购物车
自定义计数器
public class CustomCounter extends LinearLayout {
private Context mContext;
private EditText editText_num;
private ImageView imageView_jia;
private ImageView imageView_jian;
private CartChildAdapter adapter;
private List list;
private int num;
private int position;
public CustomCounter(Context context) {
super(context);
mContext=context;
list=new ArrayList<>();
initView();
}
public CustomCounter(Context context, @Nullable AttributeSet attrs) {
super(context, attrs);
mContext=context;
list=new ArrayList<>();
initView();
}
public void setData(CartChildAdapter adapter, final List list, int i){
this.adapter=adapter;
this.list=list;
position=i;
num = list.get(i).getNum();
editText_num.setText(num+"");
editText_num.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
try {
String s1 = String.valueOf(s);
num = Integer.parseInt(s1);
list.get(position).setNum(num);
}catch (Exception e){
e.printStackTrace();
list.get(position).setNum(1);
}
if(callBackListener!=null){
callBackListener.getCheckState();
}
}
@Override
public void afterTextChanged(Editable s) {
}
});
}
private void initView() {
View view=View.inflate(mContext, R.layout.count_item,null);
editText_num = view.findViewById(R.id.edit_num);
imageView_jia = view.findViewById(R.id.image_jia);
imageView_jian = view.findViewById(R.id.image_jian);
imageView_jia.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
num++;
list.get(position).setNum(num);
editText_num.setText(num+"");
callBackListener.getCheckState();
adapter.notifyItemChanged(position);
}
});
imageView_jian.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(num>1){
num--;
list.get(position).setNum(num);
editText_num.setText(num+"");
callBackListener.getCheckState();
adapter.notifyItemChanged(position);
}else {
Toast.makeText(mContext,"数量不能小于0",Toast.LENGTH_SHORT).show();
}
}
});
addView(view);
}
public onCallBackListener callBackListener;
public void setOnCallBackListener(onCallBackListener backListener){
this.callBackListener=backListener;
}
public interface onCallBackListener{
void getCheckState();
}
}
商品的adapter
public class CartChildAdapter extends RecyclerView.Adapter {
private List list;
private Context context;
public CartChildAdapter(List list, Context context) {
this.list = list;
this.context = context;
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View view= LayoutInflater.from(context).inflate(R.layout.cart_child_item,viewGroup,false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull final ViewHolder viewHolder, final int i) {
viewHolder.price.setText("￥"+list.get(i).getPrice()+".00");
viewHolder.title.setText(list.get(i).getTitle());
String images = list.get(i).getImages();
String[] split = images.split("\\|");
Glide.with(context).load(split[0]).into(viewHolder.imageView);
viewHolder.checkBox.setChecked(list.get(i).isChecked());
viewHolder.checkBox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
list.get(i).setChecked(viewHolder.checkBox.isChecked());
if(callBackListener!=null){
callBackListener.getCheckState();
}
}
});
//设置数量
viewHolder.customCounter.setData(this,list,i);
viewHolder.customCounter.setOnCallBackListener(new CustomCounter.onCallBackListener() {
@Override
public void getCheckState() {
if(callBackListener!=null){
callBackListener.getCheckState();
}
}
});
}
@Override
public int getItemCount() {
return list.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
@BindView(R.id.item_check)
CheckBox checkBox;
@BindView(R.id.item_price)
TextView price;
@BindView(R.id.item_title)
TextView title;
@BindView(R.id.item_simple)
ImageView imageView;
@BindView(R.id.custom_counter)
CustomCounter customCounter;
public ViewHolder(@NonNull View itemView) {
super(itemView);
ButterKnife.bind(this,itemView);
}
}
public onCallBackListener callBackListener;
public void setOnCallBackListener(onCallBackListener backListener){
this.callBackListener=backListener;
}
public interface onCallBackListener{
void getCheckState();
}
public void updateCheck(boolean isSelect){
for(CartBean.DataBean.ListBean listBean:list){
listBean.setChecked(isSelect);
}
notifyDataSetChanged();
}
}
商家的adapter
public class CartAdapter extends RecyclerView.Adapter {
private List list;
private Context context;
public CartAdapter(Context context) {
this.context = context;
list=new ArrayList<>();
}
public void setList(List list) {
this.list = list;
notifyDataSetChanged();
}
@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
View view= LayoutInflater.from(context).inflate(R.layout.cart_item,viewGroup,false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull final ViewHolder viewHolder, final int i) {
viewHolder.textView_seller.setText(list.get(i).getSellerName());
LinearLayoutManager manager=new LinearLayoutManager(context);
manager.setOrientation(OrientationHelper.VERTICAL);
viewHolder.recyclerView.setLayoutManager(manager);
List alist = this.list.get(i).getList();
final CartChildAdapter adapter = new CartChildAdapter(alist,context);
viewHolder.recyclerView.setAdapter(adapter);
viewHolder.checkBox_goods.setChecked(list.get(i).isChecked());
adapter.setOnCallBackListener(new CartChildAdapter.onCallBackListener() {
@Override
public void getCheckState() {
if(callBackListener!=null){
callBackListener.getCheckState();
}
List list1 = list.get(i).getList();
boolean isCheckAll=true;
for (CartBean.DataBean.ListBean listBean:list1){
if(!listBean.isChecked()){
isCheckAll=false;
}
}
list.get(i).setChecked(isCheckAll);
viewHolder.checkBox_goods.setChecked(isCheckAll);
}
});
viewHolder.checkBox_goods.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
list.get(i).setChecked(viewHolder.checkBox_goods.isChecked());
adapter.updateCheck(viewHolder.checkBox_goods.isChecked());
}
});
}
@Override
public int getItemCount() {
return list.size();
}
public class ViewHolder extends RecyclerView.ViewHolder {
@BindView(R.id.text_seller)
TextView textView_seller;
@BindView(R.id.child_recycler)
RecyclerView recyclerView;
@BindView(R.id.check_goods)
CheckBox checkBox_goods;
public ViewHolder(@NonNull View itemView) {
super(itemView);
ButterKnife.bind(this,itemView);
}
}
public onCallBackListener callBackListener;
public void setOnCallBackListener(onCallBackListener backListener){
this.callBackListener=backListener;
}
public interface onCallBackListener{
void getCheckState();
}
}
activity
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_cart);
iPresenter=new IPresenterImpl(this);
ButterKnife.bind(this);
LinearLayoutManager manager=new LinearLayoutManager(this);
manager.setOrientation(OrientationHelper.VERTICAL);
recyclerView.setLayoutManager(manager);
adapter=new CartAdapter(this);
recyclerView.setAdapter(adapter);
adapter.setOnCallBackListener(new CartAdapter.onCallBackListener() {
@Override
public void getCheckState() {
double totalPrice=0;
int num=0;
int totalNum=0;
for(int a=0;a list = data1.get(a).getList();
for (int i=0;i map=new HashMap<>();
map.put("uid",26522+"");
iPresenter.startRequestPost(Apis.URL_CART,map, CartBean.class);
}
@OnClick({R.id.check_all})
public void getViewClick(View view){
switch (view.getId()){
case R.id.check_all:
checkAll(checkBox_all.isChecked());
adapter.notifyDataSetChanged();
break;
}
}
public void checkAll(boolean isCheckAll){
double totalPrice=0;
int num=0;
for(int a=0;a list = data1.get(a).getList();
data1.get(a).setChecked(isCheckAll);
for (int i=0;i