【数据存储】SQLite数据库存储（10）----- 操作通讯记录的ContentProvider

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.CallLog;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public class MyCallContentProviderDemo extends Activity {
// 定义ListView组件
private ListView callList = null ;
// 全部联系人
private Cursor result = null ;
// 用于设置SimpleAdapter
private List<Map<String,Object>> allCalls = null ;
// 联系人信息
private SimpleAdapter simple = null ;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.main);
this.callList =
(ListView) super.findViewById(R.id.callList) ;
// 查询通话记录
this.result = super.getContentResolver().query(
CallLog.Calls.CONTENT_URI, null, null, null, null);
System.out.println("************ "
+ this.result.getCount()) ;
// 交给程序
this.startManagingCursor(this.result) ;
this.allCalls = new ArrayList<Map<String,Object>>() ;
// 取出数据
for (this.result.moveToFirst(); !result.isAfterLast();
result.moveToNext()) {
Map<String,Object> contact =
new HashMap<String,Object>() ;
// 设置一行的_id内容
contact.put("_id",            result.getInt(result.getColumnIndex(CallLog.Calls._ID)));
// 取出相匹配的联系人姓名
String nameTemp = this.result.getString(
this.result.getColumnIndex(CallLog.Calls.CACHED_NAME)) ;
if (nameTemp == null || "".equals(nameTemp)) {
nameTemp = "未知" ;
}
contact.put("name",nameTemp);
contact.put("number",
result.getString(result.getColumnIndex(
CallLog.Calls.NUMBER)));
this.allCalls.add(contact) ;
}
this.simple = new SimpleAdapter(this, this.allCalls,
R.layout.calls,
new String[] { "_id", "name", "number" },
new int[] { R.id._id,R.id.name, R.id.number });
this.callList.setAdapter(this.simple) ;
}
}