主界面布局：
<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/recyclerview"
android:layout_width="match_parent"
android:layout_height="80dp"
android:layout_centerVertical="true"
android:background="@android:color/transparent"
android:scrollbars="none" />
</RelativeLayout>
Item布局：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="120dp"
android:layout_height="120dp" >
<ImageView
android:id="@+id/iv_image"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:scaleType="centerCrop" />
</RelativeLayout>
RecyclerView的数据适配器，MyAdapter.java
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
private int[] mDataset; // 外面传入的数据
public static class ViewHolder extends RecyclerView.ViewHolder {
ImageView mImageView;
// TODO Auto-generated method stub
public ViewHolder(View v) {
super(v);
}
}
public MyAdapter(int[] mDataset) {
this.mDataset = mDataset;
}
/**
* 获取总的条目数量
*/
@Override
public int getItemCount() {
// TODO Auto-generated method stub
return mDataset.length;
}
/**
* 创建ViewHolder
*/
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
// TODO Auto-generated method stub
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_recycleview, parent, false);
ViewHolder holder = new ViewHolder(v);
holder.mImageView = (ImageView) v.findViewById(R.id.iv_image);
return holder;
}
/**
* 将数据绑定到ViewHolder上
*/
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
// TODO Auto-generated method stub
holder.mImageView.setImageResource(mDataset[position]);
}
}最后，就在Activity里使用这个RecyclerView，MainActivity.java
public class MainActivity extends Activity {
/** RecyclerView对象 */
private RecyclerView recyclerView;
/** 图片资源 */
private int[] mDataset;
/** 数据适配器 */
private MyAdapter mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
// 初始化图片数据
mDataset = new int[] { R.drawable.a, R.drawable.b, //
R.drawable.c, R.drawable.d, R.drawable.e, //
R.drawable.f, R.drawable.g, R.drawable.h, R.drawable.i };
// 设置布局管理器
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
linearLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
recyclerView.setLayoutManager(linearLayoutManager);
// 设置适配器
mAdapter = new MyAdapter(mDataset);
recyclerView.setAdapter(mAdapter);
}
}