萬能ListView Adapter

//抽象封裝ViewHolder

public class MyViewHolder {

private SparseArray<View> mViews;

private View mconvertView;

public MyViewHolder(Context context, int layoutId) {

super();

mViews = new SparseArray<View>();

this.mconvertView = View.inflate(context, layoutId, null);

mconvertView.setTag(this);

}

public static MyViewHolder getHolder(Context context, View convertView,

int layoutId) {

if (convertView == null) {

return new MyViewHolder(context, layoutId);

} else {

return (MyViewHolder) convertView.getTag();

}

}

public View getView(int ViewID) {

View view = mViews.get(ViewID);

if (view == null) {

view = mconvertView.findViewById(ViewID);

mViews.put(ViewID, view);

}

return view;

}

public View getConvertView() {

return mconvertView;

}

}

//adapter

public abstract class MyAdapter<T> extends BaseAdapter {

private Context context;

private ArrayList<T> data;

private int layoutId;

public MyAdapter(Context context, ArrayList<T> data, int layoutId) {

super();

this.context = context;

this.data = data;

this.layoutId = layoutId;

}

@Override

public int getCount() {

// TODO Auto-generated method stub

return data.size();

}

@Override

public T getItem(int arg0) {

// TODO Auto-generated method stub

return data.get(arg0);

}

@Override

public long getItemId(int arg0) {

// TODO Auto-generated method stub

return arg0;

}

@Override

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

MyViewHolder holder = MyViewHolder.getHolder(context, convertView,

layoutId);

convert(holder, getItem(position));

return holder.getConvertView();

}

public abstract void convert(MyViewHolder holder, T bean);

}

//使用方法

list_view = (ListView) findViewById(R.id.list_view);

list_view.setAdapter(new MyAdapter<Bean>(MainActivity.this, data,

R.layout.item) {

@Override

public void convert(MyViewHolder holder, Bean bean) {

TextView title = (TextView) holder.getView(R.id.title);

title.setText(bean.getTitle());

TextView desc = (TextView) holder.getView(R.id.desc);

desc.setText(bean.getDesc());

TextView time = (TextView) holder.getView(R.id.time);

time.setText(bean.getTime());

TextView phone = (TextView) holder.getView(R.id.phone);

phone.setText(bean.getPhone());

}

});