RecyclerView的用法

MainActivity的代码如下：

package com.example.zhangmeng.recyclerview;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;

public class MainActivity extends AppCompatActivity {
    private RecyclerView rv;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        rv=new RecyclerView(this);
        setContentView(rv);
        rv.setLayoutManager(new LinearLayoutManager(this));
        rv.setAdapter(new MyAdapter());
    }

}

　　MyAdapter:

package com.example.zhangmeng.recyclerview;

import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

/**
 * Created by zhangmeng on 2016/9/15.
 */
class MyAdapter extends RecyclerView.Adapter {


    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        return new ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item,null));
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        ViewHolder vh = (ViewHolder) holder;
        vh.getTv_title().setText("Title"+position);
        vh.getTv_content().setText("content"+position);

    }

    @Override
    public int getItemCount() {
        return 10;
    }
}

class ViewHolder extends RecyclerView.ViewHolder {
    private TextView tv_title;
    private TextView tv_content;
    public ViewHolder(View itemView) {
        super(itemView);
        tv_title=(TextView) itemView.findViewById(R.id.textView_title);
        tv_content=(TextView) itemView.findViewById(R.id.textView_content);
    }

    public TextView getTv_title() {
        return tv_title;
    }
    public TextView getTv_content() { return tv_content; }


}

Activitylayout:

<?xml version="1.0" encoding="utf-8"?>
<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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.zhangmeng.recyclerview.MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!" />
</RelativeLayout>

Itemlayout:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
                android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Large Text"
        android:id="@+id/textView_title"
        android:layout_gravity="center_horizontal" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="Small Text"
        android:id="@+id/textView_content" />
</LinearLayout>