andriod——加入购物车
来源：互联网 发布：网易房产住宅成交数据 编辑：程序博客网 时间：2024/05/21 19:35
adapter——RvAdapter
package com.example.goodscar.adapter;import android.content.Context;import android.support.v7.widget.RecyclerView;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.CheckBox;import android.widget.TextView;import com.example.goodscar.MyView;import com.example.goodscar.R;import com.example.goodscar.bean.GoosBean;import com.example.goodscar.eventbusevent.MessageEvent;import com.example.goodscar.eventbusevent.PriceAndCountEvent;import org.greenrobot.eventbus.EventBus;import java.util.ArrayList;import java.util.List;public class RvAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { private Context context; private List<GoosBean.DataBean.DatasBean> list; private List<String> pidList = new ArrayList<>(); public RvAdapter(Context context, List<GoosBean.DataBean.DatasBean> list) { this.context = context; this.list = list; } @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View view = LayoutInflater.from(context).inflate(R.layout.child, parent, false); return new MyViewHolder(view); } @Override public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) { final GoosBean.DataBean.DatasBean datasBean = list.get(position); final MyViewHolder myViewHolder = (MyViewHolder) holder; myViewHolder.cbChild.setChecked(datasBean.isChecked()); myViewHolder.tv_tel.setText(datasBean.getType_name()); myViewHolder.tv_content.setText(datasBean.getMsg()); myViewHolder.tv_time.setText(datasBean.getAdd_time()); myViewHolder.tv_price.setText(datasBean.getPrice() + ""); myViewHolder.myView.setNum(datasBean.getNum() + ""); //checkbox点击事件 myViewHolder.cbChild.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { datasBean.setChecked(myViewHolder.cbChild.isChecked()); PriceAndCountEvent compute = compute(); EventBus.getDefault().post(compute); if (myViewHolder.cbChild.isChecked()) { pidList.add(datasBean.getCart_id()); if (isAllCbSelected()) { //改变"全选"状态 changeAllCbState(true); } } else { pidList.remove(datasBean.getCart_id()); changeAllCbState(false); } notifyDataSetChanged(); } }); myViewHolder.myView.setAddClickListener(new View.OnClickListener() { @Override public void onClick(View v) { int num = myViewHolder.myView.getNum(); num++; datasBean.setNum(num); if (myViewHolder.cbChild.isChecked()) { EventBus.getDefault().post(compute()); } notifyDataSetChanged(); } }); myViewHolder.myView.setDelClickListener(new View.OnClickListener() { @Override public void onClick(View v) { int num = myViewHolder.myView.getNum(); if (num == 1) { return; } num--; datasBean.setNum(num); if (myViewHolder.cbChild.isChecked()) { EventBus.getDefault().post(compute()); } notifyDataSetChanged(); } }); myViewHolder.tv_del.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { list.remove(position); EventBus.getDefault().post(compute()); notifyDataSetChanged(); } }); } /** * 改变全选的状态 * * @param flag */ private void changeAllCbState(boolean flag) { MessageEvent messageEvent = new MessageEvent(); messageEvent.setChecked(flag); EventBus.getDefault().post(messageEvent); } private boolean isAllCbSelected() { for (int i = 0; i < list.size(); i++) { GoosBean.DataBean.DatasBean datasBean = list.get(i); if (!datasBean.isChecked()) { return false; } } return true; } @Override public int getItemCount() { return list.size(); } class MyViewHolder extends RecyclerView.ViewHolder { private final CheckBox cbChild; private final TextView tv_tel; private final TextView tv_content; private final TextView tv_time; private final TextView tv_price; private MyView myView; private final TextView tv_del; public MyViewHolder(View itemView) { super(itemView); cbChild = itemView.findViewById(R.id.cb_child); tv_tel = itemView.findViewById(R.id.tv_tel); tv_content = itemView.findViewById(R.id.tv_content); tv_time = itemView.findViewById(R.id.tv_time); tv_price = itemView.findViewById(R.id.tv_pri); tv_del = itemView.findViewById(R.id.tv_del); myView = itemView.findViewById(R.id.mv); } } private PriceAndCountEvent compute() { int price = 0; int count = 0; for (int i = 0; i < list.size(); i++) { GoosBean.DataBean.DatasBean datasBean = list.get(i); if (datasBean.isChecked()) { price += datasBean.getPrice() * datasBean.getNum(); count += datasBean.getNum(); } } PriceAndCountEvent priceAndCountEvent = new PriceAndCountEvent(); priceAndCountEvent.setPrice(price); priceAndCountEvent.setCount(count); return priceAndCountEvent; } public void allSelect(boolean flag) { for (int i = 0; i < list.size(); i++) { GoosBean.DataBean.DatasBean datasBean = list.get(i); datasBean.setChecked(flag); } EventBus.getDefault().post(compute()); notifyDataSetChanged(); } public List<String> getPidList() { return pidList; }}bean——AddCartBean
package com.example.goodscar.bean;public class AddCartBean { /** * msg : 加购成功 * code : 0 */ private String msg; private String code; public String getMsg() { return msg; } public void setMsg(String msg) { this.msg = msg; } public String getCode() { return code; } public void setCode(String code) { this.code = code; }}bean——GoosBean
public static final String url = "http://result.eolinker.com/iYXEPGn4e9c6dafce6e5cdd23287d2bb136ee7e9194d3e9?uri=evaluation";
eventbusevent——MessageEvent
package com.example.goodscar.eventbusevent;public class MessageEvent { private boolean checked; public boolean isChecked() { return checked; } public void setChecked(boolean checked) { this.checked = checked; }}eventbusevent——PriceAndCountEvent
package com.example.goodscar.eventbusevent;public class PriceAndCountEvent { private int price; private int count; public int getPrice() { return price; } public void setPrice(int price) { this.price = price; } public int getCount() { return count; } public void setCount(int count) { this.count = count; }}mode——AddCartModel
package com.example.goodscar.mode;import android.os.Handler;import android.os.Looper;import com.example.goodscar.bean.AddCartBean;import com.example.goodscar.net.Api;import com.example.goodscar.net.HttpUtils;import com.example.goodscar.net.OnNetListener;import com.google.gson.Gson;import java.io.IOException;import okhttp3.Call;import okhttp3.Callback;import okhttp3.Response;public class AddCartModel { private Handler handler = new Handler(Looper.getMainLooper()); public void addCart(String uid, String pid, final OnNetListener<AddCartBean> onNetListener) { String url = String.format(Api.ADD_CART, uid, pid); HttpUtils.getHttpUtils().doGet(url, new Callback() { @Override public void onFailure(Call call, IOException e) { } @Override public void onResponse(Call call, Response response) throws IOException { String string = response.body().string(); final AddCartBean addCartBean = new Gson().fromJson(string, AddCartBean.class); handler.post(new Runnable() { @Override public void run() { onNetListener.onSuccess(addCartBean); } }); } }); }}mode——IMainModel
package com.example.goodscar.mode;import com.example.goodscar.bean.GoosBean;import com.example.goodscar.net.OnNetListener;public interface IMainModel { public void getGoods(OnNetListener<GoosBean> onNetListener);}mode——MainModel
package com.example.goodscar.mode;import android.os.Handler;import android.os.Looper;import com.example.goodscar.bean.GoosBean;import com.example.goodscar.net.Api;import com.example.goodscar.net.HttpUtils;import com.example.goodscar.net.OnNetListener;import com.google.gson.Gson;import java.io.IOException;import okhttp3.Call;import okhttp3.Callback;import okhttp3.Response;public class MainModel implements IMainModel { private Handler handler = new Handler(Looper.getMainLooper()); public void getGoods(final OnNetListener<GoosBean> onNetListener) { HttpUtils.getHttpUtils().doGet(Api.url, new Callback() { @Override public void onFailure(Call call, IOException e) { } @Override public void onResponse(Call call, Response response) throws IOException { String string = response.body().string(); final GoosBean goosBean = new Gson().fromJson(string, GoosBean.class); handler.post(new Runnable() { @Override public void run() { onNetListener.onSuccess(goosBean); } }); } }); }}net——Api
package com.example.goodscar.net;public interface Api { public static final String url = "http://result.eolinker.com/iYXEPGn4e9c6dafce6e5cdd23287d2bb136ee7e9194d3e9?uri=evaluation"; public static final String ADD_CART = "http://120.27.23.105/product/addCart?uid=%s&pid=%s"; public static final String SEARCH_CART = "http://120.27.23.105/product/getCarts?uid=%s";}net——HttpUtils
package com.example.goodscar.net;import okhttp3.Callback;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.logging.HttpLoggingInterceptor;public class HttpUtils { private static volatile HttpUtils httpUtils; private final OkHttpClient client; private HttpUtils() { HttpLoggingInterceptor logging = new HttpLoggingInterceptor(); logging.setLevel(HttpLoggingInterceptor.Level.BODY); client = new OkHttpClient.Builder() .addInterceptor(logging) .build(); } public static HttpUtils getHttpUtils() { if (httpUtils == null) { synchronized (HttpUtils.class) { if (httpUtils == null) { httpUtils = new HttpUtils(); } } } return httpUtils; } /** * GET请求 * * @param url * @param callback */ public void doGet(String url, Callback callback) { Request request = new Request.Builder().url(url).build(); client.newCall(request).enqueue(callback); }}net——OnNetListener
public interface OnNetListener<T> { public void onSuccess(T t); public void onFailure(Exception e);}presenter——AddCartPresenter
package com.example.goodscar.presenter;import com.example.goodscar.MainActivity;import com.example.goodscar.bean.AddCartBean;import com.example.goodscar.mode.AddCartModel;import com.example.goodscar.net.OnNetListener;public class AddCartPresenter { private AddCartModel addCartModel; private MainActivity otherActivity; public AddCartPresenter(MainActivity ac) { this.otherActivity = ac; this.addCartModel = new AddCartModel(); } public void addCart(String uid, String pid) { addCartModel.addCart(uid, pid, new OnNetListener<AddCartBean>() { @Override public void onSuccess(AddCartBean addCartBean) { otherActivity.show(addCartBean.getMsg()); } @Override public void onFailure(Exception e) { } }); }}presenter——MainPresenter
package com.example.goodscar.presenter;import com.example.goodscar.bean.GoosBean;import com.example.goodscar.mode.IMainModel;import com.example.goodscar.mode.MainModel;import com.example.goodscar.net.OnNetListener;import com.example.goodscar.view.IMainActivity;import java.util.ArrayList;import java.util.List;public class MainPresenter { private final IMainModel imainModel; private final IMainActivity iMainActivity; public MainPresenter(IMainActivity iMainActivity) { this.iMainActivity = iMainActivity; imainModel = new MainModel(); } public void getGoods2() { imainModel.getGoods(new OnNetListener<GoosBean>() { @Override public void onSuccess(GoosBean goosBean) { List<GoosBean.DataBean.DatasBean> list = new ArrayList<GoosBean.DataBean.DatasBean>(); List<GoosBean.DataBean> data = goosBean.getData(); for (int i = 0; i < data.size(); i++) { List<GoosBean.DataBean.DatasBean> datas = data.get(i).getDatas(); list.addAll(datas); } iMainActivity.showList(list); } @Override public void onFailure(Exception e) { } }); } public void getGoods() { imainModel.getGoods(new OnNetListener<GoosBean>() { @Override public void onSuccess(GoosBean goosBean) { //List<GoosBean.DataBean> groupList, List<List<GoosBean.DataBean.DatasBean>> childList List<GoosBean.DataBean> dataBean = goosBean.getData(); List<List<GoosBean.DataBean.DatasBean>> childList = new ArrayList<List<GoosBean.DataBean.DatasBean>>(); for (int i = 0; i < dataBean.size(); i++) { List<GoosBean.DataBean.DatasBean> datas = dataBean.get(i).getDatas(); childList.add(datas); } iMainActivity.showList(dataBean, childList); } @Override public void onFailure(Exception e) { } }); }}view——IMainActivity
package com.example.goodscar.view;import com.example.goodscar.bean.GoosBean;import java.util.List;public interface IMainActivity { public void showList(List<GoosBean.DataBean> groupList, List<List<GoosBean.DataBean.DatasBean>> childList); public void showList(List<GoosBean.DataBean.DatasBean> list);}MainActivity
package com.example.goodscar;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;import android.widget.Button;import android.widget.CheckBox;import android.widget.TextView;import android.widget.Toast;import com.example.goodscar.adapter.RvAdapter;import com.example.goodscar.bean.GoosBean;import com.example.goodscar.eventbusevent.MessageEvent;import com.example.goodscar.eventbusevent.PriceAndCountEvent;import com.example.goodscar.net.Api;import com.example.goodscar.net.HttpUtils;import com.example.goodscar.presenter.AddCartPresenter;import com.example.goodscar.presenter.MainPresenter;import com.example.goodscar.view.IMainActivity;import org.greenrobot.eventbus.EventBus;import org.greenrobot.eventbus.Subscribe;import java.io.IOException;import java.util.List;import okhttp3.Call;import okhttp3.Callback;import okhttp3.Response;public class MainActivity extends AppCompatActivity implements IMainActivity, View.OnClickListener { private RecyclerView mRv; private CheckBox mCheckbox2; /** * 0 */ private TextView mTvPrice; /** * 结算(0) */ private TextView mTvNum; private MainPresenter mainPresenter; private AddCartPresenter addCartPresenter; private RvAdapter myAdapter; /** * 查询购物车 */ private Button mBtSearch; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_other); EventBus.getDefault().register(this); mainPresenter = new MainPresenter(this); addCartPresenter = new AddCartPresenter(this); initView(); mRv.setLayoutManager(new LinearLayoutManager(this)); //先请求接口数据 mainPresenter.getGoods2(); mCheckbox2.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { myAdapter.allSelect(mCheckbox2.isChecked()); } }); } @Override protected void onDestroy() { super.onDestroy(); EventBus.getDefault().unregister(this); } @Subscribe public void onMessageEvent(MessageEvent event) { mCheckbox2.setChecked(event.isChecked()); } @Subscribe public void onMessageEvent(PriceAndCountEvent event) { mTvNum.setText("加入购物车(" + event.getCount() + ")"); mTvPrice.setText(event.getPrice() + ""); } private void initView() { mRv = (RecyclerView) findViewById(R.id.rv); mCheckbox2 = (CheckBox) findViewById(R.id.checkbox2); mTvPrice = (TextView) findViewById(R.id.tv_price); mTvNum = (TextView) findViewById(R.id.tv_num); mTvNum.setOnClickListener(this); mBtSearch = (Button) findViewById(R.id.bt_search); mBtSearch.setOnClickListener(this); } //是给MainActivity用的方法，此处不必管它 @Override public void showList(List<GoosBean.DataBean> groupList, List<List<GoosBean.DataBean.DatasBean>> childList) { } @Override public void showList(List<GoosBean.DataBean.DatasBean> list) { myAdapter = new RvAdapter(this, list); mRv.setAdapter(myAdapter); } @Override public void onClick(View v) { switch (v.getId()) { default: break; case R.id.tv_num: //加入购物车 //获取集合里的pid if (myAdapter != null) { List<String> pidList = myAdapter.getPidList(); for (int i = 0; i < pidList.size(); i++) { addCartPresenter.addCart("71", pidList.get(i)); } } break; case R.id.bt_search: String url = String.format(Api.SEARCH_CART, "71"); HttpUtils.getHttpUtils().doGet(url, new Callback() { @Override public void onFailure(Call call, IOException e) { } @Override public void onResponse(Call call, Response response) throws IOException { String string = response.body().string(); } }); break; } } public void show(String msg) { Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show(); }}MyView
package com.example.goodscar;import android.content.Context;import android.support.annotation.Nullable;import android.util.AttributeSet;import android.view.LayoutInflater;import android.view.View;import android.widget.ImageView;import android.widget.LinearLayout;import android.widget.TextView;public class MyView extends LinearLayout { private ImageView iv_add; private ImageView iv_del; private TextView tv_num; public MyView(Context context) { this(context, null); } public MyView(Context context, @Nullable AttributeSet attrs) { super(context, attrs); View view = LayoutInflater.from(context).inflate(R.layout.myview, this); iv_add = findViewById(R.id.iv_add); iv_del = findViewById(R.id.iv_del); tv_num = findViewById(R.id.tv_num); } public void setAddClickListener(OnClickListener onClickListener) { iv_add.setOnClickListener(onClickListener); } public void setDelClickListener(OnClickListener onClickListener) { iv_del.setOnClickListener(onClickListener); } public void setNum(String num) { tv_num.setText(num); } public int getNum() { String num = tv_num.getText().toString(); return Integer.parseInt(num); }}activity_main.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:layout_width="match_parent" android:layout_height="40dp" android:background="#990000ff" android:gravity="center" android:text="购物车" android:textColor="#ff3660" android:textSize="25sp" /> <ExpandableListView android:id="@+id/elv" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="50dp" android:layout_alignParentBottom="true" android:background="@android:color/white" android:gravity="center_vertical"> <CheckBox android:id="@+id/checkbox2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:focusable="false" /> <TextView android:layout_width="wrap_content" android:layout_height="50dp" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:layout_toRightOf="@+id/checkbox2" android:gravity="center_vertical" android:text="全选" android:textSize="20sp" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:text="合计 ：" /> <TextView android:id="@+id/tv_price" android:layout_width="wrap_content" android:layout_height="50dp" android:layout_marginLeft="10dp" android:paddingRight="10dp" android:text="0" android:textColor="@android:color/holo_red_light" /> <TextView android:id="@+id/tv_num" android:layout_width="wrap_content" android:layout_height="50dp" android:background="@android:color/holo_red_dark" android:gravity="center" android:padding="10dp" android:text="结算(0)" android:textColor="@android:color/white" /> </LinearLayout> </RelativeLayout></LinearLayout>
activity_other.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"> <TextView android:layout_width="match_parent" android:layout_height="40dp" android:background="#990000ff" android:gravity="center" android:text="购物车" android:textColor="#ff3660" android:textSize="25sp" /> <android.support.v7.widget.RecyclerView android:id="@+id/rv" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="1" /> <RelativeLayout android:layout_width="match_parent" android:layout_height="50dp" android:layout_alignParentBottom="true" android:background="@android:color/white" android:gravity="center_vertical"> <CheckBox android:id="@+id/checkbox2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:focusable="false" /> <Button android:id="@+id/bt_search" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="查询购物车" /> <TextView android:layout_width="wrap_content" android:layout_height="50dp" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:layout_toRightOf="@+id/checkbox2" android:gravity="center_vertical" android:text="全选" android:textSize="20sp" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:text="合计 ：" /> <TextView android:id="@+id/tv_price" android:layout_width="wrap_content" android:layout_height="50dp" android:layout_marginLeft="10dp" android:paddingRight="10dp" android:text="0" android:textColor="@android:color/holo_red_light" /> <TextView android:id="@+id/tv_num" android:layout_width="wrap_content" android:layout_height="50dp" android:background="@android:color/holo_red_dark" android:gravity="center" android:padding="10dp" android:text="加入购物车(0)" android:textColor="@android:color/white" /> </LinearLayout> </RelativeLayout></LinearLayout>
child.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@android:color/darker_gray" android:gravity="center_vertical" android:orientation="horizontal"> <CheckBox android:id="@+id/cb_child" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginBottom="30dp" android:layout_marginLeft="40dp" android:layout_marginTop="30dp" android:focusable="false" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:orientation="vertical"> <TextView android:id="@+id/tv_tel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="20dp" android:text="iphone6" /> <TextView android:id="@+id/tv_content" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="20dp" android:text="什么手机" /> <TextView android:id="@+id/tv_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="20dp" android:text="2016-12-10" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="1" android:orientation="vertical"> <TextView android:id="@+id/tv_pri" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="¥3000.00" /> <com.example.goodscar.MyView android:id="@+id/mv" android:layout_width="wrap_content" android:layout_height="wrap_content"> </com.example.goodscar.MyView> </LinearLayout> <TextView android:id="@+id/tv_del" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="删除" /></LinearLayout>
myview.xml
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center_vertical" android:orientation="horizontal"> <ImageView android:id="@+id/iv_del" android:layout_width="20dp" android:layout_height="20dp" android:src="@drawable/shopcart_minus_grey" /> <TextView android:id="@+id/tv_num" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="5dp" android:background="@drawable/shopcart_add_btn" android:paddingBottom="2dp" android:paddingLeft="20dp" android:paddingRight="20dp" android:paddingTop="2dp" android:text="1" /> <ImageView android:id="@+id/iv_add" android:layout_width="20dp" android:layout_height="20dp" android:layout_marginLeft="5dp" android:src="@drawable/shopcart_add_red" /></LinearLayout>
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