Android实现购物车整体页面逻辑详解
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2021-01-04
21:34:28
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Android实现购物车整体页面逻辑详解实现购物车整体页面逻辑详解
本文为大家讲解了Android实现购物车的整体页面逻辑，供大家参考，具体内容如下
MainActivity.java
public class MainActivity extends AppCompatActivity implements View.OnClickListener{
String url = "http://www.zhaoapi.cn/product/getCarts";
private ExpandableListView el_cart;
private CheckBox cb_cart_all_select;
private TextView tv_cart_total_price;
private Button btn_cart_pay;
MyAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initView();
initData();
}
private void initData() {
HashMap<String, String> map = new HashMap<>();
map.put("uid","71");
OkhtttpUtils.getInstance().doPost(url, map, new OkhtttpUtils.OkCallback() {
@Override
public void onFailure(Exception e) {
}
@Override
public void onResponse(String json) {
CartInfo cartInfo = new Gson().fromJson(json, CartInfo.class);
if ("0".equals(cartInfo.getCode())){
List<CartInfo.DataBean> data = cartInfo.getData();
adapter = new MyAdapter(data);
el_cart.setAdapter(adapter);
//展开二级列表
for(int x=0; x<data.size(); x++){
el_cart.expandGroup(x);
}
adapter.setOnCartListChangeListener(new MyAdapter.onCartListChangeListener() {
@Override
public void onSellerCheckedChange(int i) {
//商家被点击
boolean currentSellerAllProductSelected = adapter.isCurrentSellerAllProductSelected(i);
adapter.changeCurrentSellerAllProductsStatus(i, !currentSellerAllProductSelected);
adapter.notifyDataSetChanged();
//B.刷新底部数据
refreshSelectedAndTotalPriceAndTotalNumber();
}
@Override
public void onProductCheckedChange(int i, int i1) {
//点击商品得checkbox
adapter.changeCurrentProductStatus(i,i1);
adapter.notifyDataSetChanged();
//B.刷新底部数据
refreshSelectedAndTotalPriceAndTotalNumber();
}
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