使RecyclerView垂直

Question

美好的一天。我是Android新手。我在RecyclerView时遇到了一些问题。我想为我的数据图像及其文本制作垂直外观，但它看起来是水平的。我已经尝试在RecyclerView窗口小部件中将 orientation 写为 orientation ，它是FrameLayout，位于CardView。即使我把 android：scrolbars 作为垂直。但是这和他们都没有帮助。

这里是RecyclerView的水平结果：

生成的图片

fragment_blank.xml文件：

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.ganz.afex_with_default_navigation.fragments.BlankFragment">

    <!-- TODO: Update blank fragment layout -->
    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerview_id"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    </android.support.v7.widget.RecyclerView>

</FrameLayout>

CardView：

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
    android:id="@+id/cardview_id"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    xmlns:cardview="http://schemas.android.com/apk/res-auto"
    cardview:cardCornerRadius="4dp"
    android:clickable="true"
    android:foreground="?android:attr/selectableItemBackground">

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

        <ImageView
            android:id="@+id/tovar_img_id"
            android:layout_width="match_parent"
            android:layout_height="225px"
            android:background="#2d2d2d"/>

        <TextView
            android:id="@+id/tovar_title_id"
            android:textColor="@color/redable"
            android:textSize="20sp"
            android:paddingLeft="50dp"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:text="Tovar"/>

       <!-- </ImageView>-->


    </LinearLayout>

</android.support.v7.widget.CardView>

更新 RecyclerView初始化：

package com.example.ganz.afex_with_default_navigation.fragments;


import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.GridLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.example.ganz.afex_with_default_navigation.R;
import com.example.ganz.afex_with_default_navigation.adapters.Recyclerview_Adapter;
import com.example.ganz.afex_with_default_navigation.models.Tovar_tavsiya;

import java.util.ArrayList;
import java.util.List;


/**
 * A simple {@link Fragment} subclass.
 */
public class BlankFragment extends Fragment {

    public BlankFragment() {
        // Required empty public constructor
    }


    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_blank, container, false);
        //Tovar list BEGIN
        List<Tovar_tavsiya> lstTovar;
        lstTovar = new ArrayList<>();
        lstTovar.add(new Tovar_tavsiya("Modadagi kiyimlar", "Tovar kategoriyasi", "Description", R.drawable.tile_bg_1));
        lstTovar.add(new Tovar_tavsiya("Chet eldan uskunalar", "Tovar kategoriyasi", "Description", R.drawable.tile_bg_2));
        lstTovar.add(new Tovar_tavsiya("Tekstil mahsulotlari", "Tovar kategoriyasi", "Description", R.drawable.tile_bg_3));

        RecyclerView myrv = (RecyclerView) v.findViewById(R.id.recyclerview_id);
        Recyclerview_Adapter myrv_Adapter = new Recyclerview_Adapter(getContext(), lstTovar);
        myrv.setLayoutManager(new GridLayoutManager(getContext(), 3));
        myrv.setAdapter(myrv_Adapter);
        return v;
    }

}

Answer 1

使用此

myrv.setLayoutManager(new LinearLayoutManager(getContext()));

而不是

myrv.setLayoutManager(new GridLayoutManager(getContext(), 3));

Answer 2

确保您初始化此代码：

LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
your_recycler_view.setLayoutManager(layoutManager);

默认情况下，方向为 VERTICAL

希望这会有所帮助

Answer 3

将您的代码更改为

Recyclerview_Adapter myrv_Adapter = new Recyclerview_Adapter(getContext(), lstTovar);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
//when you want vertical
layoutManager.setOrientation(context,LinearLayoutManager.VERTICAL,false);
myrv.setLayoutManager(layoutManager);
myrv.setAdapter(myrv_Adapter);

Answer 4

recyclerView.layoutManager = LinearLayoutManager（上下文， RecyclerView.VERTICAL ，否）

recyclerView.layoutManager = LinearLayoutManager（上下文， RecyclerView.HORIZONTAL ，否）