ListView、GridView万能适配器

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

import java.util.List;

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);

public void setData(List<T> dataList)
{
if (null != this.mDatas)
{
if (null == dataList || dataList.isEmpty())
{
this.mDatas.clear();
}
else
{
this.mDatas=dataList;
}
}

}

}

ViewHolder.java

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
*/
@SuppressWarnings("unchecked")
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;
}

}