• 1.什么是RecyclerView
• 2.使用RecyclerView
  • 2.1.activity_main.xml布局
  • 2.2.MainAcitivty
  • 2.3.MyAdapter
    • 2.3.1.onCreateViewHolder
    • 2.3.2.onBindViewHolder
  • 2.4.点击item时的响应函数

1.什么是RecyclerView

RecyclerView是一个比listview更灵活的控件，推荐用于替代listview

2.使用RecyclerView

Demo代码下载
效果图：

2.1.activity_main.xml布局

在activity_main中加入RecyclerView

<RelativeLayout 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=".MainActivity">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycle_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:drawSelectorOnTop="false" />

</RelativeLayout>

2.2.MainAcitivty

在MainActivity中对该View进行设置

        mRecyclerView = (RecyclerView) findViewById(R.id.recycle_view);
        //设置RecyclerView垂直滚动
        LinearLayoutManager llm = new LinearLayoutManager(this);
        llm.setOrientation(LinearLayoutManager.VERTICAL);
        mRecyclerView.setLayoutManager(llm);
        //初始化数据
        initData();
        //MyAdapter是一个继承自RecyclerView.Adapter的适配器
        mAdapter = new MyAdapter(list);
        mRecyclerView.setAdapter(mAdapter);

2.3.MyAdapter

MyAdapter是一个继承自RecyclerView.Adapter的适配器。继承RecyelerView.Adapter需要重载三个函数：

public int getItemCount();//获取Adapter中数据的数量
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i);//为每个RecyelerView中的每个Item生成一个View
public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int i);//设置item中的数据

2.3.1.onCreateViewHolder

onCreateViewHolder返回一个RecyclerView.ViewHolder，其中封装了一个view，该view即为item的视图

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
        View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.recycle_item_layout, null);
        LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        view.setLayoutParams(lp);
        return new PersonViewHolder(view);
    }

recycle_item_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rootView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#000000"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin">

    <TextView
        android:id="@+id/tvAge"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#00ff00" />

    <TextView
        android:id="@+id/tvName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#ff00ff" />
</LinearLayout>

这里personView是一个继承自RecyclerView.ViewHolder的类

    class PersonViewHolder extends RecyclerView.ViewHolder {
        public TextView tvAge;
        public TextView tvName;
        public int position;

        public PersonViewHolder(View itemView) {
            super(itemView);

            tvAge = (TextView) itemView.findViewById(R.id.tvAge);
            tvName = (TextView) itemView.findViewById(R.id.tvName);
        }
    }

2.3.2.onBindViewHolder

数据填充，为第i个item填充响应的数据。这里的personList为MyAdapter的成员函数，一个含有Person数据的List，用于保存要在各item中显示的数据。通过MyAdapter的构造函数完成初始化：

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int i) {
        PersonViewHolder holder = (PersonViewHolder) viewHolder;
        holder.position = i;
        Person person = personList.get(i);
        holder.tvAge.setText(person.getAge() + "");
        holder.tvName.setText(person.getName());
    }

2.4.点击item时的响应函数

可在PersonViewHolder中设置

      public PersonViewHolder(View itemView) {
            super(itemView);

            tvAge = (TextView) itemView.findViewById(R.id.tvAge);
            tvName = (TextView) itemView.findViewById(R.id.tvName);

            View rootView = itemView.findViewById(R.id.rootView);
            rootView.setOnClickListener(XXX);
            rootView.setOnLongClickListener(XXX);
        }

参考链接：
使用RecyclerView替代ListView