我有一个recyclerview和一个edittext,当搜索被键入时,它会过滤掉项目。但当点击搜索时,它只会通过第一个未过滤的搜索。这是我的密码。
这是你的名字 FoodAdapter
..
public class FoodAdapter extends RecyclerView.Adapter<FoodAdapter.ProductViewHolder> {
private Context mCtx;
private static List<FoodModel> productList;
private OnNoteListener monNoteListener;
//getting the context and product list with constructor
public FoodAdapter(Context mCtx, List<FoodModel> productList, OnNoteListener onNoteListener) {
this.mCtx = mCtx;
this.productList = productList;
this.monNoteListener = onNoteListener;
}
public void filteredList(List<FoodModel> filteredList) {
productList = filteredList;
notifyDataSetChanged();
}
@Override
public ProductViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
//inflating and returning our view holder
LayoutInflater inflater = LayoutInflater.from(mCtx);
View view = inflater.inflate(R.layout.sam_layout_products, null);
return new ProductViewHolder(view,monNoteListener);
}
@Override
public void onBindViewHolder(ProductViewHolder holder, int position) {
//getting the product of the specified position
FoodModel product = productList.get(position);
//binding the data with the viewholder views
holder.txtFoodName.setText(product.getFoodName());
holder.txtFoodDesc.setText(product.getFoodDesc());
holder.txtFoodPrice.setText(product.getFoodPrice());
holder.imageView.setImageDrawable(mCtx.getResources().getDrawable(product.getFoodImage()));
}
@Override
public int getItemCount() {
return productList.size();
}
public class ProductViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView txtFoodName, txtFoodDesc, txtFoodPrice;
ImageView imageView;
OnNoteListener onNoteListener;
public ProductViewHolder(View itemView, OnNoteListener onNoteListener) {
super(itemView);
txtFoodName = itemView.findViewById(R.id.txtFood);
txtFoodDesc = itemView.findViewById(R.id.txtFoodDesc);
txtFoodPrice = itemView.findViewById(R.id.txtFoodPrice);
imageView = itemView.findViewById(R.id.imageView);
this.onNoteListener = onNoteListener;
itemView.setOnClickListener(this);
}
@Override
public void onClick(View view) {
onNoteListener.onNoteClick(getAdapterPosition());
}
}
public interface OnNoteListener{
void onNoteClick(int position);
}
}
这是活动 FoodActivity
```
public class FoodsActivity extends AppCompatActivity implements FoodAdapter.OnNoteListener {
private DrawerLayout dl;
private ActionBarDrawerToggle t;
private NavigationView nv;
static List FoodList;
static List filteredList;
//the recyclerview
RecyclerView recyclerView;
String NameString;
FoodAdapter foodAdapter;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.foods_layout);
setTitle("Foods");
RecyclerViewFood();
EditText txtFoodSearch = findViewById(R.id.txtFoodSearch);
txtFoodSearch.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {
}
@Override
public void onTextChanged(CharSequence query, int i, int i1, int i2) {
}
@Override
public void afterTextChanged(Editable editable) {
SearchFilter(editable.toString());
}
});
}
@Override
public void onNoteClick(int position) {
Intent intent = new Intent(this, sample_layout.class);
intent.putExtra("foods", FoodList.get(position));
startActivity(intent);
}
private void SearchFilter(String text){
recyclerView = (RecyclerView) findViewById(R.id.FoodRecyclerView);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
filteredList = new ArrayList<>();
for(FoodModel item: FoodList){
if(item.getFoodName().toLowerCase().contains(text.toLowerCase())){
filteredList.add(item);
}
}
foodAdapter = new FoodAdapter(this,filteredList,this);
// what can i do to pass the correct item to the next intent
recyclerView.setAdapter(foodAdapter);
}
public void RecyclerViewFood() {
recyclerView = (RecyclerView) findViewById(R.id.FoodRecyclerView);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
FoodList = new ArrayList<>();
String food_name[] = getResources().getStringArray(R.array.food_name);
String food_desc[] = getResources().getStringArray(R.array.food_desc);
String food_price[] = getResources().getStringArray(R.array.food_price);
int food_image[] = {R.drawable.pic_chickenpizza, R.drawable.pic_dorowot, R.drawable.pic_genfo, R.drawable.pic_kitfo, R.drawable.pic_tibs};
for (int i = 0, j = 0, k = 0, l = 0; i < food_name.length; i++, j++, k++, l++) {
FoodList.add(new FoodModel(2, food_name[i], food_desc[j], food_price[k], food_image[l]));
}
//creating recyclerview adapter
foodAdapter= new FoodAdapter(this, FoodList, this);
//setting adapter to recyclerview
recyclerView.setAdapter(foodAdapter);
}
当输入搜索时,它会工作,但当单击filteredlist时,它会将错误的项传递给下一个目的。
3条答案
按热度按时间xzlaal3s1#
首先,你的适配器
implements Filterable
.在构造函数中:
实现filterable需要重写
getFilter()
方法。筛选列表:在onbindviewholder中使用筛选列表非常重要:
现在在您的活动中:
编辑:获取筛选列表而不是普通列表的大小:
在适配器的onclick中:
carvr3hs2#
不过,我删除了旧的setonclicklistener,并在onbindviewholder中创建了一个新的,代码如下
现在它开始工作了。感谢大家的回答:)
jdzmm42g3#
这是你在@prince ali的代码中可能遇到的错误的延续。进行这些更改以将上下文传递给您的意图
现在在你的onclick方法中