如何显示水平 Recyclerview - 无法显示水平项目

Question

I want to show horizontal items in recyclerview, but I've tried but no work it all, only show me horizontal items with enlarge widh.

In Android Studio show as I want

But in runtime in my movile, show me

The items is width wraped but the other items appear after scroll right separated of my previus item.

This is my code.

LIST_ITEM

<?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="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical">


    <LinearLayout
        android:id="@+id/linearFondo"
        android:layout_width="wrap_content"
        android:layout_height="50dp"
        android:background="@drawable/item_list_sel"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/imageView2"
            android:layout_width="20dp"
            android:layout_height="20dp"
            android:layout_gravity="center"
            app:srcCompat="@drawable/ruta"
            tools:srcCompat="@drawable/ruta" />

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="5dp"
            android:orientation="vertical">

            <TextView
                android:id="@+id/tnombre"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:ellipsize="end"
                android:inputType="textMultiLine"
                android:lines="1"
                android:textAppearance="@style/TextAppearance.AppCompat.Medium"
                android:textSize="12sp"
                android:textStyle="bold"></TextView>

            <TextView
                android:id="@+id/thorarios"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:textAppearance="@style/TextAppearance.AppCompat.Small"
                android:textColor="@color/colorPrimary"
                android:textSize="10sp"
                android:visibility="gone"></TextView>

        </LinearLayout>

    </LinearLayout>
</LinearLayout>

And My Xml to show the recyclerview

<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="sitetech.NFCcheckPoint.ui.operador.CheckFragment">

    <!-- TODO: Update blank fragment layout -->

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="40dp"
            android:background="@color/SuccessColor"
            android:gravity="center_vertical"
            android:orientation="horizontal"
            android:paddingLeft="10dp"
            android:paddingRight="10dp">

            <TextView
                android:id="@+id/tfecha"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="2"
                android:text="Fecha"
                android:textSize="20sp" />

            <Button
                android:id="@+id/bpruebas"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Pasar Tarjeta" />

        </LinearLayout>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingLeft="10dp"
            android:paddingRight="10dp"
            android:text="Ruta para el registro" />

        <com.omega_r.libs.omegarecyclerview.OmegaRecyclerView
            android:id="@+id/rlista"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:divider="#888"
            android:dividerHeight="0dp"
            android:fadeScrollbars="true"
            android:orientation="horizontal"
            android:overScrollMode="never"
            android:scrollbarAlwaysDrawHorizontalTrack="true"
            android:scrollbarAlwaysDrawVerticalTrack="false"
            android:scrollbars="horizontal"
            app:itemSpace="0dp"
            tools:listitem="@layout/ruta_sel_template">

        </com.omega_r.libs.omegarecyclerview.OmegaRecyclerView>

    </LinearLayout>
</LinearLayout>

And my Fragment code to load

dataAdapter = new rutaSelAdapter(lista, new onItemClick() {
            @Override
            public void onClickItemList(View v, int position) {
                ToastHelper.info(lista.get(position).getNombre().toString());
            }
        });

        rlista.setLayoutManager(new LinearLayoutManager(getContext(), LinearLayoutManager.HORIZONTAL, false));
        rlista.setAdapter(dataAdapter);

And my dataAdapter class

public class rutaSelAdapter extends OmegaRecyclerView.Adapter<rutaSelAdapter.ViewHolder> {
    public List<Ruta> lista;
    private onItemClick onItemClick;
    private Ruta selectedItem;

    public rutaSelAdapter(List<Ruta> l, onItemClick onclick) {
        lista = l;
        this.onItemClick = onclick;
        if (l.size() > 0)
            setSelectedItem(l.get(0));
    }

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

    @Override
    public rutaSelAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        return new rutaSelAdapter.ViewHolder(parent);
    }

    @Override
    public void onBindViewHolder(rutaSelAdapter.ViewHolder holder, int position) {
        Ruta dato = lista.get(position);
        holder.display(dato);
    }

    public void setSelectedItem(Ruta rx){
        selectedItem = rx;
    }

    public Ruta getSelectedItem(){
        return selectedItem;
    }

    public void updateData(Ruta bx) {
        boolean nuevo = true;
        for (Ruta rx : lista) {
            if (rx.getId() == bx.getId()) {
                lista.set(lista.indexOf(rx), bx);
                nuevo = false;
            }
            ToastHelper.info("Se a modificado el horario.");
        }

        if (nuevo) {
            lista.add(bx);
            ToastHelper.exito("Horario asignado.");
        }

        notifyDataSetChanged();
    }

    public void deleteData(Ruta rx) {
        //ToastHelper.normal("Se a eliminado el horario " + rx.getHora());
        lista.remove(rx);
        notifyDataSetChanged();
    }

    public class ViewHolder extends SwipeViewHolder implements View.OnClickListener {
        private final TextView tnombre;
        private LinearLayout linearFondo;
        HorarioDao horarioManager = AppController.daoSession.getHorarioDao();

        private Ruta currentItem;

        public ViewHolder(ViewGroup itemView) {
            super(itemView, R.layout.ruta_sel_template, SwipeViewHolder.NO_ID, SwipeViewHolder.NO_ID);

            tnombre = findViewById(R.id.tnombre);
            linearFondo = findViewById(R.id.linearFondo);
            contentView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    setSelectedItem(currentItem);
                    onItemClick.onClickItemList(v, getAdapterPosition());
                }
            });
        }

        private Ruta backItem;
        private void setSelection(Ruta rx){
            //if (backItem == null)

        }

        @Override
        public void onClick(final View v) {

        }

        public void display(Ruta rx) {
            currentItem = rx;
            if (rx.getNombre() == null) tnombre.setText("");
            else tnombre.setText(rx.getNombre().toString());
        }
    }
}

In Android Studio show me right as I want.

But in runtime, in my mobile the items have full width but wrap content. enter image description here

Answer 1

i think you just add notifyDataSetChanged in your class adapter

public rutaSelAdapter(List<Ruta> l, onItemClick onclick) {
        lista = l;
        this.onItemClick = onclick;
        if (l.size() > 0)
            setSelectedItem(l.get(0));
        notifyDataSetChanged();
    }

Answer 2

In your recyclerview item layout update width of these 2 textviews [tnombre and thorarios] to wrap_content

<LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center_vertical"
            android:layout_marginLeft="5dp"
            android:orientation="vertical">

            <TextView
                android:id="@+id/tnombre"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:ellipsize="end"
                android:inputType="textMultiLine"
                android:lines="1"
                android:textAppearance="@style/TextAppearance.AppCompat.Medium"
                android:textSize="12sp"
                android:textStyle="bold"></TextView>

            <TextView
                android:id="@+id/thorarios"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_gravity="center_vertical"
                android:textAppearance="@style/TextAppearance.AppCompat.Small"
                android:textColor="@color/colorPrimary"
                android:textSize="10sp"
                android:visibility="gone"></TextView>

        </LinearLayout>

Answer 3

If someone else have this issue, I fixed adding this line in the fragment class.

rlista.setHasFixedSize(true);