Я не могу отобразить данные из SQLite. Я создал свой адаптер, когда я установил адаптер на утилиту просмотра.

Question

Вот мой код ItemsAdapter, где я раздуваю представление и привязываю данные:

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

    private Context fContext;
    private LayoutInflater fLayoutInflater;
    private List<Item> fItemList;

    public ItemsAdapter(Context context, List<Item> itemList) {

        fContext = context;
        fLayoutInflater = LayoutInflater.from(fContext);
        fItemList = itemList;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {

        View rootView = fLayoutInflater.inflate(R.layout.list_row_item, parent, false);
        return new ViewHolder(rootView, fContext);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {

        // bind data to the views
        holder.fItemName.setText(fItemList.get(position).getsName());
        holder.fItemQty.setText(fItemList.get(position).getItemQty());
        holder.fItemColor.setText(fItemList.get(position).getsColor());
        holder.fItemSize.setText(fItemList.get(position).getItemSize());
        holder.fItemTime.setText(fItemList.get(position).getDateItemAdded());

    }

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

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

        public TextView fItemName, fItemQty, fItemColor, fItemSize, fItemTime;
        public ImageButton fButtonDelete, fButtonUpdate;
        public int itemPosition;

        public ViewHolder(@NonNull View itemView, Context ct) {
            super(itemView);

            fContext = ct;

            // connect to the xml
            fItemName = (TextView) itemView.findViewById(R.id.text_view_item_name);
            fItemQty = (TextView) itemView.findViewById(R.id.text_view_item_qty);
            fItemColor = (TextView) itemView.findViewById(R.id.text_view_item_color);
            fItemSize = (TextView) itemView.findViewById(R.id.text_view_item_size);
            fItemTime = (TextView) itemView.findViewById(R.id.text_view_item_added);
            fButtonDelete = (ImageButton) itemView.findViewById(R.id.image_button_delete);
            fButtonUpdate = (ImageButton) itemView.findViewById(R.id.image_button_update);

            // on click
            fButtonDelete.setOnClickListener(this);
            fButtonUpdate.setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {
            switch (view.getId()) {

                case R.id.image_button_delete:
                    break;

                case R.id.image_button_update:
                    break;
            }
        }
    }
}

Вот моя деятельность, в которой я использую адаптер, инициализируя его и передавая контекст и список:

public class ItemsList extends AppCompatActivity {

    private static final String TAG = "Items" ;
    private ItemOpenHelper fItemOpenHelper;
    private RecyclerView fRecyclerView;
    private List<Item> fList;
    private ItemsAdapter fItemAdapter;

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

        // setup the recycler view
        fRecyclerView = (RecyclerView) findViewById(R.id.recycler_list_items);
        fRecyclerView.setHasFixedSize(true);
        fRecyclerView.setLayoutManager(new LinearLayoutManager(this));

        fItemOpenHelper = new ItemOpenHelper(this);
        fList = new ArrayList<>();
        fList = fItemOpenHelper.getAllItems();

        Log.i("Items", "onCreate: " + fList.size());
        for ( Item item : fList) {
            Log.i(TAG, "onCreate: " + item.getsName());
        }

        fItemAdapter = new ItemsAdapter(this, fList);
        fRecyclerView.setAdapter(fItemAdapter);
        fItemAdapter.notifyDataSetChanged();


    }
}

Вот мой макет xml код для list_row_item, где я создаю макет для элемента списка

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView 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="wrap_content"
    android:alpha="@android:dimen/app_icon_size"
    android:elevation="5dp"
    android:padding="5dp"
    app:cardCornerRadius="4dp"
    app:cardElevation="5dp"
    app:contentPadding="3dp">


    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <TextView
            android:fontFamily="sans-serif"
            android:textColor="@color/black"
            android:textSize="12sp"
            android:id="@+id/text_view_item_name"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginStart="24dp"
            android:layout_marginLeft="24dp"
            android:layout_marginTop="32dp"
            android:layout_marginEnd="24dp"
            android:layout_marginRight="24dp"
            android:text="@string/app_name"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toTopOf="parent" />

        <TextView
            android:id="@+id/text_view_item_qty"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:text="Quantity"
            app:layout_constraintEnd_toEndOf="@+id/text_view_item_name"
            app:layout_constraintStart_toStartOf="@+id/text_view_item_name"
            app:layout_constraintTop_toBottomOf="@+id/text_view_item_name" />

        <TextView
            android:id="@+id/text_view_item_color"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:text="Color"
            app:layout_constraintEnd_toEndOf="@+id/text_view_item_qty"
            app:layout_constraintStart_toStartOf="@+id/text_view_item_qty"
            app:layout_constraintTop_toBottomOf="@+id/text_view_item_qty" />

        <TextView
            android:id="@+id/text_view_item_size"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:text="Size"
            app:layout_constraintEnd_toEndOf="@+id/text_view_item_color"
            app:layout_constraintStart_toStartOf="@+id/text_view_item_color"
            app:layout_constraintTop_toBottomOf="@+id/text_view_item_color" />

        <TextView
            android:id="@+id/text_view_item_added"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:text="20 Feb, 2020"
            app:layout_constraintEnd_toEndOf="@+id/text_view_item_size"
            app:layout_constraintStart_toStartOf="@+id/text_view_item_size"
            app:layout_constraintTop_toBottomOf="@+id/text_view_item_size" />

        <ImageButton
            android:id="@+id/image_button_delete"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintHorizontal_bias="0.957"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/text_view_item_added"
            tools:srcCompat="@drawable/remove_item" />

        <ImageButton
            android:id="@+id/image_button_update"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="28dp"
            android:layout_marginRight="28dp"
            app:layout_constraintEnd_toStartOf="@+id/image_button_delete"
            app:layout_constraintTop_toBottomOf="@+id/text_view_item_added"
            tools:srcCompat="@drawable/update_item" />
    </androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>

Вот мой вывод logcat, в котором ошибка «Ошибка надувания класса». Я просмотрел код несколько раз, и он выглядит довольно чисто. Я также попытался отладить свое приложение, но я не могу решить эту ошибку. Кто-нибудь может помочь?

Process: com.example.babyneeds, PID: 11955
    android.view.InflateException: Binary XML file line #2: Binary XML file line #2: Error inflating class <unknown>
    Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class <unknown>
    Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Constructor.newInstance0(Native Method)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:343)
        at android.view.LayoutInflater.createView(LayoutInflater.java:647)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:807)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
        at com.example.babyneeds.adapter.ItemsAdapter.onCreateViewHolder(ItemsAdapter.java:35)
        at com.example.babyneeds.adapter.ItemsAdapter.onCreateViewHolder(ItemsAdapter.java:18)
        at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6794)
        at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:5975)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5858)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5854)
        at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2230)
        at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1557)
        at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1517)
        at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:612)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:3924)
        at androidx.recyclerview.widget.RecyclerView.onMeasure(RecyclerView.java:3336)
        at android.view.View.measure(View.java:23381)
        at androidx.constraintlayout.widget.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1227)
        at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1572)
        at android.view.View.measure(View.java:23381)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6829)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
        at androidx.appcompat.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143)
        at android.view.View.measure(View.java:23381)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6829)
        at androidx.appcompat.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:403)
        at android.view.View.measure(View.java:23381)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6829)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
        at android.view.View.measure(View.java:23381)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6829)
        at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1535)
        at android.widget.LinearLayout.measureVertical(LinearLayout.java:825)
        at android.widget.LinearLayout.onMeasure(LinearLayout.java:704)
        at android.view.View.measure(View.java:23381)
        at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6829)
        at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
        at com.android.internal.policy.DecorView.onMeasure(DecorView.java:867)
        at android.view.View.measure(View.java:23381)
        at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2837)
        at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1634)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1929)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1522)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:7438)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:965)
        at android.view.Choreographer.doCallbacks(Choreographer.java:777)
2020-02-21 00:04:59.859 11955-11955/com.example.babyneeds E/AndroidRuntime:     at android.view.Choreographer.doFrame(Choreographer.java:709)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:951)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:193)
        at android.app.ActivityThread.main(ActivityThread.java:6715)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:911)
     Caused by: java.lang.NumberFormatException: For input string: "48.0dip"
        at sun.misc.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:2043)
        at sun.misc.FloatingDecimal.parseFloat(FloatingDecimal.java:122)
        at java.lang.Float.parseFloat(Float.java:451)
        at android.content.res.TypedArray.getFloat(TypedArray.java:424)
        at android.view.View.<init>(View.java:5073)
        at android.view.ViewGroup.<init>(ViewGroup.java:664)
        at android.widget.FrameLayout.<init>(FrameLayout.java:92)
        at android.widget.FrameLayout.<init>(FrameLayout.java:87)
        at androidx.cardview.widget.CardView.<init>(CardView.java:121)
        at androidx.cardview.widget.CardView.<init>(CardView.java:117)
            ... 58 more