Android商城购物车页面实现

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我是靠谱客的博主清爽硬币，最近开发中收集的这篇文章主要介绍Android商城购物车页面实现，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

公司有个项目需要做购物车功能，于是实现了一下，另加了个浮动title ，侧滑删除，示例图片如下

//侧滑删除
compile 'com.github.anzaizai:EasySwipeMenuLayout:1.1.2'

实现方式 adapter用的是封装的

CommonAdapter

代码如下

package com.loocan.shpping.viewholder;

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

import java.util.List;

/**
 * adapter基类
 *
 * @param <T>
 */
public abstract class CommonAdapter<T> extends BaseAdapter {
    protected Context mContext;
    protected List<T> mDatas;
    protected LayoutInflater mInflater;
    private int layoutId;
    private int displayCount;

    public CommonAdapter(Context context, List<T> datas) {
        this.mContext = context;
        this.mDatas = datas;
        mInflater = LayoutInflater.from(context);
    }
    public CommonAdapter(Context context, List<T> datas, int layoutId) {
        this.mContext = context;
        this.mDatas = datas;
        this.layoutId = layoutId;
        mInflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {
        if (displayCount != 0) {
            return this.displayCount;
        }
        return mDatas.size();
    }

    public void setDisplayCount(int displayCount) {
        this.displayCount = displayCount;
    }

    @Override
    public T getItem(int position) {
        return mDatas.get(position);
    }

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder = ViewHolder.get(mContext, convertView, parent,
                layoutId, position);
        convert(holder, getItem(position));
        return holder.getConvertView();
    }

    public List<T> getDatas() {
        return mDatas;
    }

    public void setDatas(List<T> datas) {
        mDatas = datas;
    }

    public abstract void convert(ViewHolder holder, T t);

}

package com.loocan.shpping.viewholder;

import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.text.util.Linkify;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.widget.Checkable;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RatingBar;
import android.widget.TextView;

/**
 * 以前的做法是这样子的
 * viewHolder = new ViewHolder();
 * convertView = layoutInflater.inflate(R.layout.people_list_item, null, false);
 * viewHolder.checkBox = (CheckBox)convertView.findViewById(R.id.checkBox);
 * viewHolder.name = (TextView)convertView.findViewById(R.id.name);
 * 缺点，如果我们换了一个Item，我们就需要在ViewHolder中从新添加对应空间的变量
 * 也就需要重写viewHolder,
 * 因此这里用了一个通用的方法，就是在viewHolder中用一个类似于map的键值来保存findViewById对象，
 * 这种比先前还有一个好处就是，不管多少条Item，Item中的每个控件只会被findViewById一次
 * 以前的方法，当前页面缓存的个数4个，然后内存中对每个控件都是对应4个，也就是findViewById4次，如果屏幕较大就会越来越多
 * 以后一个项目几十个Adapter一个ViewHolder直接hold住全场
 *
 * @ Author: qiyue (ustory)
 * @ Email: qiyuekoon@foxmail.com
 * @ Data:2016/3/6
 */
public class ViewHolder {
    private SparseArray<View> mViews;
    private int mPosition;
    private View mConvertView;
    private Context mContext;
    private int mLayoutId;

    public ViewHolder(Context context, ViewGroup parent, int layoutId,
                      int position) {
        mContext = context;
        mLayoutId = layoutId;
        this.mPosition = position;
        this.mViews = new SparseArray<View>();
        mConvertView = LayoutInflater.from(context).inflate(layoutId, parent,
                false);
        mConvertView.setTag(this);
    }

    public static ViewHolder get(Context context, View convertView,
                                 ViewGroup parent, int layoutId, int position) {
        if (convertView == null) {
            return new ViewHolder(context, parent, layoutId, position);
        } else {
            ViewHolder holder = (ViewHolder) convertView.getTag();
            holder.mPosition = position;
            return holder;
        }
    }

    public int getPosition() {
        return mPosition;
    }

    public int getLayoutId() {
        return mLayoutId;
    }

    /**
     * 通过viewId获取控件
     *
     * @param viewId
     * @return
     */
    public <T extends View> T getView(int viewId) {
        View view = mViews.get(viewId);
        if (view == null) {
            view = mConvertView.findViewById(viewId);
            mViews.put(viewId, view);
        }
        return (T) view;
    }

    public View getConvertView() {
        return mConvertView;
    }

    /**
     * 设置TextView的�??
     *
     * @param viewId
     * @param text
     * @return
     */
    public ViewHolder setText(int viewId, String text) {
        TextView tv = getView(viewId);
        tv.setText(text);
        return this;
    }

    public ViewHolder setImageResource(int viewId, int resId) {
        ImageView view = getView(viewId);
        view.setImageResource(resId);
        return this;
    }

    public ViewHolder setImageBitmap(int viewId, Bitmap bitmap) {
        ImageView view = getView(viewId);
        view.setImageBitmap(bitmap);
        return this;
    }

    public ViewHolder setImageDrawable(int viewId, Drawable drawable) {
        ImageView view = getView(viewId);
        view.setImageDrawable(drawable);
        return this;
    }

    public ViewHolder setBackgroundColor(int viewId, int color) {
        View view = getView(viewId);
        view.setBackgroundColor(color);
        return this;
    }

    public ViewHolder setBackgroundRes(int viewId, int backgroundRes) {
        View view = getView(viewId);
        view.setBackgroundResource(backgroundRes);
        return this;
    }

    public ViewHolder setTextColor(int viewId, int textColor) {
        TextView view = getView(viewId);
        view.setTextColor(textColor);
        return this;
    }

    public ViewHolder setTextColorRes(int viewId, int textColorRes) {
        TextView view = getView(viewId);
        view.setTextColor(mContext.getResources().getColor(textColorRes));
        return this;
    }

    @SuppressLint("NewApi")
    public ViewHolder setAlpha(int viewId, float value) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            getView(viewId).setAlpha(value);
        } else {
            // Pre-honeycomb hack to set Alpha value
            AlphaAnimation alpha = new AlphaAnimation(value, value);
            alpha.setDuration(0);
            alpha.setFillAfter(true);
            getView(viewId).startAnimation(alpha);
        }
        return this;
    }

    public ViewHolder setVisible(int viewId, boolean visible) {
        View view = getView(viewId);
        view.setVisibility(visible ? View.VISIBLE : View.GONE);
        return this;
    }

    public ViewHolder linkify(int viewId) {
        TextView view = getView(viewId);
        Linkify.addLinks(view, Linkify.ALL);
        return this;
    }

    public ViewHolder setTypeface(Typeface typeface, int... viewIds) {
        for (int viewId : viewIds) {
            TextView view = getView(viewId);
            view.setTypeface(typeface);
            view.setPaintFlags(view.getPaintFlags() | Paint.SUBPIXEL_TEXT_FLAG);
        }
        return this;
    }

    public ViewHolder setProgress(int viewId, int progress) {
        ProgressBar view = getView(viewId);
        view.setProgress(progress);
        return this;
    }

    public ViewHolder setProgress(int viewId, int progress, int max) {
        ProgressBar view = getView(viewId);
        view.setMax(max);
        view.setProgress(progress);
        return this;
    }

    public ViewHolder setMax(int viewId, int max) {
        ProgressBar view = getView(viewId);
        view.setMax(max);
        return this;
    }

    public ViewHolder setRating(int viewId, float rating) {
        RatingBar view = getView(viewId);
        view.setRating(rating);
        return this;
    }

    public ViewHolder setRating(int viewId, float rating, int max) {
        RatingBar view = getView(viewId);
        view.setMax(max);
        view.setRating(rating);
        return this;
    }

    public ViewHolder setTag(int viewId, Object tag) {
        View view = getView(viewId);
        view.setTag(tag);
        return this;
    }

    public ViewHolder setTag(int viewId, int key, Object tag) {
        View view = getView(viewId);
        view.setTag(key, tag);
        return this;
    }

    public ViewHolder setChecked(int viewId, boolean checked) {
        Checkable view = (Checkable) getView(viewId);
        view.setChecked(checked);
        return this;
    }

    /**
     * 关于事件
     */
    public ViewHolder setOnClickListener(int viewId,
                                         View.OnClickListener listener) {
        View view = getView(viewId);
        view.setOnClickListener(listener);
        return this;
    }

    public ViewHolder setOnTouchListener(int viewId,
                                         View.OnTouchListener listener) {
        View view = getView(viewId);
        view.setOnTouchListener(listener);
        return this;
    }

    public ViewHolder setOnLongClickListener(int viewId,
                                             View.OnLongClickListener listener) {
        View view = getView(viewId);
        view.setOnLongClickListener(listener);
        return this;
    }

}

Activity 代码如下

package com.loocan.shpping;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.CheckBox;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Random;

import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;

public class MainActivity extends AppCompatActivity implements CartAdapter.ItemClickListener {

    @BindView(R.id.tv_back)
    TextView mTvBack;
    @BindView(R.id.tv_title)
    TextView mTvTitle;
    @BindView(R.id.tv_right)
    TextView mTvRight;
    @BindView(R.id.rlt_base)
    RelativeLayout mRltBase;
    @BindView(R.id.listView)
    ListView mListView;
    @BindView(R.id.all_chekbox)
    CheckBox mAllChekbox;
    @BindView(R.id.tv_total_price)
    TextView mTvTotalPrice;
    @BindView(R.id.tv_go_to_pay)
    TextView mTvGoToPay;

    private double totalPrice = 0.00;
    private int totalCount = 0;
    private List<HashMap<String, String>> goodsList;

    private CartAdapter adapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);

        mTvTitle.setText("购物车");

        //模拟一些数据
        initDate();

        initView();
    }

    private void initDate() {
        goodsList = new ArrayList<>();
        for (int i = 0; i < 10; i++) {
            HashMap<String, String> map = new HashMap<>();
            map.put("id", "0");
            map.put("name", "购物车里的第" + (i + 1) + "件商品");
            map.put("type", (i + 20) + "码");
            map.put("price", (new Random().nextInt(100) % (100 - 29 + 29) + 29) + "");
            map.put("count", (new Random().nextInt(10) % (10 - 1 + 1) + 1) + "");
            goodsList.add(map);
        }
    }

    private void initView() {
        adapter = new CartAdapter(this, goodsList, R.layout.item_cehua);
        adapter.setOnItemClickListener(this);
        mListView.setAdapter(adapter);
        adapter.notifyDataSetChanged();
    }

    @OnClick({R.id.all_chekbox, R.id.tv_go_to_pay})
    public void onViewClicked(View view) {
        switch (view.getId()) {
            case R.id.all_chekbox:
                AllTheSelected(true);
                break;
            case R.id.tv_go_to_pay:
                if (totalCount <= 0) {
                    Toast.makeText(this, "请选择要付款的商品~", Toast.LENGTH_SHORT).show();
                    return;
                }
                Toast.makeText(this, "钱就是另一回事了~", Toast.LENGTH_SHORT).show();
                break;
        }
    }

    @Override
    public void ItemClickListener(View view, int position) {
        HashMap<String, String> hashMap = goodsList.get(position);
        if (((CheckBox) view).isChecked()) {
            hashMap.put("id", "1");
        } else {
            hashMap.put("id", "0");
        }
        goodsList.set(position, hashMap);
        AllTheSelected(false);
    }

    //删除
    @Override
    public void ItemDeleteClickListener(View view, int position) {
        goodsList.remove(position);
        AllTheSelected(false);
    }

    //增加
    @Override
    public void ItemAddClickListener(View view, int position) {
        //当低于目标值是  可以做删除操作
        HashMap<String, String> hashMap = goodsList.get(position);
        int currentCount = Integer.valueOf(hashMap.get("count"));
        if (currentCount + 1 > 15) {
            Toast.makeText(this, "亲，已达库存上限~", Toast.LENGTH_SHORT).show();
        } else {
            hashMap.put("count", String.valueOf(currentCount + 1));
            goodsList.set(position, hashMap);
        }
        AllTheSelected(false);
    }

    //减
    @Override
    public void ItemReduceClickListener(View view, int position) {
        HashMap<String, String> hashMap = goodsList.get(position);
        int currentCount = Integer.valueOf(hashMap.get("count"));
        if (currentCount - 1 < 1) {
            Toast.makeText(this, "受不了了，宝贝不能再减少了哦~", Toast.LENGTH_SHORT).show();
        } else {
            hashMap.put("count", String.valueOf(currentCount - 1));
            goodsList.set(position, hashMap);
        }
        AllTheSelected(false);
    }

    //控制价格展示
    private void priceContro() {
        totalCount = 0;
        totalPrice = 0.00;
        for (int i = 0; i < goodsList.size(); i++) {
            if (goodsList.get(i).get("id").equals("1")) {
                totalCount = totalCount + Integer.valueOf(goodsList.get(i).get("count"));
                double goodsPrice = Integer.valueOf(goodsList.get(i).get("count")) * Double.valueOf(goodsList.get(i).get("price"));
                totalPrice = totalPrice + goodsPrice;
            }
        }
        mTvTotalPrice.setText("￥ " + totalPrice);
        mTvGoToPay.setText("付款(" + totalCount + ")");
    }

    /**
     * 部分选取 做全选  全部选择做反选
     */
    private void AllTheSelected(Boolean aBoolean) {
        int number = 0;
        for (int j = 0; j < goodsList.size(); j++) {
            if (goodsList.get(j).get("id").equals("1")) {
                number++;
            }
        }
        if (aBoolean) {
            //全部选择  反选
            if (number == goodsList.size()) {
                for (int i = 0; i < goodsList.size(); i++) {
                    goodsList.get(i).put("id", "0");
                }
                mAllChekbox.setChecked(false);
                //全部未选
            } else if (number == 0) {
                for (int i = 0; i < goodsList.size(); i++) {
                    goodsList.get(i).put("id", "1");
                }
                mAllChekbox.setChecked(true);
                //部分选择
            } else {
                for (int i = 0; i < goodsList.size(); i++) {
                    goodsList.get(i).put("id", "1");
                }
                mAllChekbox.setChecked(true);
            }
        } else {
            if (number == goodsList.size()) {
                mAllChekbox.setChecked(true);
            } else {
                mAllChekbox.setChecked(false);
            }
        }

        adapter.notifyDataSetChanged();
        priceContro();

    }
}

adapter如下

package com.loocan.shpping;

import android.content.Context;
import android.view.View;

import com.guanaj.easyswipemenulibrary.EasySwipeMenuLayout;
import com.loocan.shpping.viewholder.CommonAdapter;
import com.loocan.shpping.viewholder.ViewHolder;

import java.util.HashMap;
import java.util.List;

/**
 * File descripition:
 *
 * @author lp
 * @date 2018/9/28
 */

public class CartAdapter extends CommonAdapter<HashMap<String, String>> {
    private ItemClickListener listener;

    public CartAdapter(Context context, List<HashMap<String, String>> datas, int layoutId) {
        super(context, datas, layoutId);
    }

    @Override
    public void convert(final ViewHolder holder, HashMap<String, String> map) {
        if (map.get("id").equals("0")) {
            holder.setChecked(R.id.check_box, false);
        } else {
            holder.setChecked(R.id.check_box, true);
        }
        holder.setText(R.id.tv_goods_name, map.get("name"));
        holder.setText(R.id.tv_num, map.get("count"));
        holder.setText(R.id.tv_type_size, map.get("type"));
        holder.setText(R.id.tv_goods_price, "￥ " + (Double.valueOf(map.get("price")) * Integer.valueOf(map.get("count"))));

        final EasySwipeMenuLayout easySwipeMenuLayout = holder.getView(R.id.action_bar);
        holder.setOnClickListener(R.id.check_box, new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                listener.ItemClickListener(v, holder.getPosition());
            }
        });
        //删除
        holder.setOnClickListener(R.id.right, new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //侧滑初始化
                easySwipeMenuLayout.resetStatus();
                listener.ItemDeleteClickListener(v, holder.getPosition());
            }
        });
        //减
        holder.setOnClickListener(R.id.tv_reduce, new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                listener.ItemReduceClickListener(v, holder.getPosition());
            }
        });
        //加
        holder.setOnClickListener(R.id.tv_add, new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                listener.ItemAddClickListener(v, holder.getPosition());
            }
        });
    }

    public void setOnItemClickListener(ItemClickListener listener) {
        this.listener = listener;
    }

    public interface ItemClickListener {
        void ItemClickListener(View view, int position);

        void ItemDeleteClickListener(View view, int position);

        void ItemAddClickListener(View view, int position);

        void ItemReduceClickListener(View view, int position);
    }
}

activity_main.xml

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

    <include layout="@layout/app_title" />

    <ListView
        android:id="@+id/listView"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:orientation="horizontal">

        <LinearLayout
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="2.5"
            android:gravity="center_vertical"
            android:orientation="horizontal">

            <CheckBox
                android:id="@+id/all_chekbox"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="4dp"
                android:button="@drawable/check_box_bg"
                android:checkMark="?android:attr/listChoiceIndicatorMultiple"
                android:gravity="center"
                android:minHeight="64dp"
                android:paddingLeft="10dp"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:visibility="visible" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="5dp"
                android:text="合计:"
                android:textSize="16sp"
                android:textStyle="bold" />

            <TextView
                android:id="@+id/tv_total_price"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="￥0.00"
                android:textColor="@color/colorBlack"
                android:textSize="16sp"
                android:textStyle="bold" />
        </LinearLayout>

        <TextView
            android:id="@+id/tv_go_to_pay"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="#E24146"
            android:clickable="true"
            android:gravity="center"
            android:text="付款(0)"
            android:textColor="#FAFAFA" />
    </LinearLayout>
</LinearLayout>

item_cehua.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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="wrap_content">

    <com.guanaj.easyswipemenulibrary.EasySwipeMenuLayout
        android:id="@+id/action_bar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:contentView="@+id/content"
        app:rightMenuView="@+id/right">

        <LinearLayout
            android:id="@+id/left"
            android:layout_width="100dp"
            android:layout_height="wrap_content"
            android:background="@android:color/holo_blue_dark"
            android:orientation="horizontal"
            android:padding="20dp">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="分享" />
        </LinearLayout>

        <LinearLayout
            android:id="@+id/content"
            android:layout_width="wrap_content"
            android:layout_height="114dp"
            android:background="#cccccc"
            android:orientation="vertical">

            <include layout="@layout/item_shopcart_product" />
        </LinearLayout>


        <RelativeLayout
            android:id="@+id/right"
            android:layout_width="60dp"
            android:layout_height="114dp"
            android:background="@android:color/holo_red_light"
            android:orientation="horizontal">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerInParent="true"
                android:text="删除"
                android:textColor="@color/colorBlack" />

        </RelativeLayout>
    </com.guanaj.easyswipemenulibrary.EasySwipeMenuLayout>

</RelativeLayout>

<?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:orientation="vertical">

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="#CCCCCC" />

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/colorF5F5F5"
        android:orientation="horizontal">

        <CheckBox
            android:id="@+id/check_box"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="10dp"
            android:layout_marginRight="4dp"
            android:button="@drawable/check_box_bg"
            android:checkMark="?android:attr/listChoiceIndicatorMultiple"
            android:gravity="center"
            android:minHeight="64dp"
            android:minWidth="32dp"
            android:textAppearance="?android:attr/textAppearanceLarge"
            android:visibility="visible" />

        <ImageView
            android:id="@+id/iv_adapter_list_pic"
            android:layout_width="85dp"
            android:layout_height="85dp"
            android:layout_marginBottom="15dp"
            android:layout_marginTop="13dp"
            android:scaleType="centerCrop"
            android:src="@mipmap/ic_launcher" />

        <RelativeLayout
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="13dp"
            android:layout_marginTop="10dp">

            <TextView
                android:id="@+id/tv_goods_name"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginRight="10dp"
                android:layout_marginTop="20dp"
                android:ellipsize="end"
                android:maxLines="2"
                android:textColor="@color/colorBlack"
                android:textSize="14sp" />

            <RelativeLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                android:layout_marginBottom="30dp"
                android:orientation="horizontal">

                <TextView
                    android:id="@+id/tv_goods_price"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_centerVertical="true"
                    android:singleLine="true"
                    android:textColor="@color/colorBlack"
                    android:textSize="14sp"
                    android:textStyle="bold" />

                <TextView
                    android:id="@+id/tv_type_size"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_centerVertical="true"
                    android:layout_marginLeft="10dp"
                    android:layout_toRightOf="@+id/tv_goods_price"
                    android:singleLine="true"
                    android:textColor="@color/colorBlack"
                    android:textSize="10sp" />

                <LinearLayout
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:layout_alignParentRight="true"
                    android:layout_centerVertical="true"
                    android:layout_marginRight="15dp"
                    android:orientation="horizontal">

                    <TextView
                        android:id="@+id/tv_reduce"
                        android:layout_width="25dp"
                        android:layout_height="25dp"
                        android:background="@drawable/text_angle_gray"
                        android:gravity="center"
                        android:text="一"
                        android:textColor="@color/colorBlack"
                        android:textSize="12sp" />

                    <TextView
                        android:id="@+id/tv_num"
                        android:layout_width="25dp"
                        android:layout_height="25dp"
                        android:background="@drawable/text_angle"
                        android:gravity="center"
                        android:singleLine="true"
                        android:text="1"
                        android:textColor="@color/colorBlack"
                        android:textSize="12sp" />

                    <TextView
                        android:id="@+id/tv_add"
                        android:layout_width="25dp"
                        android:layout_height="25dp"
                        android:background="@drawable/text_angle_right"
                        android:gravity="center"
                        android:text="+"
                        android:textColor="@color/colorBlack"
                        android:textSize="12sp" />
                </LinearLayout>
            </RelativeLayout>
        </RelativeLayout>
    </LinearLayout>

</LinearLayout>

demo链接地址：https://download.csdn.net/download/loocanp/10693697