一级购物车
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依赖
compile 'com.squareup.okhttp3:okhttp:3.9.0'compile 'com.google.code.gson:gson:2.8.2'compile 'com.android.support:recyclerview-v7:26.0.0-alpha1'compile 'com.github.bumptech.glide:glide:3.7.0'
权限
<uses-permission android:name="android.permission.INTERNET"/>
activity_main
<?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="match_parent" android:orientation="vertical"> <!--头布局--> <LinearLayout android:id="@+id/top_bar" android:layout_width="match_parent" android:layout_height="48dp" android:background="#f7f7f7" android:orientation="vertical" > <RelativeLayout android:layout_width="match_parent" android:layout_height="48dp" android:background="@android:color/transparent" android:orientation="vertical" > <ImageView android:id="@+id/back" android:layout_width="48dp" android:layout_height="48dp" android:layout_alignParentLeft="true" android:layout_gravity="center_vertical" android:padding="12dp" android:src="@drawable/back" /> <TextView android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center" android:minHeight="48dp" android:text="购物车" android:textColor="#1a1a1a" android:textSize="16sp" /> <TextView android:id="@+id/edit" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_marginRight="40dp" android:gravity="center" android:minHeight="48dp" android:text="编辑" android:textColor="#1a1a1a" android:textSize="14sp" /> </RelativeLayout> </LinearLayout> <ListView android:id="@+id/listView" android:layout_width="match_parent" android:layout_height="0dp" android:layout_weight="1" android:childIndicator="@null" android:groupIndicator="@null" > </ListView> <LinearLayout android:layout_width="match_parent" android:layout_height="50dp" android:gravity="center_vertical" android:orientation="horizontal" > <CheckBox android:id="@+id/all_chekbox" android:layout_marginLeft="20dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="全选"/> <LinearLayout android:id="@+id/ll_info" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="4" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:layout_marginRight="20dp" android:layout_weight="1" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="right" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="5dp" android:text="合计:" android:textSize="18sp" android:textStyle="bold" /> <TextView android:id="@+id/total_price" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="￥0.00" android:textColor="#f23232" android:textSize="16sp" android:textStyle="bold" /> </LinearLayout> <TextView android:id="@+id/total_number" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="共有商品:0件" android:gravity="right" android:textSize="16sp" android:textStyle="bold" /> </LinearLayout> <TextView android:id="@+id/tv_go_to_pay" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_weight="3" android:background="#fd7a05" android:clickable="true" android:gravity="center" android:text="结算" android:textColor="#FAFAFA" /> </LinearLayout> </LinearLayout></LinearLayout>ex_child_item@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@<?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" android:layout_width="match_parent" android:layout_height="230dp" android:orientation="horizontal"> <CheckBox android:id="@+id/child_checkbox" android:layout_marginTop="50dp" android:layout_marginLeft="20dp" android:layout_marginBottom="50dp" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <RelativeLayout android:layout_marginLeft="20dp" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:id="@+id/shop_title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" android:layout_marginLeft="17dp" android:layout_marginStart="17dp" android:text="TextView" android:layout_alignParentTop="true" /> <ImageView android:id="@+id/shop_img" android:layout_width="90dp" android:layout_height="90dp" android:layout_marginTop="30dp" app:srcCompat="@mipmap/ic_launcher" android:layout_below="@+id/shop_title" android:layout_alignParentLeft="true" android:layout_alignParentStart="true" /> <TextView android:id="@+id/shop_price" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignTop="@+id/shop_img" android:layout_centerHorizontal="true" android:layout_marginTop="10dp" android:text="￥20" android:textColor="#f23232"/> <com.bwei.listview.myview.AddDeleteView android:id="@+id/adv" android:layout_width="160dp" android:layout_height="30dp" android:layout_below="@+id/shop_price" android:layout_marginTop="30dp" android:layout_marginLeft="140dp" app:left_text="-" app:right_text="+" app:middle_text="1" android:focusable="false" > </com.bwei.listview.myview.AddDeleteView> <Button android:id="@+id/shop_delete" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentEnd="true" android:layout_alignParentRight="true" android:layout_centerVertical="true" android:visibility="invisible" android:text="删除" /> </RelativeLayout></LinearLayout>_____________________________________________________________________________________________自定义view layout_add_delete<?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="match_parent" android:orientation="horizontal" android:weightSum="1"> <TextView android:id="@+id/txt_delete" android:layout_width="30dp" android:layout_height="30dp" android:text="-" android:gravity="center" android:background="#8b948b"/> <EditText android:id="@+id/et_number" android:layout_marginTop="2dp" android:layout_width="50dp" android:layout_height="30dp" android:background="@drawable/edit" android:layout_weight="0.00" android:gravity="center" android:text="1"/> <TextView android:id="@+id/txt_add" android:layout_width="30dp" android:layout_height="30dp" android:text="+" android:gravity="center" android:background="#8b948b"/></LinearLayout>values下的attrs.xml<?xml version="1.0" encoding="utf-8"?><resources> <declare-styleable name="AddDeleteViewStyle"> <attr name="left_text" format="string"></attr> <attr name="right_text" format="string"></attr> <attr name="middle_text" format="string"></attr> <attr name="left_text_color" format="color"></attr> </declare-styleable></resources>
drawable下的edit.xml<?xml version="1.0" encoding="utf-8"?><shape xmlns:android="http://schemas.android.com/apk/res/android"> <solid android:color="#FFFFFF" /> <!--<corners android:radius="3dip"/>--> <stroke android:width="1dip" android:color="#BDC7D8" /></shape>myview包AddDeleteView类————————————————————————————————————————————————————————————————————————————————————————————————import android.content.Context;import android.content.res.TypedArray;import android.graphics.Color;import android.util.AttributeSet;import android.view.View;import android.widget.EditText;import android.widget.LinearLayout;import android.widget.TextView;import com.bwei.listview.R;/** * 作者 * on 2017/11/18 10:49 */public class AddDeleteView extends LinearLayout { private OnAddDelClickListener listener; private EditText etNumber; //对外提供一个点击的回调接口 public interface OnAddDelClickListener{ void onAddClick(View v); void onDelClick(View v); } public void setOnAddDelClickListener(OnAddDelClickListener listener){ if(listener!=null){ this.listener=listener; } } public AddDeleteView(Context context) { this(context,null); } public AddDeleteView(Context context, AttributeSet attrs) { this(context, attrs,0); } public AddDeleteView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); initView(context, attrs, defStyleAttr); } private void initView(Context context, AttributeSet attrs, int defStyleAttr) { View.inflate(context, R.layout.layout_add_delete,this); //获取控件 TextView txtDelete=findViewById(R.id.txt_delete); TextView txtAdd=findViewById(R.id.txt_add); etNumber = findViewById(R.id.et_number); TypedArray typedArray = context.obtainStyledAttributes(attrs, R.styleable.AddDeleteViewStyle); String leftText = typedArray.getString(R.styleable.AddDeleteViewStyle_left_text); String rightText = typedArray.getString(R.styleable.AddDeleteViewStyle_right_text); String middleText = typedArray.getString(R.styleable.AddDeleteViewStyle_middle_text); int color = typedArray.getColor(R.styleable.AddDeleteViewStyle_left_text_color, Color.BLACK); txtDelete.setText(leftText); txtAdd.setText(rightText); etNumber.setText(middleText); txtDelete.setTextColor(color); //回收 typedArray.recycle(); txtDelete.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { listener.onDelClick(view); } }); txtAdd.setOnClickListener(new OnClickListener() { @Override public void onClick(View view) { listener.onAddClick(view); } }); } //对外提供一个修改数字的方法 public void setNumber(int number){ if(number>0){ etNumber.setText(number+""); } } //对外提供一个获取当前数字的方法 public int getNumber(){ String string = etNumber.getText().toString(); int i = Integer.parseInt(string); return i; }}
model包
HttpUtils类import android.os.Handler;import android.util.Log;import com.google.gson.Gson;import java.io.IOException;import java.util.Map;import okhttp3.Call;import okhttp3.Callback;import okhttp3.FormBody;import okhttp3.OkHttpClient;import okhttp3.Request;import okhttp3.Response;/** * Created by 壹颗大金星 on 2017/11/9. */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<String,String> map, final CallBack callBack, final Class c,String tag){ //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<String,String> 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().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(); Log.e("TAG",result.toString()); //拿到数据解析 final Object o = new Gson().fromJson(result, c); Log.i("hhh", o+""); //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("hh",o); } }); } }); } //post请求 public void post(String url, Map<String,String> map, final CallBack callBack, final Class c,String tag){ //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<String,String> 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("hh",o); } }); } }); }}CallBack接口Iv接口public interface CallBack { void onSuccess(String tag,Object o); void onFailed(Exception e);}import com.bwei.listview.bean.GoodsBean;import java.util.ArrayList;import java.util.List;/** * Created by HQ on 2017/11/14. */public interface Iv { void onSuccess(List<GoodsBean> list); void onFiled( Exception e);}*********************************************************************
bean包
1.最外层的bean类
2.GoodsBean 类public class GoodsBean { private String childTitle; private boolean checkchild; private String img; private double price; private int num; private boolean btn; public GoodsBean(String childTitle, boolean checkchild, String img, double price, int num, boolean btn) { this.childTitle = childTitle; this.checkchild = checkchild; this.img = img; this.price = price; this.num = num; this.btn = btn; } public String getChildTitle() { return childTitle; } public void setChildTitle(String childTitle) { this.childTitle = childTitle; } public boolean isCheckchild() { return checkchild; } public void setCheckchild(boolean checkchild) { this.checkchild = checkchild; } public String getImg() { return img; } public void setImg(String img) { this.img = img; } public double getPrice() { return price; } public void setPrice(double price) { this.price = price; } public int getNum() { return num; } public void setNum(int num) { this.num = num; } public boolean isBtn() { return btn; } public void setBtn(boolean btn) { this.btn = btn; } @Override public String toString() { return "GoodsChilde{" + "childTitle='" + childTitle + '\'' + ", checkchild=" + checkchild + ", img='" + img + '\'' + ", price=" + price + ", num=" + num + ", btn=" + btn + '}'; }}￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥￥import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.CheckBox;import android.widget.ListView;import android.widget.TextView;import com.bwei.listview.adapter.GoodsAdapter;import com.bwei.listview.bean.GoodsBean;import com.bwei.listview.model.Iv;import com.bwei.listview.presenter.Presenter;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity implements Iv { private ListView listView; public CheckBox all_checKbox; private TextView total_price; private TextView total_number; private TextView pay; private TextView edit; List<GoodsBean> list = new ArrayList<GoodsBean>(); private Presenter presenter; private GoodsAdapter adapter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); listView = (ListView) findViewById(R.id.listView); all_checKbox = (CheckBox) findViewById(R.id.all_chekbox); total_price = (TextView) findViewById(R.id.total_price); total_number = (TextView) findViewById(R.id.total_number); pay = (TextView) findViewById(R.id.tv_go_to_pay); edit = (TextView) findViewById(R.id.edit); presenter = new Presenter(MainActivity.this, this, list); presenter.Goods(); //全选按钮的点击事件 all_checKbox.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { //获取到全选按钮的状态 boolean checked = all_checKbox.isChecked(); for (GoodsBean i : list) { i.setCheckchild(checked); } //刷新适配器 adapter.notifyDataSetChanged(); //计算的方法 changesum(list); } }); } //计算的逻辑 public void changesum(List<GoodsBean> goodsbean) { double sum = 0; int count = 0; for (int i = 0; i < goodsbean.size(); i++) { boolean childCb1 = goodsbean.get(i).isCheckchild(); if (childCb1) { double price = goodsbean.get(i).getPrice(); int num = goodsbean.get(i).getNum(); sum += num * price; count += num; } } total_price.setText("¥:" + sum); total_number.setText("共计有"+count+"件商品"); } @Override public void onSuccess(List<GoodsBean> list) { adapter = new GoodsAdapter(this, list); listView.setAdapter(adapter); adapter.notifyDataSetChanged(); } @Override public void onFiled(Exception e) { }}
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P层import android.content.Context;import android.util.Log;import com.bwei.listview.MainActivity;import com.bwei.listview.bean.Bean;import com.bwei.listview.bean.GoodsBean;import com.bwei.listview.model.CallBack;import com.bwei.listview.model.HttpUtils;import com.bwei.listview.model.Iv;import java.util.HashMap;import java.util.List;/** * Created by HQ on 2017/11/21. */public class Presenter { private Context context; private Iv iv; private List<GoodsBean> list; public Presenter(Context context, Iv iv, List<GoodsBean> list) { this.context = context; this.iv = iv; this.list = list; } public void Goods() { HashMap<String, String> map = new HashMap<>(); HttpUtils.getInstance().post("http://120.27.23.105/product/getCarts?uid=100", map, new CallBack() { @Override public void onSuccess(String tag, Object o) { Bean bean = (Bean) o; List<Bean.DataBean> data = bean.getData(); for(int i=0;i<data.size();i++){ List<Bean.DataBean.ListBean> list1 = data.get(i).getList(); for(int j=0;j<list1.size();j++){ double price = list1.get(j).getBargainPrice(); String images = list1.get(j).getImages(); String title = list1.get(j).getTitle(); list.add(new GoodsBean(title,false,images,price,1,false)); } Log.e("hhh", list.toString()); } iv.onSuccess(list); } @Override public void onFailed(Exception e) { } },Bean.class,"hh"); } }
adapter包
import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.CheckBox;import android.widget.ImageView;import android.widget.TextView;import com.bumptech.glide.Glide;import com.bwei.listview.MainActivity;import com.bwei.listview.R;import com.bwei.listview.bean.GoodsBean;import com.bwei.listview.myview.AddDeleteView;import java.util.List;import static android.R.attr.checked;/** * Created by HQ on 2017/11/22. */public class GoodsAdapter extends BaseAdapter { private Context context; private List<GoodsBean> list; MainActivity con; private View view; public GoodsAdapter(Context context, List<GoodsBean> list) { this.context = context; this.list = list; con=(MainActivity)context; } @Override public int getCount() { return list.size(); } @Override public Object getItem(int i) { return list.get(i); } @Override public long getItemId(int i) { return i; } @Override public View getView(final int i, View view, ViewGroup viewGroup) { final ChildViewHolder holder; if(view==null){ holder =new ChildViewHolder(); view = view.inflate(context, R.layout.ex_child_item, null); holder.ch2=view.findViewById(R.id.child_checkbox);//子级的选择框 holder.title=view.findViewById(R.id.shop_title);//子级的标题 holder.img=view.findViewById(R.id.shop_img);//图片 holder.et_number=view.findViewById(R.id.et_number);//加减中间的数量 holder.price=view.findViewById(R.id.shop_price);//价格 holder.txt_delete=view.findViewById(R.id.txt_delete);//加减器的减 holder.txt_add=view.findViewById(R.id.txt_add);//加减器的加 holder.txt_delete.setText("-");//设置显示减号 holder.txt_add.setText("+");//设置显示加号 holder.jiajia=view.findViewById(R.id.adv);//设置显示加减器 holder.jiajia.setNumber(list.get(i).getNum());//自定义view修改数字的方法 holder.btn=view.findViewById(R.id.shop_delete);//删除的按钮 view.setTag(holder); }else{ holder=(ChildViewHolder)view.getTag(); } holder.jiajia.setOnAddDelClickListener(new AddDeleteView.OnAddDelClickListener() { @Override public void onAddClick(View v) { int number = holder.jiajia.getNumber(); number++; holder.jiajia.setNumber(number); list.get(i).setNum(number); con.changesum(list);//计算的方法 } @Override public void onDelClick(View v) { int number = holder.jiajia.getNumber(); number--; holder.jiajia.setNumber(number); list.get(i).setNum(number); con.changesum(list); } }); holder.ch2.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { boolean checked = holder.ch2.isChecked(); list.get(i).setCheckchild(checked); //获取到Activity MainActivity con=(MainActivity)context; for(int i=0;i<list.size();i++){ boolean checkchild = list.get(i).isCheckchild(); if(!checkchild){ con.all_checKbox.setChecked(false); break; }else{ con.all_checKbox.setChecked(true); } } con.changesum(list); } }); holder.ch2.setChecked(list.get(i).isCheckchild()); holder.title.setText(list.get(i).getChildTitle()); String img = list.get(i).getImg(); String[] split = img.split("\\|"); Glide.with(context).load(split[0]).into(holder.img); holder.price.setText(list.get(i).getPrice()+""); return view; } class ChildViewHolder { CheckBox ch2; TextView title; ImageView img; TextView price; TextView txt_delete; TextView et_number; TextView txt_add; AddDeleteView jiajia; Button btn; }}
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