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//mainActivity=========

package com.bwei.model.day20;import android.graphics.PointF;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.KeyEvent;import android.view.View;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.ExpandableListView;import android.widget.TextView;import com.bwei.model.day20.adapter.ExpandAdapter;import com.bwei.model.day20.bean.JsonBean;import com.bwei.model.day20.net.OkHttpUtil;import com.bwei.model.day20.unm.AddNumLayout;import com.google.gson.Gson;import java.util.List;public class MainActivity extends AppCompatActivity {    private ExpandableListView mExpandView;    private String urlPath = "http://120.27.23.105/product/getCarts?source=android&uid=99";    private ExpandAdapter mAdapter;    private List
   
     mData;    private CheckBox txtQaxa;    private TextView txtZong, txtJiesuan;    private JsonBean.DataBean.ListBean mChild;    private AddNumLayout onNumChangedListener;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //初始化控件        initView();        if (mAdapter == null){            //添加适配器            mAdapter = new ExpandAdapter(this);            mExpandView.setAdapter(mAdapter);        }        //初始化网络        initData();        //点击事件        initListener();    }    //点击方法    private void setCheckAll(int s){        int itemCount = mAdapter.getGroupCount();        for (int i = 0; i < itemCount; i++) {            JsonBean.DataBean item = (JsonBean.DataBean) mAdapter.getGroup(i);            List
    
      list = item.getList();            for (int j = 0; j < list.size(); j++) {                JsonBean.DataBean.ListBean listBean = list.get(j);                listBean.setSelected(s);            }        }        mAdapter.notifyDataSetChanged();        getToal();    }    private void initListener() {        txtQaxa.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {            @Override            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {                if (isChecked){                    setCheckAll(0);                }else {                    setCheckAll(1);                }            }        });        mExpandView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {            @Override            public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {                JsonBean.DataBean group = (JsonBean.DataBean) mAdapter.getGroup(groupPosition);                group.setIschecked(!group.isIschecked());                int c = 1;                if (group.isIschecked()){                    c = 0;                }                List
     
       list = group.getList();                for (int i = 0; i < list.size(); i++) {                    JsonBean.DataBean.ListBean listBean = list.get(i);                    listBean.setSelected(c);                }                mAdapter.notifyDataSetChanged();                getToal();                return true;            }        });        mExpandView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {            @Override            public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {                mChild = (JsonBean.DataBean.ListBean) mAdapter.getChild(groupPosition, childPosition);                boolean checked = mChild.isChecked();                if (checked){                    mChild.setSelected(0);                }else {                    mChild.setSelected(1);                }                mAdapter.notifyDataSetChanged();                getToal();                return true;            }        });        mAdapter.setOnNumChangedListener(new AddNumLayout.OnClickListener() {            @Override            public void onClick(View v) {                getToal();            }        });    }    private void initData() {        //连接okhttp        new OkHttpUtil().get(urlPath).setGetData(new OkHttpUtil.GetData() {            @Override            public void Feast(String s) {                Gson gson = new Gson();                JsonBean jsonBean = gson.fromJson(s, JsonBean.class);                mData = jsonBean.getData();                mAdapter.setList(mData);                //默认展开                for (int i = 0; i < mAdapter.getGroupCount(); i++) {                    mExpandView.expandGroup(i);                }            }        });    }    private void initView() {        mExpandView = (ExpandableListView) findViewById(R.id.expand_view);        txtQaxa = (CheckBox) findViewById(R.id.txt_qaxa);        txtZong = (TextView) findViewById(R.id.txt_zong);        txtJiesuan = (TextView) findViewById(R.id.txt_jisuan);    }    public void getToal() {        double total = 0;        int groupCount = mAdapter.getGroupCount();        for (int i = 0; i < groupCount; i++) {            JsonBean.DataBean item = (JsonBean.DataBean) mAdapter.getGroup(i);            List
      
        list = item.getList();            for (int j = 0; j < list.size(); j++) {                JsonBean.DataBean.ListBean listBean = list.get(j);                boolean checked = listBean.isChecked();                if (!checked){                    double price = listBean.getPrice();                    total += price * listBean.getNum();                }            }        }        txtZong.setText("合计："+ total);    }}
      
     
    
   

//适配器adapter

package com.bwei.model.day20.adapter;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseExpandableListAdapter;import android.widget.CheckBox;import android.widget.ImageView;import android.widget.TextView;import com.bumptech.glide.Glide;import com.bwei.model.day20.R;import com.bwei.model.day20.bean.JsonBean;import com.bwei.model.day20.unm.AddNumLayout;import java.util.ArrayList;import java.util.List;public class ExpandAdapter extends BaseExpandableListAdapter {    private Context mContext;    private List
   
     mList = new ArrayList
    
     ();    private View.OnClickListener mOnNumChangedListener;    public ExpandAdapter(Context context) {        mContext = context;    }    @Override    public int getGroupCount() {        return mList.size();    }    @Override    public int getChildrenCount(int groupPosition) {        return mList.get(groupPosition).getList().size();    }    @Override    public Object getGroup(int groupPosition) {        return mList.get(groupPosition);    }    @Override    public Object getChild(int groupPosition, int childPosition) {        return mList.get(groupPosition).getList().get(childPosition);    }    @Override    public long getGroupId(int groupPosition) {        return groupPosition;    }    @Override    public long getChildId(int groupPosition, int childPosition) {        return childPosition;    }    @Override    public boolean hasStableIds() {        return true;    }    @Override    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {        GroupViewHolder groupHolder;        if (convertView == null){            convertView = View.inflate(mContext, R.layout.adapter_group, null);            groupHolder = new GroupViewHolder();            groupHolder.groupBox = (CheckBox) convertView.findViewById(R.id.group_box);            groupHolder.txtName = (TextView) convertView.findViewById(R.id.txt_name);            convertView.setTag(groupHolder);        }else{            groupHolder = (GroupViewHolder) convertView.getTag();        }        groupHolder.txtName.setText(mList.get(groupPosition).getSellerName());        groupHolder.groupBox.setChecked(mList.get(groupPosition).isIschecked());        return convertView;    }    @Override    public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {        ChildViewHolder childHolder;        if (convertView == null){            convertView = View.inflate(mContext, R.layout.adapter_child, null);            childHolder = new ChildViewHolder();            childHolder.childBox = (CheckBox) convertView.findViewById(R.id.child_box);            childHolder.childImage = (ImageView) convertView.findViewById(R.id.child_image);            childHolder.txtTitle = (TextView) convertView.findViewById(R.id.txt_title);            childHolder.txtPrice = (TextView) convertView.findViewById(R.id.txt_price);            childHolder.sumAddsub = (AddNumLayout) convertView.findViewById(R.id.sum_addsub);            convertView.setTag(childHolder);        }else {            childHolder = (ChildViewHolder) convertView.getTag();        }        final JsonBean.DataBean.ListBean listBean = mList.get(groupPosition).getList().get(childPosition);        childHolder.childBox.setChecked(listBean.getSelected()==0);        childHolder.txtTitle.setText(listBean.getTitle());        childHolder.txtPrice.setText(listBean.getPrice()+ "");        childHolder.sumAddsub.setCurentcount(listBean.getNum());        Glide.with(mContext).load(listBean.getImages().split("\\|")[0]).into(childHolder.childImage);        return convertView;    }    public void setOnNumChangedListener(View.OnClickListener onNumChangedListener) {        mOnNumChangedListener = onNumChangedListener;    }    public void setList(List
     
       list) {        mList = list;    }    @Override    public boolean isChildSelectable(int groupPosition, int childPosition) {        return true;    }    class GroupViewHolder{        public CheckBox groupBox;        public TextView txtName;    }    class ChildViewHolder{        public CheckBox childBox;        public ImageView childImage;        public TextView txtPrice;        public TextView txtTitle;        public AddNumLayout sumAddsub;    }}
     
    
   

//父类xml

//子类xml

//自定义加减

public class ShoppingNumView extends LinearLayout {    private TextView sumSubtract, sumNmb, sumAdd;    //自动生成    public ShoppingNumView(Context context) {        this( context, null );    }    public ShoppingNumView(Context context, @Nullable AttributeSet attrs) {        this( context, attrs, -1 );    }    public ShoppingNumView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {        super( context, attrs, defStyleAttr );        initView( context );        initlisetener();    }    private void initView(Context context) {        View view = View.inflate( context, R.layout.shopping_adapter_view, this  );        sumSubtract = (TextView) view.findViewById( R.id.sum_subtract );        sumNmb = (TextView) view.findViewById( R.id.sum_nmb );        sumAdd = (TextView) view.findViewById( R.id.sum_add );        sumNmb.setText( "1" );    }    private void initlisetener() {        sumAdd.setOnClickListener( new OnClickListener() {            @Override            public void onClick(View v) {                add();            }        } );        sumSubtract.setOnClickListener( new OnClickListener() {            @Override            public void onClick(View v) {                Subtract();            }        } );    }    private void add() {        String shu = sumNmb.getText().toString();        int suan = Integer.parseInt( shu );        suan++;        setCurentcount( suan );    }    private void Subtract() {        String shu = sumNmb.getText().toString();        int suan = Integer.parseInt(shu);        if (suan > 1){            suan--;            setCurentcount(suan);        }else {            Toast.makeText(getContext(), "不能再少了", Toast.LENGTH_SHORT).show();        }    }    public int getCurentcount() {        return Integer.parseInt( sumNmb.getText().toString() );    }    public void setCurentcount(int num) {        sumNmb.setText( num+"" );        if (onNumChangedListener != null){            onNumChangedListener.onNumChange( this, num );        }    }    private OnNumChangedListener onNumChangedListener;    public void setOnNumChangedListener(OnNumChangedListener onNumChangedListener) {        this.onNumChangedListener = onNumChangedListener;    }    private interface OnNumChangedListener{        void onNumChange(View view, int curNum);    }}

//加减xml

//RecyclerView ========================================

// Activity

public class MainActivity extends AppCompatActivity implements CarView{    @BindView(R.id.tou)    TextView tou;    @BindView(R.id.car_recycler)    RecyclerView carRecycler;    @BindView(R.id.car_box)    CheckBox carBox;    @BindView(R.id.car_zong)    TextView carZong;    private List
   
     mList = new ArrayList<>();        private CarRecycleAdapter mCarAdapter;    private Object mTotal;    private List
    
      mChildlist;    private TextView carMai;        Handler mHandler = new Handler(){        @Override        public void handleMessage(Message msg) {            super.handleMessage( msg );            switch (msg.what){                case 1:                    setAdapter();                    break;            }        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate( savedInstanceState );        setContentView( R.layout.activity_main );        ButterKnife.bind( this );        carMai = (TextView) findViewById( R.id.car_mai );        //p层        CarPesenter pesenter = new CarPesenter( this );        pesenter.car("71");    }    public void setAdapter(){        //设置布局管理器        LinearLayoutManager layoutManager = new LinearLayoutManager(this);        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);        carRecycler.setLayoutManager(layoutManager);        //适配器        mCarAdapter = new CarRecycleAdapter( this, mList);        carRecycler.setAdapter(mCarAdapter);        //接收接口        mCarAdapter.setOnShopItemClick( new CarRecycleAdapter.OnShopItemClick() {            @Override            public void onCheckBoxClick(View view, int i) {                getTotal();                mCarAdapter.notifyDataSetChanged();            }            @Override            public void onSubViewClick(View view, int i) {                getTotal();                mCarAdapter.notifyDataSetChanged();            }            @Override            public void onAddViewClick(View view, int i) {                getTotal();                mCarAdapter.notifyDataSetChanged();            }        } );    }    //总价    public void getTotal() {        int num = 0;        double total = 0;        for (int i = 0; i < mList.size(); i++) {            List
     
       list = mList.get( i ).getList();            for (int j = 0; j < list.size(); j++) {                if (list.get( j ).getSelected()==1){                    num += list.get( j ).getNum();                    total += list.get( j ).getNum() * list.get( j ).getPrice();                }            }        }        carZong.setText( "合计：￥" +total );    }    @OnClick({R.id.tou, R.id.car_recycler, R.id.car_box, R.id.car_zong})    public void onViewClicked(View view) {        switch (view.getId()) {            case R.id.tou:                break;            case R.id.car_recycler:                break;            case R.id.car_box:              //全选                for (int i = 0; i < mCarAdapter.getItemCount(); i++) {                    if (carBox.isChecked()){                        mList.get( i ).setIsChecked( 1 );                    }else {                        mList.get( i ).setIsChecked( 0 );                    }                    mChildlist = mList.get( i ).getList();                    for (int j = 0; j < mChildlist.size(); j++) {                        if (carBox.isChecked()){                            mChildlist.get( j ).setSelected(1);                        }else {                            mChildlist.get( j ).setSelected( 0 );                        }                    }                }                mCarAdapter.notifyDataSetChanged();                getTotal();                break;            case R.id.car_zong:                break;        }    }    @Override    public void carSuccess(CarBean success) {        mList = success.getData();        Toast.makeText( this, mList.toString()+"", Toast.LENGTH_SHORT ).show();        mHandler.sendEmptyMessage( 1 );    }    @Override    public void carFail(String carfail) {        Toast.makeText( this, carfail, Toast.LENGTH_SHORT ).show();    }}
     
    
   

//适配器父布局

public class CarRecycleAdapter extends RecyclerView.Adapter
   
     {    private Context mContext;    private List
    
      mList;    private CarchildAdapter mChildadapter;    public CarRecycleAdapter(Context context, List
     
       list) {        mContext = context;        mList = list;    }    //接口回调    private OnShopItemClick mOnShopItemClick;    public void setOnShopItemClick(OnShopItemClick onShopItemClick) {        this.mOnShopItemClick = onShopItemClick;    }    public interface OnShopItemClick{        void onCheckBoxClick(View view, int i);        void onSubViewClick(View view, int i);        void onAddViewClick(View view, int i);    }    @NonNull    @Override    public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {        View view = View.inflate( mContext, R.layout.carfu_adapter, null );        ViewHolder holder = new ViewHolder( view );        return holder;    }    @Override    public void onBindViewHolder(@NonNull ViewHolder viewHolder,final int i) {        viewHolder.adapterFuCheck.setText( mList.get( i ).getSellerName()+"" );        int selected = mList.get( i ).getIsChecked();        if (selected == 1){            viewHolder.adapterFuCheck.setChecked( true );        }else {            viewHolder.adapterFuCheck.setChecked( false );        }        //点击商家选中商品（不好使）        viewHolder.adapterFuCheck.setOnClickListener( new View.OnClickListener() {            @Override            public void onClick(View v) {                List
      
        childList = mList.get( i ).getList();                for (int j = 0; j < childList.size(); j++) {                    childList.get( j ).setSelected( 1 );                }                mChildadapter.notifyDataSetChanged();            }        } );        //设置布局管理器        LinearLayoutManager layoutManager = new LinearLayoutManager(mContext);        layoutManager.setOrientation(LinearLayoutManager.VERTICAL);        viewHolder.adapterChildRecyclerView.setLayoutManager(layoutManager);        //连接子布局集合        List
       
         list = mList.get( i ).getList();        //适配器        mChildadapter = new CarchildAdapter( mContext, list );        viewHolder.adapterChildRecyclerView.setAdapter( mChildadapter );        //点击接收接口回调        mChildadapter.setOnChildItemClick( new CarchildAdapter.OnChildItemClick() {            @Override            public void onCheckBoxClick(View view, int i) {                mOnShopItemClick.onCheckBoxClick(view, i);            }            @Override            public void onSubViewClick(View view, int i) {                mOnShopItemClick.onSubViewClick(view,i);            }            @Override            public void onAddViewClick(View view, int i) {                mOnShopItemClick.onAddViewClick(view, i);            }        } );    }    @Override    public int getItemCount() {        return mList.size();    }    public class ViewHolder extends RecyclerView.ViewHolder {        private final RecyclerView adapterChildRecyclerView;        private final CheckBox adapterFuCheck;        public ViewHolder(@NonNull View itemView) {            super( itemView );            adapterFuCheck = (CheckBox) itemView.findViewById( R.id.adapter_fuCheck );            adapterChildRecyclerView = (RecyclerView) itemView.findViewById( R.id.adapter_child_recyclerView );        }    }}
       
      
     
    
   

//子布局

public class CarchildAdapter extends RecyclerView.Adapter
   
     {    private Context mContext;    private List
    
      mList;    public CarchildAdapter(Context context, List
     
       list) {        mContext = context;        mList = list;    }    //接口回调    private OnChildItemClick onChildItemClick;    public void setOnChildItemClick(OnChildItemClick onChildItemClick) {        this.onChildItemClick = onChildItemClick;    }    public interface OnChildItemClick {        void onCheckBoxClick(View view, int i);        void onSubViewClick(View view, int i);        void onAddViewClick(View view, int i);    }    @NonNull    @Override    public ViewHodel onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {        View view = View.inflate( mContext, R.layout.carchild_adapter, null );        ViewHodel holder = new ViewHodel( view );        return holder;    }    @Override    public void onBindViewHolder(@NonNull final ViewHodel viewHodel, final int i) {        viewHodel.tvGoodsName.setText( mList.get( i ).getTitle() );        viewHodel.tvGoodsPrice.setText( mList.get( i ).getPrice() + "" );        //特殊图片        String images = mList.get( i ).getImages();        String[] spit = images.split( "\\|" );        Glide.with( mContext ).load(spit[0] ).into( viewHodel.adapterChildimage );        viewHodel.tvNum.setText( mList.get( i ).getNum() + "" );        //选择器        viewHodel.adapterChildCheck.setChecked( mList.get( i ).getSelected()== 1 );        //点击选择框        viewHodel.adapterChildCheck.setOnClickListener( new View.OnClickListener() {            @Override            public void onClick(View v) {                int check = mList.get( i ).getSelected();                if (check == 1) {                    mList.get( i ).setSelected( 0 );                } else {                    mList.get( i ).setSelected( 1 );                }                notifyDataSetChanged();                onChildItemClick.onCheckBoxClick( v, i );            }        } );        //点击加减        viewHodel.tvSub.setOnClickListener( new View.OnClickListener() {            @Override            public void onClick(View v) {                int num = mList.get( i ).getNum();                if (num > 1) {                    num--;                    mList.get( i ).setNum( num );                }                notifyDataSetChanged();                onChildItemClick.onSubViewClick( v, i );            }        } );        viewHodel.tvAdd.setOnClickListener( new View.OnClickListener() {            @Override            public void onClick(View v) {                int numadd = mList.get( i ).getNum();                numadd++;                mList.get( i ).setNum( numadd );                notifyDataSetChanged();                onChildItemClick.onAddViewClick( v, i );            }        } );    }    @Override    public int getItemCount() {        return mList.size();    }    public class ViewHodel extends RecyclerView.ViewHolder {        private final CheckBox adapterChildCheck;        private final ImageView adapterChildimage;        private final TextView tvGoodsName, tvGoodsPrice, tvNum, tvSub, tvAdd;        public ViewHodel(@NonNull View itemView) {            super( itemView );            adapterChildCheck = (CheckBox) itemView.findViewById( R.id.adapter_childCheck );            adapterChildimage = (ImageView) itemView.findViewById( R.id.adapter_childimage );            tvGoodsName = (TextView) itemView.findViewById( R.id.tv_goodsName );            tvGoodsPrice = (TextView) itemView.findViewById( R.id.tv_goodsPrice );            tvSub = (TextView) itemView.findViewById( R.id.tv_sub );            tvNum = (TextView) itemView.findViewById( R.id.tv_num );            tvAdd = (TextView) itemView.findViewById( R.id.tv_add );        }    }}
     
    
   

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