万能适配器的一些问题

不用万能适配器volley都能搞定
如果用万能适配器则不能用volley（因为万能适配器里边有自己的settag）可以用NUtils在
NUtils里边自定义三级缓存每次设图片时都去访问三级缓存

package com.example.wannengadapter;

import java.util.List;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;

public abstract class CommonAdapter<T> extends BaseAdapter {
    protected Context mContext;
    protected List<T> mDatas;
    protected LayoutInflater mInflater;
    private int layoutId;

    public CommonAdapter(Context context, List<T> datas, int layoutId) {
        this.mContext = context;
        mInflater = LayoutInflater.from(context);
        this.mDatas = datas;
        this.layoutId = layoutId;
    }

    @Override
    public int getCount() {
        return mDatas.size();
    }

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

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

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder = ViewHolder.get(mContext, convertView, parent,
                layoutId, position);
        convert(holder, getItem(position));
        return holder.getConvertView();
    }

    public abstract void convert(ViewHolder holder, T t);

}

package com.example.wannengadapter;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;

import java.util.List;

public abstract class MultiItemCommonAdapter<T> extends CommonAdapter<T> {

    protected MultiItemTypeSupport<T> mMultiItemTypeSupport;

    public MultiItemCommonAdapter(Context context, List<T> datas,
            MultiItemTypeSupport<T> multiItemTypeSupport) {
        super(context, datas, -1);
        mMultiItemTypeSupport = multiItemTypeSupport;
    }

    @Override
    public int getViewTypeCount() {
        if (mMultiItemTypeSupport != null)
            return mMultiItemTypeSupport.getViewTypeCount();
        return super.getViewTypeCount();
    }

    @Override
    public int getItemViewType(int position) {
        if (mMultiItemTypeSupport != null)
            return mMultiItemTypeSupport.getItemViewType(position,
                    mDatas.get(position));
        return super.getItemViewType(position);

    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (mMultiItemTypeSupport == null)
            return super.getView(position, convertView, parent);

        int layoutId = mMultiItemTypeSupport.getLayoutId(position,
                getItem(position));
        ViewHolder viewHolder = ViewHolder.get(mContext, convertView, parent,
                layoutId, position);
        convert(viewHolder, getItem(position));
        return viewHolder.getConvertView();
    }

}

package com.example.wannengadapter;

public interface MultiItemTypeSupport<T> {
    int getLayoutId(int position, T t);

    int getViewTypeCount();

    int getItemViewType(int postion, T t);
}

package com.example.wannengadapter;

import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.text.util.Linkify;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.AlphaAnimation;
import android.widget.Checkable;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RatingBar;
import android.widget.TextView;

public class ViewHolder {
    private SparseArray<View> mViews;
    private int mPosition;
    private View mConvertView;
    private Context mContext;
    private int mLayoutId;

    public ViewHolder(Context context, ViewGroup parent, int layoutId,
            int position) {
        mContext = context;
        mLayoutId = layoutId;
        this.mPosition = position;
        this.mViews = new SparseArray<View>();
        mConvertView = LayoutInflater.from(context).inflate(layoutId, parent,
                false);
        mConvertView.setTag(this);
    }

    public static ViewHolder get(Context context, View convertView,
            ViewGroup parent, int layoutId, int position) {
        if (convertView == null) {
            return new ViewHolder(context, parent, layoutId, position);
        } else {
            ViewHolder holder = (ViewHolder) convertView.getTag();
            holder.mPosition = position;
            return holder;
        }
    }

    public int getPosition() {
        return mPosition;
    }

    public int getLayoutId() {
        return mLayoutId;
    }

    /**
     * 通过viewId获取控件
     * 
     * @param viewId
     * @return
     */
    public <T extends View> T getView(int viewId) {
        View view = mViews.get(viewId);
        if (view == null) {
            view = mConvertView.findViewById(viewId);
            mViews.put(viewId, view);
        }
        return (T) view;
    }

    public View getConvertView() {
        return mConvertView;
    }

    /**
     * 设置TextView的值
     * 
     * @param viewId
     * @param text
     * @return
     */
    public ViewHolder setText(int viewId, String text) {
        TextView tv = getView(viewId);
        tv.setText(text);
        return this;
    }

    public ViewHolder setImageResource(int viewId, int resId) {
        ImageView view = getView(viewId);
        view.setImageResource(resId);
        return this;
    }

    public ViewHolder setImageBitmap(int viewId, Bitmap bitmap) {
        ImageView view = getView(viewId);
        view.setImageBitmap(bitmap);
        return this;
    }

    public ViewHolder setImageDrawable(int viewId, Drawable drawable) {
        ImageView view = getView(viewId);
        view.setImageDrawable(drawable);
        return this;
    }

    public ViewHolder setBackgroundColor(int viewId, int color) {
        View view = getView(viewId);
        view.setBackgroundColor(color);
        return this;
    }

    public ViewHolder setBackgroundRes(int viewId, int backgroundRes) {
        View view = getView(viewId);
        view.setBackgroundResource(backgroundRes);
        return this;
    }

    public ViewHolder setTextColor(int viewId, int textColor) {
        TextView view = getView(viewId);
        view.setTextColor(textColor);
        return this;
    }

    public ViewHolder setTextColorRes(int viewId, int textColorRes) {
        TextView view = getView(viewId);
        view.setTextColor(mContext.getResources().getColor(textColorRes));
        return this;
    }

    @SuppressLint("NewApi")
    public ViewHolder setAlpha(int viewId, float value) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            getView(viewId).setAlpha(value);
        } else {
            // Pre-honeycomb hack to set Alpha value
            AlphaAnimation alpha = new AlphaAnimation(value, value);
            alpha.setDuration(0);
            alpha.setFillAfter(true);
            getView(viewId).startAnimation(alpha);
        }
        return this;
    }

    public ViewHolder setVisible(int viewId, boolean visible) {
        View view = getView(viewId);
        view.setVisibility(visible ? View.VISIBLE : View.GONE);
        return this;
    }

    public ViewHolder linkify(int viewId) {
        TextView view = getView(viewId);
        Linkify.addLinks(view, Linkify.ALL);
        return this;
    }

    public ViewHolder setTypeface(Typeface typeface, int... viewIds) {
        for (int viewId : viewIds) {
            TextView view = getView(viewId);
            view.setTypeface(typeface);
            view.setPaintFlags(view.getPaintFlags() | Paint.SUBPIXEL_TEXT_FLAG);
        }
        return this;
    }

    public ViewHolder setProgress(int viewId, int progress) {
        ProgressBar view = getView(viewId);
        view.setProgress(progress);
        return this;
    }

    public ViewHolder setProgress(int viewId, int progress, int max) {
        ProgressBar view = getView(viewId);
        view.setMax(max);
        view.setProgress(progress);
        return this;
    }

    public ViewHolder setMax(int viewId, int max) {
        ProgressBar view = getView(viewId);
        view.setMax(max);
        return this;
    }

    public ViewHolder setRating(int viewId, float rating) {
        RatingBar view = getView(viewId);
        view.setRating(rating);
        return this;
    }

    public ViewHolder setRating(int viewId, float rating, int max) {
        RatingBar view = getView(viewId);
        view.setMax(max);
        view.setRating(rating);
        return this;
    }

    public ViewHolder setTag(int viewId, Object tag) {
        View view = getView(viewId);
        view.setTag(tag);
        return this;
    }

    public ViewHolder setTag(int viewId, int key, Object tag) {
        View view = getView(viewId);
        view.setTag(key, tag);
        return this;
    }

    public ViewHolder setChecked(int viewId, boolean checked) {
        Checkable view = (Checkable) getView(viewId);
        view.setChecked(checked);
        return this;
    }

    /**
     * 关于事件的
     */
    public ViewHolder setOnClickListener(int viewId,
            View.OnClickListener listener) {
        View view = getView(viewId);
        view.setOnClickListener(listener);
        return this;
    }

    public ViewHolder setOnTouchListener(int viewId,
            View.OnTouchListener listener) {
        View view = getView(viewId);
        view.setOnTouchListener(listener);
        return this;
    }

    public ViewHolder setOnLongClickListener(int viewId,
            View.OnLongClickListener listener) {
        View view = getView(viewId);
        view.setOnLongClickListener(listener);
        return this;
    }

}

加入以上四个类  可以都加在同一个包下  

例子：

package com.zhy.quickdev.adapter.sample.adapter;

import android.content.Context;

import com.zhy.quickdev.adapter.MultiItemCommonAdapter;
import com.zhy.quickdev.adapter.MultiItemTypeSupport;
import com.zhy.quickdev.adapter.R;
import com.zhy.quickdev.adapter.ViewHolder;
import com.zhy.quickdev.adapter.sample.bean.ChatMessage;

import java.util.List;

/**
 * Created by zhy on 15/9/4.
 */
public class ChatAdapter extends MultiItemCommonAdapter<ChatMessage>
{
    public ChatAdapter(Context context, List<ChatMessage> datas)
    {
        super(context, datas, new MultiItemTypeSupport<ChatMessage>()
        {
            @Override
            public int getLayoutId(int position, ChatMessage msg)
            {
                if (msg.isComMeg())
                {
                    return R.layout.main_chat_from_msg;
                }
                return R.layout.main_chat_send_msg;
            }

            @Override
            public int getViewTypeCount()
            {
                return 2;
            }
            @Override
            public int getItemViewType(int postion, ChatMessage msg)
            {
                if (msg.isComMeg())
                {
                    return ChatMessage.RECIEVE_MSG;
                }
                return ChatMessage.SEND_MSG;
            }
        });
    }

    @Override
    public void convert(ViewHolder holder, ChatMessage chatMessage)
    {

        switch (holder.getLayoutId())
        {
            case R.layout.main_chat_from_msg:
                holder.setText(R.id.chat_from_content, chatMessage.getContent());
                holder.setText(R.id.chat_from_name, chatMessage.getName());
                holder.setImageResource(R.id.chat_from_icon, chatMessage.getIcon());
                break;
            case R.layout.main_chat_send_msg:
                holder.setText(R.id.chat_send_content, chatMessage.getContent());
                holder.setText(R.id.chat_send_name, chatMessage.getName());
                holder.setImageResource(R.id.chat_send_icon, chatMessage.getIcon());
                break;
        }
    }
}