSalesVolume.isSelected()) {
mPage = 1;
mSort = 1;
getProductList();
mTvComplex.setSelected(false);
mTvSalesVolume.setSelected(true);
mTvPrice.setSelected(false);
}
break;
case R.id.tv_price:
if(!mTvPrice.isSelected()) {
mPage = 1;
mSort = 2;
getProductList();
mTvComplex.setSelected(false);
mTvSalesVolume.setSelected(false);
mTvPrice.setSelected(true);
}
break;
default:
break;
}
}
@Override
public void showResponseData(Object data) {
if (data instanceof ProductsListBean) {
ProductsListBean productsListBean = (ProductsListBean) data;
List<ProductsListBean.Data> list = productsListBean.getData();
if (mPage == 1) {
mAdapter.setData(list);
} else {
mAdapter.addData(list);
}
mPage++;
mXRecyclerView.refreshComplete();
mXRecyclerView.loadMoreComplete();
}else{
Toast.makeText(this, "获取数据失败", Toast.LENGTH_SHORT).show();
}
}
@Override
public void showResponseFail(Object data) {
if (data instanceof Exception){
Exception e = (Exception)data;
e.printStackTrace();
}
Toast.makeText(this, "网络请求失败", Toast.LENGTH_SHORT).show();
}
}
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转载自blog.csdn.net/yin422706867/article/details/85139620
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