Android(安卓)获取联系人的姓名、电话信息

//获取联系人的姓名、电话信息 public List<ContactInfo> getContact() {                          //取得ContentResolver         ContentResolver content = getContentResolver();                                          Uri uri = ContactsContract.Contacts.CONTENT_URI;                //联系人的URI         Cursor cursor = content.query(uri,null, null, null, null);         int contactCount = cursor.getCount();                //获得联系人数目           List<ContactInfo> contacts = new ArrayList<ContactInfo>(contactCount);                    if (cursor.moveToFirst())         {                 // 循环遍历                 for (;!cursor.isAfterLast();cursor.moveToNext())                 {                         List<String> allPhoneNum = null;                         ContactInfo contact = new ContactInfo();                                                                   int idColumn = cursor.getColumnIndex(ContactsContract.Contacts._ID);                         int displayNameColumn = cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);                         int phoneColumn = cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER);                                                                    // 获得联系人的ID号                         String contactId = cursor.getString(idColumn);                         contact.setContactId(contactId);                         // 获得联系人姓名                         String disPlayName = cursor.getString(displayNameColumn);                         contact.setContactName(disPlayName);                                           // 电话号码的个数                         //String phoneString = cursor.getString(phoneColumn);                         int phoneNum = cursor.getInt(phoneColumn);                                                                           if (phoneNum > 0)                         {                                 // 获得联系人的电话号码的cursor;                                 Cursor phones = content.query(                                                 ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,  ContactsContract.CommonDataKinds.Phone.CONTACT_ID+ " = " + contactId,   null, null);     int phoneCount = phones.getCount();                                 allPhoneNum = new ArrayList<String>(phoneCount);                                 if (phones.moveToFirst())                                 {                                         // 遍历所有的电话号码                                         for (;!phones.isAfterLast();phones.moveToNext())                                         {                                                                                                  String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));                                                 allPhoneNum.add(phoneNumber);                                         }                                                                           if (!phones.isClosed())                                         {                                                 phones.close();                                         }                                 }                         }                                           contact.setContactPhone(allPhoneNum);                         contacts.add(contact);                 }                           if (!cursor.isClosed())                 {                         cursor.close();                 }         }         return contacts; }public class ContactInfo{ private String contactId; private String contactName; private List<String> contactPhone;  public String getContactId() {         return contactId; }  public String getContactName() {         return contactName; }  public List<String> getContactPhone() {         return contactPhone; }  public void setContactId(String id) {         contactId = id; }  public void setContactName(String name) {         contactName = name; }  public void setContactPhone(List<String> phone) {         contactPhone = phone; }}
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