Question

我需要不同的列表到一个listView（取决于使用它的类）。像这样：

private static List<Product> catalogA;
private static List<Product> catalogB;
private static List<Product> catalogC;

public static List<Product> getCatalogA(Resources res){  
  if(catalogA == null) {
   catalogA = new Vector<Product>();       
   catalogA.add(new Product("product1", 1));       
   catalogA.add(new Product("product2", 2));
   }
   return catalogA;
   }

public static List<Product> getCatalogB(Resources res){  
  if(catalogB == null) {
   catalogB = new Vector<Product>();       
   catalogB.add(new Product("product3", 3));       
   catalogB.add(new Product("product4", 4));
   }
   return catalogB;
   }

另外，我需要包含catalogA和catalogB的资源。它看起来像这样：

public static List<Product> getCatalogC(Resources res){  
  if(catalogC == null) {
   catalogC = new Vector<Product>();       
   catalogC.addAll(catalogA);      
   catalogC.addAll(catalogB);
   }
   return catalogC;
   }

然后在我的两个不同的类中，我正在尝试获取此资源，将Adapter设置为ListView，并设置OnItemClickListener。像这样：头等舱：

  mProductList = ResHelper.getCatalogA(getResources());
  ListView listViewCatalog = (ListView) findViewById(R.id.ListViewCatalog);
  mProductAdapter = new ProductAdapter(mProductList, getLayoutInflater());
  listViewCatalog.setAdapter(mProductAdapter);

  listViewCatalog.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {

            Intent productDetailsIntent = new Intent(getBaseContext(),DetailsActivity.class);
            DetailsIntent.putExtra(ResHelper.PRODUCT_INDEX, position);
            startActivity(DetailsIntent);
        }
    });

第二课（几乎相同）：

  mProductList = ResHelper.getCatalogB(getResources());
  ListView listViewCatalog = (ListView) findViewById(R.id.ListViewCatalog);
  mProductAdapter = new ProductAdapter(mProductList, getLayoutInflater());
  listViewCatalog.setAdapter(mProductAdapter);

  listViewCatalog.setOnItemClickListener(new OnItemClickListener() {

        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position,
                long id) {

            Intent productDetailsIntent = new Intent(getBaseContext(),DetailsActivity.class);
            DetailsIntent.putExtra(ResHelper.PRODUCT_INDEX, position);
            startActivity(DetailsIntent);
        }
    });

这是我在课堂上必须在点击项目时开始的内容：

  List<Product> catalogC = ResHelper.getCatalogC(getResources());

  int productIndex = getIntent().getExtras().getInt(ResHelper.PRODUCT_INDEX);
  final Product selectedProduct = catalogC.get(productIndex);

我的问题是：除OnItemClick外，一切正常。它不起作用。我不确定是因为“位置”还是因为类中的catalogC必须启动OnItemClick。但我不需要另一个适配器或其他ListView。 OnItemClick在两个类中也必须具有相同的功能。有可能吗？

android：onItemClick不起作用

0 个答案: