Android基础：获取手机联系人工具类

Bean:

public class ContactInfo {

public String id;
public String name;
public String phone;
}

ContactUtils.java
public class ContactUtils {
/**
* 获取联系人数据
*
* @param context
* @return
*/
public static List<ContactInfo> getAllContacts(Context context) {
List<ContactInfo> list = new ArrayList<ContactInfo>();
// 获取解析者
ContentResolver resolver = context.getContentResolver();
// 访问地址
Uri raw_contacts = Uri.parse("content://com.android.contacts/raw_contacts");
Uri data = Uri.parse("content://com.android.contacts/data");
// 查询语句
// select contact_id from raw_contacts;//1 2 3 4
// select mimetype,data1 from view_data where raw_contact_id=3;
// Cursor cursor=resolver.query(访问地址, 返回字段 null代表全部, where 语句, 参数, 排序)
Cursor cursor = resolver.query(raw_contacts, new String[] { "contact_id" }, null, null, null);

while (cursor.moveToNext()) {
// getColumnIndex根据名称查列号
String id = cursor.getString(cursor.getColumnIndex("contact_id"));
// 创建实例
ContactInfo info = new ContactInfo();
info.id = id;
Cursor item = resolver.query(data, new String[] { "mimetype", "data1" }, "raw_contact_id=?", new String[] { id }, null);

while (item.moveToNext()) {
String mimetype = item.getString(item.getColumnIndex("mimetype"));
String data1 = item.getString(item.getColumnIndex("data1"));
if ("vnd.android.cursor.item/name".equals(mimetype)) {
info.name = data1;
} else if ("vnd.android.cursor.item/phone_v2".equals(mimetype)) {
info.phone = data1;
}
}
item.close();
// 添加集合
list.add(info);
}

cursor.close();
return list;
}
}