RecyclerView基本用法

1. 在gradle.build的dependencies中添加RecyclerView需要的包

compile ‘com.android.support:cardview-v7:23.4.0‘compile ‘com.android.support:recyclerview-v7:23.4.0‘

添加完后记得要Sync Gradle

2. 在布局文件中添加控件RecyclerView.

<android.support.v7.widget.RecyclerView    android:layout_width="match_parent"    android:layout_height="wrap_content">

</android.support.v7.widget.RecyclerView>

3.在Activity中找到RecyclerView并设置LayoutManager和Adapter

RecyclerView rv;

NewsAdapter adapter;

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    rv = (RecyclerView) findViewById(R.id.rv);    rv.setLayoutManager(new LinearLayoutManager(this));    rv.setAdapter(adapter);

}

4. 写Adapter

class NewsAdapter extends RecyclerView.Adapter<NewsAdapter.VH> {    String[] data = {"a","b","c","d","e"};

　　//创建ViewHoler    @Override    public VH onCreateViewHolder(ViewGroup parent, int viewType) {        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.news_item,parent,false);        VH vh = new VH(view);        return vh;    }

　　//数据绑定    @Override    public void onBindViewHolder(VH holder, int position) {        holder.title.setText(data[position]);

    }

    @Override    public int getItemCount() {        return data.length;    }

　　//内部类VH 保存所有view    class VH extends RecyclerView.ViewHolder {        public TextView title;        public VH(View itemView) {            super(itemView);            title = (TextView)itemView.findViewById(R.id.title);        }    }

}