类似QQ好友分组栏

package com.example.qq;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.text.method.KeyListener;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends ListActivity {
private final int VIEW_TYPE_COUNT = 2;
private final String DATA = "data";
private final String TYPE = "type";
private final int GROUP = -2;
private final int ITEM = -3;
private ArrayList<HashMap<String, Object>> items = null;

protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ListView listView = this.getListView();
ArrayAdapter adapter = new MyAdapter(this, -1);
items = new ArrayList<HashMap<String, Object>>();
listView.setAdapter(adapter);
String[] str = { "1月", "2月", "3月","4月","5月","6月","7月","8月","9月","10月","11月","12月" };
int[] intt={31,28,31,30,31,30,31,31,30,31,30,31};
int sum=0;
for (int i = 0; i < str.length; i++) {
HashMap<String, Object> group_map = new HashMap<String, Object>();
group_map.put(TYPE, GROUP);
group_map.put(DATA, str[i]);
items.add(group_map);
for (int j = 0; j < intt[i]; j++) {
HashMap<String, Object> data_map = new HashMap<String, Object>();
data_map.put(TYPE, ITEM);
data_map.put(DATA,  j+1+"号");
items.add(data_map);
}

}
}

private class MyAdapter extends ArrayAdapter {
private LayoutInflater inflater = null;

public MyAdapter(Context context, int resource) {
super(context, resource);
inflater = LayoutInflater.from(context);
}

public int getCount() {
return items.size();
}

@Override
public Object getItem(int position) {
HashMap<String, Object> map = items.get(position);
return map.get(DATA);
}

// 返回的id可以自己定制。
@Override
public long getItemId(int position) {
return position;
}

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

int type = getItemViewType(position);

// 根据不同的view type加载不同的布局文件。
switch (type) {
case GROUP:
convertView = inflater.inflate(android.R.layout.simple_list_item_2, null);
TextView tv1 = (TextView) convertView.findViewById(android.R.id.text1);
tv1.setText("2015年");
tv1.setBackgroundColor(Color.RED);
TextView tv2 = (TextView) convertView.findViewById(android.R.id.text2);
tv2.setText(getItem(position) + "");
tv2.setBackgroundColor(Color.GRAY);
break;
case ITEM:
convertView = inflater.inflate(android.R.layout.simple_list_item_1, null);
TextView tv = (TextView) convertView
.findViewById(android.R.id.text1);
tv.setText(getItem(position) + "");
tv.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {

}
});
break;
}

return convertView;
}

// 解析view type。
// view type值是我们事先埋入到items数据集中的字段值。
// 注意!此处返回的值不要大于getViewTypeCount()的返回值。
@Override
public int getItemViewType(int position) {
HashMap<String, Object> map = items.get(position);
return (Integer) map.get(TYPE);
}

// 在本例中共计有2个不同类型的view
// android.R.layout.simple_list_item_1 和
// android.R.layout.simple_list_item_1.
@Override
public int getViewTypeCount() {
return VIEW_TYPE_COUNT;
}

}
}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context="com.example.qq.MainActivity" >

<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/hello_world" />

</RelativeLayout>