Android L Developer Preview - ทดลองเล่น RecyclerView

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile "com.android.support:recyclerview-v7:+"
}

apply plugin: 'com.android.application'

android {
    compileSdkVersion 'android-L'
    buildToolsVersion "20.0.0"

    defaultConfig {
        applicationId "com.devahoy.hellorecyclerview"
        minSdkVersion 15
        targetSdkVersion 'L'
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile "com.android.support:recyclerview-v7:+"
}

package com.devahoy.hellorecyclerview;

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

import java.util.List;

public class CustomAdapter extends RecyclerView.Adapter<CustomAdapter.ViewHolder> {

    private List<Player> mPlayers;
    private Context mContext;

    public static class ViewHolder extends RecyclerView.ViewHolder {
        public TextView mName;
        public TextView mClub;

        public ViewHolder(View view) {
            super(view);

            mName = (TextView) view.findViewById(R.id.name);
            mClub = (TextView) view.findViewById(R.id.club);
        }
    }

    public CustomAdapter(Context context, List<Player> dataset) {
        mPlayers = dataset;
        mContext = context;
    }

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

        View view = LayoutInflater.from(mContext)
                .inflate(R.layout.recycler_view_row, parent, false);

        ViewHolder viewHolder = new ViewHolder(view);
        return viewHolder;
    }

    @Override
    public void onBindViewHolder(ViewHolder viewHolder, int position) {
        Player player = mPlayers.get(position);

        viewHolder.mName.setText(player.getName());
        viewHolder.mClub.setText(player.getClub());
    }

    @Override
    public int getItemCount() {
        return mPlayers.size();
    }
}

package com.devahoy.hellorecyclerview;

public class Player {
    private String name;
    private String club;

    public Player(String name, String club) {
        this.name = name;
        this.club = club;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getClub() {
        return club;
    }

    public void setClub(String club) {
        this.club = club;
    }
}

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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:orientation="horizontal"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <TextView android:layout_width="wrap_content"
              android:layout_height="wrap_content"
        android:id="@+id/name"
        android:textColor="#ffee1789"
        android:layout_marginRight="48dp" />

    <TextView android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:textColor="#ff0071ff"
              android:id="@+id/club" />
</LinearLayout>

public class MyActivity extends Activity {

    private RecyclerView mRecyclerView;
    private RecyclerView.Adapter mAdapter;
    private RecyclerView.LayoutManager mLayoutManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_my);

        mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);

        mRecyclerView.setHasFixedSize(true);

        mLayoutManager = new LinearLayoutManager(this);
        mRecyclerView.setLayoutManager(mLayoutManager);

        mAdapter = new CustomAdapter(this, initPlayer());
        mRecyclerView.setAdapter(mAdapter);
    }
}

private List<Player> initPlayer() {

    Player messi = new Player("Leonel Missi", "Barcelona");
    Player ronaldo = new Player("Cristiano Ronaldo", "Real Madrid");
    Player suarez = new Player("Luis Suarez", "Liverpool");

    List<Player> dataset = new ArrayList<Player>();

    dataset.add(messi);
    dataset.add(ronaldo);
    dataset.add(suarez);

    return dataset;
}

<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:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MyActivity">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_view"
        android:scrollbars="vertical"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

</RelativeLayout>