android中RecyclerView控件的列表项横向排列

本文是在上一篇文章的基础上做的修改：android中RecyclerView控件的使用

1、修改列表项news_item.xml：我这里是把新闻标题挪到了新闻图片的下面显示

<?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout 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:id="@+id/linearLayout"

    android:layout_width="150dp"

    android:layout_height="match_parent"

    android:minWidth="400dp">

    <ImageView

        android:id="@+id/newsPic"

        android:layout_width="match_parent"

        android:layout_height="80dp"

        android:adjustViewBounds="false"

        android:src="@drawable/o1"

        app:layout_constraintBottom_toBottomOf="parent"

        app:layout_constraintLeft_toLeftOf="parent"

        app:layout_constraintTop_toTopOf="parent" />

    <TextView

        android:id="@+id/newsTitle"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:gravity="center_horizontal"

        android:text="TextView"

        app:layout_constraintTop_toBottomOf="@+id/newsPic" />

</android.support.constraint.ConstraintLayout>

2、修改MainActivity.java类，注意红色添加的内容，其他内容都没有变：

package com.example.chenrui.app1;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.support.v7.widget.LinearLayoutManager;

import android.support.v7.widget.RecyclerView;

import android.widget.LinearLayout;

import com.example.chenrui.common.News;

import java.util.ArrayList;

import java.util.List;

public class MainActivity extends AppCompatActivity {

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        List<News> newsList = new ArrayList();

        newsList.add(new News("新闻标题1",R.drawable.o1));

        newsList.add(new News("新闻标题2",R.drawable.o2));

        newsList.add(new News("新闻标题3",R.drawable.o3));

        newsList.add(new News("新闻标题4",R.drawable.o4));

        newsList.add(new News("新闻标题5",R.drawable.o5));

        NewsAdapter newsAdapter = new NewsAdapter(newsList);

        RecyclerView view = findViewById(R.id.list1);

        LinearLayoutManager layoutManager = new LinearLayoutManager(this);

        layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);

        view.setLayoutManager(layoutManager);

        view.setAdapter(newsAdapter);

    }

}

最终的展示效果：