android获得手机联系人信息代码

public class SelectContactActivity extends Activity {
private ListView lv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_select_contact);
lv = (ListView) findViewById(R.id.lv_select_contact);
final List<Map<String, String>> data = getContactInfos();
lv.setAdapter(new SimpleAdapter(this, data, R.layout.list_contact_item,
new String[]{"name","phone"}, new int[]{R.id.tv_name,R.id.tv_phone}));

lv.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
String phone = 	data.get(position).get("phone");
Intent intent = new Intent();
intent.putExtra("phone", phone);
setResult(0, intent);
finish();
}
});
}

/**
* 获取系统的所有的联系人信息.
*
* @return
*/
public List<Map<String, String>> getContactInfos() {
List<Map<String, String>> data = new ArrayList<Map<String, String>>();
ContentResolver resolver = getContentResolver();
Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
Uri datauri = Uri.parse("content://com.android.contacts/data");
// 查询raw_contact表 取联系人id
Cursor cursor = resolver.query(uri, new String[] { "contact_id" },
null, null, null);
while (cursor.moveToNext()) {
String id = cursor.getString(0);
System.out.println("联系人的id为:" + id);
if (id != null) {
Map<String, String> map = new HashMap<String, String>();
// 查询data表 把当前联系人的数据给取出来.
Cursor dataCursor = resolver.query(datauri, null,
"raw_contact_id=?", new String[] { id }, null);
while (dataCursor.moveToNext()) {
String data1 = dataCursor.getString(dataCursor
.getColumnIndex("data1"));
String mimetype = dataCursor.getString(dataCursor
.getColumnIndex("mimetype"));
if ("vnd.android.cursor.item/phone_v2".equals(mimetype)) {
System.out.println("电话:" + data1);
map.put("phone", data1);
} else if ("vnd.android.cursor.item/email_v2"
.equals(mimetype)) {
System.out.println("邮件地址:" + data1);
map.put("email", data1);
} else if ("vnd.android.cursor.item/name".equals(mimetype)) {
System.out.println("姓名:" + data1);
map.put("name", data1);
}
}
data.add(map);
dataCursor.close();
}
}
cursor.close();
return data;
}
}