Android 实现RecyclerView嵌套RecyclerView 实现购物车的全选 反选 单选 商家全选

里层Adapter的实现
public class MyAdapter2  extends  RecyclerView.Adapter<MyAdapter2.ViewHolder>  {

private Context context;
private List<Shop.DataBean.ListBean> data;
private ongeshu ongeshu;
private getsumprice getsumprice;

public MyAdapter2(Context context, List<Shop.DataBean.ListBean> data ) {
this.context = context;
this.data = data;

//presenter = new ShopPresenter(MyAdapter2.this);
}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = View.inflate(context, R.layout.rv_item2, null);
ViewHolder holder=new ViewHolder(view);
return holder;
}

@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
holder.mAmountView.setGoods_storage(50, data.get(position).num);
holder.tv_name.setText(data.get(position).title);
holder.tv_price.setText("￥" + data.get(position).bargainPrice);
String images = data.get(position).images;
String[] img = images.split("\\|");
Glide.with(context).load(img[0]).into(holder.iv);
//自定义控件的点击事件
holder.mAmountView.setOnAmountChangeListener(new AmountView.OnAmountChangeListener() {
@Override
public void onAmountChange(View view, int amount) {
data.get(position).num=amount;
getsumprice.onsumprice();

}
});
//给cb设置初始值
boolean isselect = data.get(position).isselect;
if(isselect)
{
holder.checkBox.setChecked(true);
ongeshu.geshu();
getsumprice.onsumprice();
}
else
{
holder.checkBox.setChecked(false);
}

holder.checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b) {
if(b)
{
data.get(position).isselect=true;
}
else
{
data.get(position).isselect=false;
}
ongeshu.geshu();
getsumprice.onsumprice();
}
});
}
@Override
public int getItemCount() {
return data.size();
}

public class ViewHolder extends RecyclerView.ViewHolder {

private final TextView tv_name;

4000
private final TextView tv_price;
private final CheckBox checkBox;
private final ImageView iv;
private final AmountView mAmountView;

public ViewHolder(View itemView) {
super(itemView);
tv_name = itemView.findViewById(R.id.tv_name);
tv_price = itemView.findViewById(R.id.tv_price);
checkBox = itemView.findViewById(R.id.checkBox);
iv = itemView.findViewById(R.id.iv);
mAmountView = itemView.findViewById(R.id.amount_view);
}
}

public void setOngeshu(MyAdapter2.ongeshu ongeshu) {
this.ongeshu = ongeshu;
}

public interface ongeshu{
void geshu();
}

public void setGetsumprice(MyAdapter2.getsumprice getsumprice) {
this.getsumprice = getsumprice;
}

public interface getsumprice{
void onsumprice();
}

}

外层adapter的实现

public class MyAdapter  extends RecyclerView.Adapter<MyAdapter.ViewHolder>{
private Context context;
private List<Shop.DataBean> data;
private onzong onzong;
private getSumprice getSumprice;

public MyAdapter(Context context, List<Shop.DataBean> data) {
this.context = context;
this.data = data;
}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = View.inflate(context, R.layout.rv_item, null);
ViewHolder holder=new ViewHolder(view);
return holder;
}

@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {

boolean  flag=true;
for (Shop.DataBean.ListBean listBean : data.get(position).list) {
if(listBean.isselect==false)
{
flag=false;
}
}
holder.shopselect.setChecked(flag);
holder.tv_title.setText(data.get(position).sellerName);
LinearLayoutManager linearLayoutManager=new LinearLayoutManager(context);
linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);

holder.rv.setLayoutManager(linearLayoutManager);
final MyAdapter2 adapter2=new MyAdapter2(context,data.get(position).list);
holder.rv.setAdapter(adapter2);

//点击商家商品全选
holder.shopselect.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
for (Shop.DataBean.ListBean listBean : data.get(position).list) {
if(holder.shopselect.isChecked())
{
listBean.isselect=true;
}
else
{
listBean.isselect=false;
}
}
adapter2.notifyDataSetChanged();
onzong.onshangjia();
getSumprice.onSumprice();
}
});

//调用小adapter的接口实现商品全选 商家选中
adapter2.setOngeshu(new MyAdapter2.ongeshu() {
@Override
public void geshu() {
boolean  flag=true;
for (Shop.DataBean.ListBean listBean : data.get(position).list) {
if(listBean.isselect==false)
{
flag=false;
}
}
holder.shopselect.setChecked(flag);
onzong.onshangpin();
getSumprice.onSumprice();
}
});
adapter2.setGetsumprice(new MyAdapter2.getsumprice() {
@Override
public void onsumprice() {
getSumprice.onSumprice();

}
});

}
@Override
public int getItemCount() {
return data.size();
}
public class ViewHolder extends RecyclerView.ViewHolder{

private final TextView tv_title;
private final RecyclerView rv;
private final CheckBox shopselect;

public ViewHolder(View itemView) {
super(itemView);
tv_title = itemView.findViewById(R.id.tv_title);
rv = itemView.findViewById(R.id.rv);
shopselect = itemView.findViewById(R.id.shopselect);
}
}

public void setOnzong(MyAdapter.onzong onzong) {
this.onzong = onzong;
}

public interface onzong{
void onshangjia();
void onshangpin();
}

public void setGetSumprice(MyAdapter.getSumprice getSumprice) {
this.getSumprice = getSumprice;
}

public interface  getSumprice{
void onSumprice();
}

}

MainActivity的实现

public class MainActivity extends AppCompatActivity implements ShopView {

private RecyclerView rv;
private CheckBox allselect;
private TextView tv_price;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initData();
}

private void initData() {
ShopPresenter presenter=new ShopPresenter(this);
presenter.requestShop();
}
private void initView() {
rv = (RecyclerView) findViewById(R.id.rv);
allselect = (CheckBox) findViewById(R.id.allselect);
tv_price = (TextView) findViewById(R.id.tv_price);
}

@Override
public void onShopSuccess(final List<Shop.DataBean> data) {
if(this!=null)
{
runOnUiThread(new Runnable() {
@Override
public void run() {
LinearLayoutManager linearLayoutManager=new LinearLayoutManager(MainActivity.this);
linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
rv.setLayoutManager(linearLayoutManager);
final MyAdapter adapter=new MyAdapter(MainActivity.this,data);
rv.setAdapter(adapter);

adapter.setOnzong(new MyAdapter.onzong() {
@Override
public void onshangjia() {
boolean flag=true;
for (Shop.DataBean dataBean : data) {
for (Shop.DataBean.ListBean listBean : dataBean.list) {
if(listBean.isselect==false)
{
flag=false;
}
}
}
allselect.setChecked(flag);

}

@Override
public void onshangpin() {
boolean flag=true;
for (Shop.DataBean dataBean : data) {
for (Shop.DataBean.ListBean listBean : dataBean.list) {
if(listBean.isselect==false)
{
flag=false;
}
}
}
allselect.setChecked(flag);
}
});

allselect.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
float price=0;
for (Shop.DataBean dataBean : data) {
for (Shop.DataBean.ListBean listBean : dataBean.list) {
price+=listBean.bargainPrice*listBean.num;
if(allselect.isChecked())
{
listBean.isselect=true;
}
else
{
listBean.isselect=false;

}
}
}

tv_price.setText(price+"");
adapter.notifyDataSetChanged();

}
});
adapter.setGetSumprice(new MyAdapter.getSumprice() {
@Override
public void onSumprice() {
float price=0;
for (Shop.DataBean dataBean : data) {
for (Shop.DataBean.ListBean listBean : dataBean.list) {
if(listBean.isselect==true)
{
price+=listBean.bargainPrice*listBean.num;
}

}
}
tv_price.setText(price+"");
}
});

}
});
}
}

@Override
public void onShopFailure(String msg) {

}

@Override
public void onFailue(Call call, IOException e) {

}
}