回收器视图setLayoutManager Android Studio

没有setLayoutManager时不会显示RecycleView，但setLayoutManager会使我的程序崩溃。我看过的所有教程都演示了这种方法。是的，我知道，有太多的代码和大量的垃圾，但错误可能在任何地方，所以我希望你能帮助我(

StoreInfoPage.java（与MainActivity一样获取）

我真的不认识你！ 一切都是因为TextView.setText（Int）。

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只需将Int替换为String.valueOf（Int）。

请共享您的活动代码？？？您能提供日志吗？我们如何知道您正在谈论的教程。我们如何知道您尝试了什么以及您遇到的错误。请共享您的代码？共享您的日志、活动或片段代码。

public class StoreInfoPage extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.store_info_page);

        RecyclerView lastMonthSellsList = findViewById(R.id.last_month_sells_list);
        ArrayList<Product> products = new ArrayList<>();

        products.add(new Product(4, 5, true, true, 16000, 12000));
        products.add(new Product(4, 5, true, true, 16000, 12000));

        StoreSellingAdapter adapter = new StoreSellingAdapter(this, products);
        lastMonthSellsList.setAdapter(adapter);
        lastMonthSellsList.setLayoutManager(new LinearLayoutManager(this));
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".StoreInfoPage">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/textView41"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="bottom"
            android:textAllCaps="false"
            android:textSize="18sp"
            android:textStyle="bold|italic" />

        <ImageButton
            android:id="@+id/imageButton"
            android:layout_width="50dp"
            android:layout_height="50dp"
            android:background="@android:color/transparent"
            android:scaleType="fitEnd"
            app:srcCompat="@android:drawable/ic_menu_info_details" />
    </LinearLayout>

    <View android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@android:color/darker_gray"
        android:layout_marginBottom="10dp"/>

    <TableLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center">

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/textView13"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="Кофе 3в1"
                android:textColor="#000000"
                android:textSize="24sp"
                android:textStyle="bold|italic" />

            <EditText
                android:id="@+id/editText5"
                android:layout_width="80dp"
                android:layout_height="wrap_content"
                android:ems="10"
                android:fontFamily="@font/roboto_slab_bold"
                android:inputType="number"
                android:textAlignment="center" />

            <TextView
                android:id="@+id/textView17"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:textColor="#000000" />
        </TableRow>

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/textView14"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="Чёрное Кофе"
                android:textColor="#000000"
                android:textSize="24sp"
                android:textStyle="bold|italic" />

            <EditText
                android:id="@+id/editText6"
                android:layout_width="80dp"
                android:layout_height="wrap_content"
                android:ems="10"
                android:fontFamily="@font/roboto_slab_bold"
                android:inputType="number"
                android:textAlignment="center" />

            <TextView
                android:id="@+id/textView18"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:textColor="#000000" />
        </TableRow>

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/textView21"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:fontFamily="@font/roboto_slab_bold" />

            <TextView
                android:id="@+id/textView16"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:fontFamily="@font/roboto_slab_bold"
                android:textColor="#000000" />

            <TextView
                android:id="@+id/textView19"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:fontFamily="@font/roboto_slab_bold"
                android:textColor="#000000" />
        </TableRow>

    </TableLayout>

    <Switch
        android:id="@+id/switch1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:showText="true"
        android:text="ДОЛГ"
        android:textAlignment="center"
        android:textSize="24sp" />

    <Button
        android:id="@+id/button5"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fontFamily="@font/roboto_slab_bold"
        android:text="Добавить"
        android:textSize="24sp" />

    <View android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="@android:color/darker_gray"
        android:layout_marginTop="10dp"
        android:layout_marginBottom="10dp"/>

    <TextView
        android:id="@+id/textView20"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fontFamily="@font/roboto_slab_bold"
        android:text="ПРОШЛЫЙ МЕСЯЦ"
        android:textAlignment="center"
        android:textColor="#000000"
        android:textSize="30sp" />

    <androidx.recyclerview.widget.RecyclerView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/last_month_sells_list"
        />

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center|top"
    android:id="@+id/sells_list_adapter_layout"
    android:orientation="vertical">

    <TableLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/whiteCoffeeAdapter"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="Кофе 3в1"
                android:textColor="#000000"
                android:textSize="24sp" />

            <TextView
                android:id="@+id/whiteCoffeeQuantityAdapter"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="0"
                android:textColor="#000000" />

            <TextView
                android:id="@+id/whiteCoffeePriceAdapter"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="0"
                android:textColor="#000000" />

            <TextView
                android:id="@+id/whiteCoffeeTotalPriceAdapter"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="0"
                android:textColor="#000000" />
        </TableRow>

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/blackCoffeeAdapter"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="Чёрное Кофе"
                android:textColor="#000000"
                android:textSize="24sp"
                android:textStyle="bold" />

            <TextView
                android:id="@+id/blackCoffeeQuantityAdapter"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="0"
                android:textColor="#000000" />

            <TextView
                android:id="@+id/blackCoffeePriceAdapter"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="0"
                android:textColor="#000000" />

            <TextView
                android:id="@+id/blackCoffeeTotalPriceAdapter"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="0"
                android:textColor="#000000" />
        </TableRow>

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/textView38"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:fontFamily="@font/roboto_slab_bold"
                android:textColor="#000000" />

            <TextView
                android:id="@+id/textView39"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:textColor="#000000" />

            <TextView
                android:id="@+id/textView5"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content" />

            <TextView
                android:id="@+id/coffeeTotalPriceAdapter"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:fontFamily="@font/roboto_slab_bold"
                android:text="0"
                android:textColor="#000000" />
        </TableRow>

    </TableLayout>

    <TextView
        android:id="@+id/status_text_view_adapter"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="ОПЛАЧЕНО"
        android:textAlignment="center"
        android:textStyle="bold" />
</LinearLayout>

public class StoreSellingAdapter extends RecyclerView.Adapter<StoreSellingAdapter.ViewHolder>{

    private ArrayList<Product> products;
    private Context context;

    StoreSellingAdapter(Context context, ArrayList<Product> products) {
        this.products = products;
        this.context = context;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.store_sell_list_table_row, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        Product product = products.get(position);
        holder.whiteCoffeeQuantity.setText(product.getWhiteCoffeeQuantity());
        holder.blackCoffeeQuantity.setText(product.getBlackCoffeeQuantity());
        holder.whiteCoffeePrice.setText(product.getWhiteCoffeePrice());
        holder.blackCoffeePrice.setText(product.getBlackCoffeePrice());
        holder.whiteCoffeeTotalPrice.setText(product.getWhiteCoffeeTotalPrice());
        holder.blackCoffeeTotalPrice.setText(product.getBlackCoffeeTotalPrice());
        holder.coffeeTotalPrice.setText(product.getCoffeeTotalPrice());
        if(product.isDebt() && product.isPaid()) {
            holder.statusTextViewAdapter.setText("ДОЛГ(ОПЛАЧЕНО)");
            holder.parentLayout.setBackgroundColor(Color.parseColor("#ef5350"));
        }
    }

    @Override
    public int getItemCount() {
        return products.size();
    }

    class ViewHolder extends RecyclerView.ViewHolder{

        TextView whiteCoffeeQuantity;
        TextView blackCoffeeQuantity;
        TextView whiteCoffeePrice;
        TextView blackCoffeePrice;
        TextView whiteCoffeeTotalPrice;
        TextView blackCoffeeTotalPrice;
        TextView coffeeTotalPrice;
        TextView statusTextViewAdapter;
        LinearLayout parentLayout;

        ViewHolder(@NonNull View itemView) {
            super(itemView);
            whiteCoffeeQuantity = itemView.findViewById(R.id.whiteCoffeeQuantityAdapter);
            blackCoffeeQuantity = itemView.findViewById(R.id.blackCoffeeQuantityAdapter);
            whiteCoffeePrice = itemView.findViewById(R.id.whiteCoffeePriceAdapter);
            blackCoffeePrice = itemView.findViewById(R.id.blackCoffeePriceAdapter);
            whiteCoffeeTotalPrice = itemView.findViewById(R.id.whiteCoffeeTotalPriceAdapter);
            blackCoffeeTotalPrice = itemView.findViewById(R.id.blackCoffeeTotalPriceAdapter);
            coffeeTotalPrice = itemView.findViewById(R.id.coffeeTotalPriceAdapter);
            parentLayout = itemView.findViewById(R.id.sells_list_adapter_layout);
            statusTextViewAdapter = itemView.findViewById(R.id.status_text_view_adapter);
        }
    }
}

public class Product {
    private int whiteCoffeeQuantity;
    private int blackCoffeeQuantity;
    private boolean isDebt;
    private boolean isPaid;
    private int whiteCoffeePrice;
    private int blackCoffeePrice;
    private int whiteCoffeeTotalPrice;
    private int blackCoffeeTotalPrice;
    private int coffeeTotalPrice;

    public Product(int whiteCoffeeQuantity, int blackCoffeeQuantity, boolean isDebt, boolean isPaid, int whiteCoffeePrice, int blackCoffeePrice) {
        this.whiteCoffeeQuantity = whiteCoffeeQuantity;
        this.blackCoffeeQuantity = blackCoffeeQuantity;
        this.isDebt = isDebt;
        this.isPaid = isPaid;
        this.whiteCoffeePrice = whiteCoffeePrice;
        this.blackCoffeePrice = blackCoffeePrice;
        whiteCoffeeTotalPrice = whiteCoffeeQuantity*whiteCoffeePrice;
        blackCoffeeTotalPrice = blackCoffeeQuantity*blackCoffeePrice;
        coffeeTotalPrice = whiteCoffeeTotalPrice+blackCoffeeTotalPrice;
    }

    public int getWhiteCoffeeQuantity() {
        return whiteCoffeeQuantity;
    }

    public void setWhiteCoffeeQuantity(int whiteCoffeeQuantity) {
        this.whiteCoffeeQuantity = whiteCoffeeQuantity;
    }

    public int getBlackCoffeeQuantity() {
        return blackCoffeeQuantity;
    }

    public void setBlackCoffeeQuantity(int blackCoffeeQuantity) {
        this.blackCoffeeQuantity = blackCoffeeQuantity;
    }

    public boolean isDebt() {
        return isDebt;
    }

    public void setDebt(boolean debt) {
        isDebt = debt;
    }

    public boolean isPaid() {
        return isPaid;
    }

    public void setPaid(boolean paid) {
        isPaid = paid;
    }

    public int getWhiteCoffeePrice() {
        return whiteCoffeePrice;
    }

    public void setWhiteCoffeePrice(int whiteCoffeePrice) {
        this.whiteCoffeePrice = whiteCoffeePrice;
    }

    public int getBlackCoffeePrice() {
        return blackCoffeePrice;
    }

    public void setBlackCoffeePrice(int blackCoffeePrice) {
        this.blackCoffeePrice = blackCoffeePrice;
    }

    public int getWhiteCoffeeTotalPrice() {
        return whiteCoffeeTotalPrice;
    }

    public void setWhiteCoffeeTotalPrice(int whiteCoffeeTotalPrice) {
        this.whiteCoffeeTotalPrice = whiteCoffeeTotalPrice;
    }

    public int getBlackCoffeeTotalPrice() {
        return blackCoffeeTotalPrice;
    }

    public void setBlackCoffeeTotalPrice(int blackCoffeeTotalPrice) {
        this.blackCoffeeTotalPrice = blackCoffeeTotalPrice;
    }

    public int getCoffeeTotalPrice() {
        return coffeeTotalPrice;
    }

    public void setCoffeeTotalPrice(int coffeeTotalPrice) {
        this.coffeeTotalPrice = coffeeTotalPrice;
    }
}