自定义view加减器

package com.bawei.moni.zview;

import android.content.Context;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.bawei.moni.R;
import com.bawei.moni.adapter.GoodAadpter;
import com.bawei.moni.bean.ShouBean;

import java.util.List;

/*Time:2019/4/5
 *Author:zhaozhiwei
 *Description:
 */public class SubAddButton extends LinearLayout implements View.OnClickListener {
    private EditText ed;
    List<ShouBean.DataBean.ListBean> list;
    private GoodAadpter goodAadpter;
    private int i;
    private int numbre;

    public SubAddButton(Context context) {
        super(context);
    }

    public SubAddButton(Context context, AttributeSet attrs) {
        super(context, attrs);
        initView();
    }

    private void initView() {
        View view = LayoutInflater.from(getContext()).inflate(R.layout.layout_sub_add, null, false);
        addView(view);
        view.findViewById(R.id.jia).setOnClickListener(this);
        view.findViewById(R.id.jian).setOnClickListener(this);
        ed = view.findViewById(R.id.ed1);
    }

    public SubAddButton(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.jia:
                Log.e("AA","减减");
                Toast.makeText(getContext(), "加", Toast.LENGTH_SHORT).show();
                 numbre++;
                 ed.setText(numbre+"");
                 list.get(i).setNum(numbre);
                 if (numChangedListener!=null){
                     numChangedListener.onResult();
                 }
                 goodAadpter.notifyDataSetChanged();
                 break;
            case R.id.jian:
                Toast.makeText(getContext(), "减", Toast.LENGTH_SHORT).show();
                numbre--;
                if (numbre<1){
                    Toast.makeText(getContext(), "不能再减了", Toast.LENGTH_SHORT).show();
                    numbre=1;
                }else{
                    ed.setText(numbre+"");
                    list.get(i).setNum(numbre);
                    numChangedListener.onResult();
                    goodAadpter.notifyDataSetChanged();
                }
                break;
        }
    }

    public void setData(GoodAadpter goodAadpter, List<ShouBean.DataBean.ListBean> list, int i) {
        this.goodAadpter = goodAadpter;
        this.list = list;
        this.i = i;
        numbre = list.get(i).getNum();
        ed.setText(list.get(i).getNum() + "");
    }

    public OnNumChangedListener numChangedListener;

    public interface OnNumChangedListener {
        void onResult();
    }

    public void setNumChangedListener(OnNumChangedListener numChangedListener) {
        this.numChangedListener = numChangedListener;
    }

}

布局

<?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">

    <Button
        android:id="@+id/jian"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:text="-" />

    <EditText
        android:id="@+id/ed1"
        android:layout_width="60dp"
        android:layout_height="wrap_content" />

    <Button
        android:id="@+id/jia"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:text="+" />


</LinearLayout>