Android简单获得通讯录

ContactActivity：

 1 package com.example.practice5_service;
 2
 3 import java.util.ArrayList;
 4 import java.util.HashMap;
 5 import java.util.List;
 6 import java.util.Map;
 7
 8 import com.example.adapter.simpleAdapter;
 9
10 import android.app.Activity;
11 import android.content.ContentResolver;
12 import android.database.Cursor;
13 import android.net.Uri;
14 import android.os.Bundle;
15 import android.provider.CallLog;
16 import android.support.v4.widget.SimpleCursorAdapter;
17 import android.view.Menu;
18 import android.view.MenuItem;
19 import android.widget.ListAdapter;
20 import android.widget.ListView;
21
22 public class ContactActivity extends Activity {
23     private ListView phone_listview;
24     private List<Map<String,String>> addressList;
25     private simpleAdapter adapter;
26
27     private ListAdapter listAdaper;
28     private ContentResolver resolver;
29     @Override
30     protected void onCreate(Bundle savedInstanceState) {
31         super.onCreate(savedInstanceState);
32         setContentView(R.layout.activity_contact);
33         initView();
34         loadData();
35     }
36
37     public void initView() {
38         phone_listview=(ListView) findViewById(R.id.phone_listview);
39         addressList=new ArrayList<Map<String,String>>();
40         adapter=new simpleAdapter(this,addressList,R.layout.phone_message,
41                 new String[]{"id","name","phoneNum"},
42                 new int[]{R.id.phone_id,R.id.name_phone,R.id.num_phone});
43
44         phone_listview.setAdapter(adapter);
45     }
46     public void loadData(){
47         //内容接受者取得内容提供者中的数据
48         resolver=super.getContentResolver();//获得ContentResolver,有增删改查的方法
49         Cursor result=resolver.query(CallLog.Calls.CONTENT_URI, null, null, null, null);//获得CallLog.CONTENT_URI对应的信息
50         while(result.moveToNext()){
51             Map<String,String> row=new HashMap<String, String>();
52             int id=result.getInt(result.getColumnIndex(CallLog.Calls._ID));
53             String name=result.getString(result.getColumnIndex(CallLog.Calls.CACHED_NAME));
54             String phoneNum=result.getString(result.getColumnIndex(CallLog.Calls.NUMBER));
55             row.put("id", String.valueOf(id));
56             row.put("name", name);
57             row.put("phoneNum", phoneNum);
58             addressList.add(row);
59         }
60         result.close();
61         adapter.notifyDataSetChanged();
62     }
63 }

simpleAdapter：

 1 package com.example.adapter;
 2
 3 import java.util.List;
 4 import java.util.Map;
 5
 6 import android.content.Context;
 7 import android.view.View;
 8 import android.view.ViewGroup;
 9 import android.widget.BaseAdapter;
10 import android.widget.SimpleAdapter;
11
12 public class simpleAdapter extends SimpleAdapter {
13
14     public simpleAdapter(Context context, List<? extends Map<String, ?>> data,
15             int resource, String[] from, int[] to) {
16         super(context, data, resource, from, to);
17         // TODO Auto-generated constructor stub
18     }
19 }