Android常用控件之RecyclerView

目录：android.support.v7.widget.RecyclerView

xml布局：

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

代码使用：

public class MainActivity extends AppCompatActivity {    private RecyclerView mRecyclerView;    private RecyclerView.Adapter mAdapter;    private RecyclerView.LayoutManager mLayoutManager;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initView();    }    private void initView() {        mRecyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);        // 设置布局管理器        mLayoutManager = new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false);        mRecyclerView.setLayoutManager(mLayoutManager);        // 设置adapter        mRecyclerView.setAdapter(mAdapter = new RvAdapter(getData()));    }    private List getData() {        List data = new ArrayList<>();        String temp = " item";        for(int i = 0; i < 20; i++) {            data.add(i + temp);        }        return data;    }}

使用的适配器：

public class RvAdapter extends RecyclerView.Adapter{    private List mData;    public RvAdapter(List data) {        this.mData = data;    }    public void updateData(List data) {        this.mData = data;        notifyDataSetChanged();    }    @Override    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        return new ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_icon_text, parent, false));    }    @Override    public void onBindViewHolder(ViewHolder holder, int position) {        holder.processData(position);    }    @Override    public int getItemCount() {        return mData == null ? 0 : mData.size();    }    public class ViewHolder extends RecyclerView.ViewHolder {        private TextView tv_title;        public ViewHolder(View itemView) {            super(itemView);            tv_title = (TextView) itemView.findViewById(R.id.tv_title);        }        private void processData(int position) {            tv_title.setText(mData.get(position));        }    }}

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