读取联系人

//读取联系人

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 }));
}

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 rawContactUri = 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中读取联系人的id("contact_id")
Cursor rawContactsCursor = getContentResolver().query(rawContactUri,
new String[] { "contact_id" }, null, null, null);

if (rawContactsCursor != null) {
while (rawContactsCursor.moveToNext()) {
String contactId = rawContactsCursor.getString(0);

// 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)) {
map.put("phone", data1);
} else if ("vnd.android.cursor.item/name"
.equals(mimetype)) {
map.put("name", data1);
}
}

list.add(map);
dataCursor.close();
}
}
rawContactsCursor.close();
}

return list;
}

<uses-permission android:name="android.permission.READ_CONTACTS"/>