RecyclerView+RecyclerView.Adapter+RecyclerView.ViewHolder的使用

/**
* RecycleView+recycleView.Adapter+RecycleView.ViewHolder
*/
public class RecycleViewActivity extends AppCompatActivity {
private List<DataModel> models;
private RecyclerView mRecyclerView;
private RecycleAdapter adapter;

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

/**
* 初始化
*/
private void initView() {
getData();
mRecyclerView = (RecyclerView) findViewById(R.id.rv_container);
mRecyclerView.setLayoutManager(new GridLayoutManager(this,3));
adapter = new RecycleAdapter(models);
mRecyclerView.setAdapter(adapter);
}

/**
* 构建模拟数据
*/
private void getData() {
models = new ArrayList<>();
DataModel model;
for (int i = 0; i < 20; i++) {
model = new DataModel("列表标题" + i, "说明文字" + i);
models.add(model);
}
}
}

/**
* RecyclerView.Adapter
* 三个方法，外加一个构造方法
* Created by Devin Chen on 2016/12/17.
*/

public class RecycleAdapter extends RecyclerView.Adapter<RecycleViewHolder> implements View.OnClickListener {
private Context context;
private List<DataModel> dataModels;

public RecycleAdapter(List<DataModel> dataModels) {
this.dataModels = dataModels;
}

@Override
public RecycleViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
this.context = parent.getContext();
View view = LayoutInflater.from(context).inflate(R.layout.item_data_model, null);
//RecyclerView没有setOnItemClickListener监听，所以可以在这里写，也可以在ViewHolder里面写
//但是这里不能获取position
//所以可以在这里把view交给一个属性，在onBindViewHolder里面去设置监听
view.setOnClickListener(this);
return new RecycleViewHolder(context, view);
}

@Override
public void onBindViewHolder(RecycleViewHolder holder, int position) {
holder.setItem(dataModels.get(position));
holder.refreshView();
}

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

@Override
public void onClick(View v) {

}
}

/**
* RecyclerView.ViewHolder
* 跟BaseAdapter的ViewHolder写法基本一样
* Created by Devin Chen on 2016/12/17.
*/

public class RecycleViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
private Context context;
private ImageView icon;
private TextView title,desc;
private DataModel item;

public RecycleViewHolder(Context context,View itemView) {
super(itemView);
this.context=context;
icon= (ImageView) itemView.findViewById(R.id.img_icon);
title= (TextView) itemView.findViewById(R.id.txt_title);
desc= (TextView) itemView.findViewById(R.id.txt_desc);
//RecyclerView没有setOnItemClickListener监听，所以可以在这里写
//用getAdapterPosition()可以获取position
itemView.setOnClickListener(this);
}

public void setItem(DataModel item) {
this.item = item;
}

public void refreshView(){
icon.setImageResource(R.mipmap.ic_launcher);
title.setText(item.getTitle());
desc.setText(item.getDesc());
}

@Override
public void onClick(View v) {

}
}