RecyclerView通用适配器

目录：

1 单一类型数据展示
2 多种类型数据展示
3 添加setOnItemClickListener监听
4 添加Header、Footer
5 封装成通用的方式

1 单一数据展示：

Google一下，一堆堆的，就不再制造垃圾了。

2 多种类型数据展示：

由于最后需要封装成通用的方式，这一步还是要写的。

1 定义两种ViewHolder:

// 普通ViewHolder
public static class ViewHolderNormal
extends RecyclerView.ViewHolder {
public TextView mTextView;
public View layout;


public ViewHolderNormal(View v) {
super(v);
            layout = v;
            mTextView = (TextView) v.findViewById(R.id.tv);
        }
    }

//带有RadioButton的ViewHolder
public static class ViewHolderRadioButton extends RecyclerView.ViewHolder {
public TextView mTextView;
public RadioButton radioButton;
public View layout;

public ViewHolderRadioButton(View itemView) {
super(itemView);
            layout = itemView;
            mTextView = (TextView) itemView.findViewById(R.id.tv);
            radioButton = (RadioButton) itemView.findViewById(R.id.radio);
        }
}

2 重写：getItemViewType

     @Override
    public int getItemViewType(int position) {
int type = 1;
if (position % 2 == 0) {
type = 2;
        }
        return type;
    }

3 重写：onCreateViewHolder：

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        RecyclerView.ViewHolder holder = null;
if (viewType == 1) {
            View view = LayoutInflater.from(context).inflate(R.layout.main_shop_item, parent, false);
            holder = new ViewHolderNormal(view);
        } else if (viewType == 2) {
            View view = LayoutInflater.from(context).inflate(R.layout.main_shop_item_2, parent, false);
            holder = new ViewHolderRadioButton(view);
        }

return holder;
    }

4 重写onBindViewHolder：

 @Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
if (holder instanceof ViewHolderNormal){
            ViewHolderNormal holderNormal = (ViewHolderNormal)holder;
            WebInfoBean bean = list.get(position);
            StringUtil.SetTextView(bean.name, holderNormal.mTextView);
            holderNormal.layout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
                    onItemClickListener.onItemClick(v, position);
                }
            });
        }else if (holder instanceof ViewHolderRadioButton){
            ViewHolderRadioButton holderRadioButton = (ViewHolderRadioButton)holder;
            WebInfoBean bean = list.get(position);
            StringUtil.SetTextView(bean.name,holderRadioButton.mTextView);
            holderRadioButton.radioButton.setChecked(true);
        }

    }

3 添加setOnItemClickListener监听：

//定义监听回调接口
public interface OnItemClickListener {
void onItemClick(View view, int position);
}
//对外提供设置接口方法
public void setOnItemClickListener(OnItemClickListener listener) {
this.onItemClickListener = listener;
}

//在onBindViewHolder中添加监听，参考上面onBindViewHolder中代码


//在Activity初始化中调用：
 adapter.setOnItemClickListener(new ShopAdapter.OnItemClickListener() {
            @Override
public void onItemClick(View view, int position) {
                LogUtil.d("positon:" + position);
            }
});

4 添加Header：

http://www.tuicool.com/articles/qMnAfen

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