Android RecyclerView的基本用法

activity_main：

<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.support.v7.widget.RecyclerView
android:id="@+id/id_recyclerview"
android:divider="#ffff0000"
android:dividerHeight="10dp"
android:layout_width="match_parent"
android:layout_height="match_parent" />

</RelativeLayout>

item

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="50dp">

<TextView
android:id="@+id/text"
android:layout_width="match_parent"
android:layout_height="50dp"
android:gravity="center"
android:textColor="#000000"
android:text="1" />
</LinearLayout>

MainActivity

package com.example.administrator.recycledemo;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
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.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {
private List<String> data_list ;
private RecyclerView mRecyclerView;
private String[] content = {"12", "12", "12", "12", "12", "12", "12", "12", "12", "12", "12", "12",
"12", "12", "12", "12", "12", "12", "12", "12", "12", "12", "12"};
private HomeAdapter mAdapter;

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

initData();
mRecyclerView = (RecyclerView) findViewById(R.id.id_recyclerview);

/**
*注意  这里是设置横向或者纵向根据实际情况设置
*/

       LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
linearLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
mRecyclerView.setLayoutManager(linearLayoutManager);
mRecyclerView.setAdapter(mAdapter = new HomeAdapter());

}

protected void initData()
{
data_list = new ArrayList<String>();
for (int i = 0; i < content.length; i++)
{

data_list.add( content[i]);
}
}

class HomeAdapter extends RecyclerView.Adapter<HomeAdapter.MyViewHolder>
{

@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType)
{
MyViewHolder holder = new MyViewHolder(LayoutInflater.from(
MainActivity.this).inflate(R.layout.item, parent,
false));
return holder;
}

@Override
public void onBindViewHolder(MyViewHolder holder, int position)
{
holder.tv.setText(data_list.get(position));
}

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

class MyViewHolder extends RecyclerView.ViewHolder
{

TextView tv;
public MyViewHolder(View view)
{
super(view);
tv = (TextView) view.findViewById(R.id.text);
}
}
}

}