我要做一个服装店的应用程序´我试着用2个微调器和一个循环视图进行过滤搜索。问题是我不知道´我不知道怎么过滤。数据从firebase下载。问题是,我想成为一个迪纳米克回收,所以如果我选择其中一个选择,我想看到的要求。所以我的问题是我不知道´我不知道怎么知道这两个纺纱机是用哪一个。这两个纺纱机必须单独工作,但它们是相互配合的。
这是我的密码。
String txtBrand,txtKind;
Spinner spinBrand,spinKind;
RecyclerView rv;
List<String>Brands;
List<Producto> productlist;
AdapterAllProducts adapterAllProducts;
public DatabaseReference mReference;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v =inflater.inflate(R.layout.filter_fragment, container, false);
spinMarca=v.findViewById(R.id.spinnerBrand);
spinTipo=v.findViewById(R.id.spinnerKind);
rv=v.findViewById(R.id.rv);
Brands= Arrays.asList(getResources().getStringArray(R.array.brands));
mReference= FirebaseDatabase.getInstance().getReference("Product");
spinBrand.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
txtBrand = Brands.get(i);
loadRecycler(txtBrand);
}
@Override
public void onNothingSelected(AdapterView<?> adapterView) {
}
});
return v;
}
public void loadRecycler(final String Marca){
rv.setLayoutManager(new LinearLayoutManager(getContext()));
productslist= new ArrayList<>();
adapterAllProducts = new AdapterAllProducts(productslist,getActivity());
adapterAllProducts.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Product prod = productslist.get(rv.getChildAdapterPosition(v));
String pid = prod.getPid();
String name = prod.getName();
String desc = prod.getDescription();
String ref = prod.getReference();
float pri = (float)prod.getPrize();
int cant = prod.getQuantity();
String brand = prod.getBrand();
Preferencias.setPid(getActivity(),pid);
Preferencias.setName(getActivity(),nombre);
Preferencias.setPrize(getActivity(),pre);
Preferencias.setReference(getActivity(),ref);
Preferencias.setDesc(getActivity(),desc);
Preferencias.setQuantity(getActivity(),cant);
Preferencias.setBrand(getActivity(),brand);
Fragment fragment = new ProductsFragment();
FragmentManager ManagerUser = getFragmentManager();
FragmentTransaction transactionUser = ManagerUser.beginTransaction();
transactionUser.replace(R.id.contentfragment,fragmentuser);
transactionUser.commit();
}
});
rv.setAdapter(adapterAllProducts);
Query q = mReference.orderByChild("brand").equalTo(brand);
q.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot snapshot) {
productoslist.clear();
for (DataSnapshot Snapshot : snapshot.getChildren()
) {
Product product = Snapshot.getValue(Product.class);
productslist.add(product);
}
adapterAllProducts.notifyDataSetChanged();
}
@Override
public void onCancelled(@NonNull DatabaseError error) {
}
});
}}
我为我的英语道歉。它´这不是我妈的冷笑话。如果有人能帮我,我将非常感激他们。
1条答案
按热度按时间qmelpv7a1#
基本思想是从两个方面来阅读
spinners
当用户试图更改其筛选器或用户取消您的筛选器弹出窗口时。这样,只需添加显示为第0个索引的空/空/默认文本的检查spinner
```String text1 = mySpinner1.getSelectedItem().toString()
String text2 = mySpinner2.getSelectedItem().toString()