adapter 使用butterknife的简单封装

###############原来写listview / recyclerView 适配器, 都是使用的这种方式：
https://github.com/hongyangAndroid/baseAdapter

###############在butterknife出来之前这种方式堪称完美，但是随着butterknife的出现，原来那种写适配器的方式渐渐的被摒弃了。

原因无外乎以下两点：

1.butterknife实在太好用了，配合android studio插件，一键生成，那种感觉无与伦比的爽。

2.鸿洋的这种方式也有小缺陷， 每次对viewHolder里面的view操作的时候，要么findViewById实例化一个，要么 传递id进去。

.
.

比如设置TextView:

holder.setText(R.id.tv, "文字");

所以针对butterknife，自己对如上的适配器做了不小的改动，由于本人水平有限，如果你觉得哪里不合适，或者觉得哪里可以改进的地方，尽管提意见，大家互相学习。下面贴上代码:

.
.

ListView的adapter:

使用起来也很简单：(其中xxViewHolder 必须继承BaseViewHolder)

 adapter = new MBaseAdapter<Bean, xxViewHolder>() {
           @Override
           public xxViewHolder getHolder(View convertView, int type) {
               return new xxViewHolder(convertView);
           }

           @Override
           public void getItemView(xxViewHolder holder, Bean item) {
                holder.text.setText(item.text);
                holder.image.loadImage(item.getUrl());
           }
       }

封装的代码：

/**
 * listView适配器的基类
 *  单种布局的
 * @param <T>
 * @param <VH>
 */

public abstract class MBaseAdapter<T, VH extends BaseViewHolder> extends BaseAdapter {


    protected Context mContext;
    
    protected List<T> list;
    
    protected int layoutId;
    
    public MBaseAdapter(List<T> list, Context context, int layoutId)
    {
        mContext = context;
        this.list = list;
        this.layoutId = layoutId;
    }

    public List<T> getList(){
        return list;
    }
    
    @Override
    public int getCount() {
        return null != list ? list.size() : 0;
    }

    @Override
    public T getItem(int position) {
        return list.get(position);
    }

    @Override
    public long getItemId(int id) {
        return id;
    }

    @Override
    @SuppressWarnings("unchecked")
    public View getView(int position, View convertView, ViewGroup parent)
    {
        VH holder;

        if (convertView == null) {

            convertView = View.inflate(mContext, layoutId, null);;
            holder = getHolder(convertView, getItemViewType(position));
            convertView.setTag(holder);
        } else {
            holder = (VH) convertView.getTag();
        }
        holder.position = position;
        getItemView(holder, list.get(position));

        return convertView;
    }

    public abstract VH getHolder(View convertView, int type);
    public abstract void getItemView(VH holder, T item);
}

/**
 * 支持多种类型的adapter
 * @author deadline
 * @time 2016/10/17
 */
public abstract class MultiBaseAdapter<T> extends MBaseAdapter<T, BaseViewHolder> implements MultiSupport<T>{

    public MultiBaseAdapter(List<T> list, Context context) {
        super(list, context, -1);
    }

    @Override
    public int getItemViewType(int position) {

        return getItemType(position, list.get(position));
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {

        BaseViewHolder holder;
        int type = getItemViewType(position);
        int layoutId = getLayoutId(type);

        if (convertView == null) {
            convertView = View.inflate(mContext, layoutId, null);
            holder = getHolder(convertView, type);
            convertView.setTag(holder);
        } else {
            holder = (BaseViewHolder) convertView.getTag();
            if (holder.type != type) {
                convertView = View.inflate(mContext, layoutId, null);
                holder = getHolder(convertView, type);
                convertView.setTag(holder);
            }
        }
        holder.position = position;
        getItemView(holder, list.get(position));

        return convertView;
    }
}

/**
 * 多种类型支持接口
 * @author deadline
 * @time 2016/10/17
 */
public interface MultiSupport<T> {

    int getViewTypeCount();

    int getLayoutId(int viewType);

    int getItemType(int position, T item);
}

BaseViewHolder 自定义的viewHodler都要继承该类

public class BaseViewHolder {

    public int type;

    public int position;

    public BaseViewHolder(View view) {
        ButterKnife.bind(this, view);
    }

    /**
     * 多种类型
     * @param view
     * @param type
     */
    public BaseViewHolder(View view, int type) {
        this.type = type;
        ButterKnife.bind(this, view);
    }
}

RecyclerView的适配器

public abstract class MRecyclerBaseAdapter<T, VH extends RecyclerView.ViewHolder> extends RecyclerView.Adapter<VH> {

    protected Context mContext;

    protected List<T> list;

    public MRecyclerBaseAdapter(Context mContext, List<T> list) {

        this.list = list;

        this.mContext = mContext;
    }

    @Override
    public VH onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(mContext).inflate(getLayoutId(), null);
        return getHolder(view);
    }

    @Override
    public void onBindViewHolder(final VH holder, final int position) {

        getItemView(holder, list.get(position));

        RxView.clicks(holder.itemView).throttleFirst(500, TimeUnit.MILLISECONDS)
                .subscribe(new Action1<Void>() {
                    @Override
                    public void call(Void aVoid) {
                        OnItemClick(holder, list.get(position), position);
                    }
                });

        RxView.longClicks(holder.itemView).throttleFirst(500, TimeUnit.MILLISECONDS)
                .subscribe(new Action1<Void>() {
                    @Override
                    public void call(Void aVoid) {
                        OnItemLongClick(holder, list.get(position), position);
                    }
                });

    }

    public abstract void getItemView(VH holder, T item);

    public abstract int getLayoutId();

    public abstract VH getHolder(View convertView);

    public void OnItemClick(VH holder, T item, int position) {}

    public void OnItemLongClick(VH holder, T item, int position) {}

    public List<T> getList() {
        return list;
    }

    @Override
    public int getItemCount() {
        return list != null ? list.size() : 0;
    }