1.0、查看系统通讯录的表,表路径:data—>data—>com.android.providers.contacts—>databases—>contacts2.db
1.1、其中重要的表有:
- raw_contacts表(可查看上次通话记录、可获取联系人的id(“contact_id”));
- data表(保存了联系人的号码与名字,可获取联系人的rid(“raw_contact_id”)(id==rid),可获取信息种类的id(“mimetype_id”));
- mimetype表(保存了信息种类名称,id=5(vnd.android.cursor.item/phone_v2)电话号码)
- 视图表:view_data表()可查看多表间的数据关系
2.0、流程:
- 首先,从raw_contacts中读取联系人的id(“contact_id”)
- 其次, 根据contact_id从data表中查询出相应的电话号码和联系人名称
- 然后,根据mimetype来区分哪个是联系人,哪个是电话号码
- 最后将数据填充到ListView中
3.0、布局:
1. activity_main.xml:
<ListView
android:id="@+id/lv_list"
android:layout_width="match_parent"
android:layout_height="match_parent" />
- 1
- 2
- 3
- 4
- 5
2、contact_list_item.xml:
<TextView
android:id="@+id/tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20sp" />
<TextView
android:id="@+id/tv_phone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="18sp" />
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
3.1、代码:
public class MainActivity extends Activity {
private ListView lvList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
lvList = (ListView) findViewById(R.id.lv_list);
ArrayList<HashMap<String, String>> readContact = readContact();
// System.out.println(readContact);
lvList.setAdapter(new SimpleAdapter(this, readContact,
R.layout.contact_list_item, new String[] { "name", "phone" },
new int[] { R.id.tv_name, R.id.tv_phone }));
}
/**
*得到联系人
**/
private ArrayList<HashMap<String, String>> readContact() {
// 首先,从raw_contacts中读取联系人的id("contact_id")
// 其次, 根据contact_id从data表中查询出相应的电话号码和联系人名称
// 然后,根据mimetype来区分哪个是联系人,哪个是电话号码
Uri rawContactsUri = Uri.parse("content://com.android.contacts/raw_contacts");
Uri dataUri = Uri.parse("content://com.android.contacts/data");
ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>();
// 从raw_contacts中读取所有联系人的id("contact_id")
Cursor rawContactsCursor = getContentResolver().query(rawContactsUri,
new String[] { "contact_id" }, null, null, null);
if (rawContactsCursor != null) {
while (rawContactsCursor.moveToNext()) {
String contactId = rawContactsCursor.getString(0);
// System.out.println("得到的contact_id="+contactId);
// 根据contact_id从data表中查询出相应的电话号码和联系人名称, 实际上查询的是视图view_data
Cursor dataCursor = getContentResolver().query(dataUri,
new String[] { "data1", "mimetype" }, "contact_id=?",
new String[] { contactId }, null);
if (dataCursor != null) {
HashMap<String, String> map = new HashMap<String, String>();
while (dataCursor.moveToNext()) {
String data1 = dataCursor.getString(0);
String mimetype = dataCursor.getString(1);
// System.out.println(contactId + ";" + data1 + ";"
// + mimetype);
if ("vnd.android.cursor.item/phone_v2".equals(mimetype)) {//手机号码
map.put("phone", data1);
} else if ("vnd.android.cursor.item/name".equals(mimetype)) {//联系人名字
map.put("name", data1);
}
}
list.add(map);
dataCursor.close();
}
}
rawContactsCursor.close();
}
return list;
}
}
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
- 36
- 37
- 38
- 39
- 40
- 41
- 42
- 43
- 44
- 45
- 46
- 47
- 48
- 49
- 50
- 51
- 52
- 53
- 54
- 55
- 56
- 57
- 58
- 59
- 60
- 61
- 62
- 63
3.2、添加权限:
<uses-permission android:name="android.permission.READ_CONTACTS"/>
- 1
4.0、可调取系统的通讯录程序得到联系人数据
-------------------------------------------------------------------------------------------------------------------------------------------------
附录关于权限的处理
https://inthecheesefactory.com/blog/things-you-need-to-know-about-android-m-permission-developer-edition/en
------------------------------------------------------------------------------------------------------------------------------------------------
本篇文章的权限处理
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { int hasWriteContactsPermission = checkSelfPermission(Manifest.permission.READ_CONTACTS); if (hasWriteContactsPermission != PackageManager.PERMISSION_GRANTED) { requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, REQUEST_CODE_ASK_PERMISSIONS); return; } }