android 开发 RecyclerView 横排列列表布局

时间:2021-11-13 21:09:15

1.写一个一竖的自定义布局:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/horizontalImageView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ace"
android:layout_margin="5dp"/>
<TextView
android:id="@+id/horizontalTextViewName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="这里显示名称"
android:textColor="@color/colorBlack"
android:textSize="20sp"
android:layout_gravity="center"/>
<TextView
android:id="@+id/horizontalTextViewContent"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="这里显示描述内容描述内容描述内容描述内容"
android:textColor="@color/colorblue"
android:layout_gravity="left"
android:maxLines="3"
android:maxLength="10"
android:ellipsize="end"/> </LinearLayout>

预览效果:

android 开发 RecyclerView 横排列列表布局

2.写一个适配器的类

package com.example.lenovo.myrecyclerview.RecyclerViewToolkit;

import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import com.example.lenovo.myrecyclerview.R; import java.util.List; /**
* Created by lenovo on 2018/5/2.
*/ public class ListAdapter extends RecyclerView.Adapter<ListAdapter.ViewHolder> {
private List<ListData> mDataList;
static class ViewHolder extends RecyclerView.ViewHolder{
ImageView imageAvatar;
TextView nameText;
TextView contentsText;
public ViewHolder(View itemView) {
super(itemView);
//注意这里可能需要import com.example.lenovo.myrecyclerview.R; 才能使用R.id
imageAvatar = (ImageView)itemView.findViewById(R.id.horizontalImageView);
nameText =(TextView) itemView.findViewById(R.id.horizontalTextViewName);
contentsText = (TextView)itemView.findViewById(R.id.horizontalTextViewContent); }
}
public ListAdapter(List<ListData> listDatas){
mDataList = listDatas;
} @Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_horizontal_list_view,
parent,false);
ViewHolder holder = new ViewHolder(view);
return holder;
} @Override
public void onBindViewHolder(ViewHolder holder, int position) {
ListData listData = mDataList.get(position);
holder.imageAvatar.setImageResource(listData.getImageView());
holder.nameText.setText(listData.getNameText());
holder.contentsText.setText(listData.getContentsText());
} @Override
public int getItemCount() {
return mDataList.size();
}
}

3.在RecyclerView 横排列列表布局 活动类中,将RecyclerView 排列方式修改成横向。

package com.example.lenovo.myrecyclerview;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView; import com.example.lenovo.myrecyclerview.RecyclerViewToolkit.ListAdapter;
import com.example.lenovo.myrecyclerview.RecyclerViewToolkit.ListData; import java.util.ArrayList;
import java.util.List; public class RecyclerViewActivity extends AppCompatActivity {
private List<ListData> listDatas = new ArrayList<>(); @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_recycler_view);
addingData();
RecyclerView recyclerView = (RecyclerView)findViewById(R.id.RecyclerView);
//在此处修改布局排列方向
LinearLayoutManager layoutManager = new LinearLayoutManager(this);
layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
recyclerView.setLayoutManager(layoutManager);
ListAdapter listAdapter = new ListAdapter(listDatas);
recyclerView.setAdapter(listAdapter);
}
public void addingData(){
ListData ace = new ListData(R.drawable.ace,"ace", "波特卡斯·D·艾斯:" +
"烧烧果实的前任能力者,绰号“火拳”,实力强大。");
listDatas.add(ace);
ListData arlong = new ListData(R.drawable.arlong,"arlong",
"恶龙海贼团:”由一群离开王下七武海之一甚平统治的鱼人所组成的海贼团,海贼船名为“鲨鱼˙斯帕布号”," +
"船头放置著和恶龙一样的锯齿状鼻子,由于总是到处上岸杀戮,成为恐怖和霸权的象征。");
listDatas.add(arlong);
ListData barbe_blanche = new ListData(R.drawable.barbe_blanche,"barbe_blanche",
"爱德华·纽盖特:外号“白胡子”。“四皇”之一(生前),白胡子海贼团的船长,实力极其强劲,被称为「世界最强男人」。" +
"能力是被誉为最强超人系的震震果实,武器为薙刀。");
listDatas.add(barbe_blanche);
//以下略。。。。。。。。。。 } }

运行效果:

android 开发 RecyclerView 横排列列表布局