안드로이드 연락처 삭제(bulkDelete, AllDelete)

안드로이드 연락처 앱에 있는 연락처를  선택한 것만 삭제하는 메소드(bulkDelete) 와 모든 연락처를 삭제하는 메소드다.

public class ContactHelper {     // 연락처 총개수 파악     public static int getContactsTotalCount(ContentResolver contactHelper) {         Cursor cursor = contactHelper.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);         return cursor.getCount();     }     public static void bulkDelete(ContentResolver contactHelper,long[] ids){         if (ids.length == 0) { // 삭제할 데이터가 없으면             return;         }         StringBuilder where=new StringBuilder();         where.append(RawContacts.CONTACT_ID);         where.append(" IN (");         where.append(Long.toString(ids[0]));         for (int i=1; i < ids.length; i++) {             where.append(',');             where.append(Long.toString(ids[i]));         }         where.append(')');         try {             contactHelper.delete(RawContacts.CONTENT_URI,where.toString(),null);         } catch (Exception e) {             e.printStackTrace();         }     }     // 모든 연락처 삭제     public static void deleteAllContact(ContentResolver contactHelper) {         contactHelper.delete(RawContacts.CONTENT_URI, null, null);     } }

사용법

long[] ids = new long[]{16258,15265,15441,15542,16278};
ContactHelper.bulkDelete(getContentResolver(), ids);

위와 같이 수동으로 해당 CONTACT_ID를 직접 적어주고 테스트를 했다.

하지만 앱으로 구현한다면, CustomListView 에서 체크박스를 선택한 것만 삭제되도록 구현하면 될 것이다.

체크한 것만 ArrayList 에 담고 ArrayList 를 배열로 변환한 다음에

ContactHelper.bulkDelete(getContentResolver(), ids);

를 실행하면 될 것이다.

다만 IN 안에 들어가는 인수의 개수를 어느 범위까지 허용하는지 여부는 테스트를 안해봐서 장담할 수가 없다.

성명(display_name) 과 전화번호, CONTACT_ID 를 구할 수 있는 Cursor 메소드

// Display Name 이 포함된 모든 Cursor 반환     public static Cursor getContactCursorFromDisplayNameLIKE(ContentResolver contactHelper, String display_name) {         // 검색할 칼럼 정하기, null 이면 모든 필드         String[] projection = {Phone.CONTACT_ID,Phone._ID, Phone.DISPLAY_NAME, Phone.NUMBER};         // Cursor를 얻기 위한 쿼리 조건         String where = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " like \'%" + display_name + "%\'";         String sortOrder = ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " ASC";         Cursor cursor = null;         try {             if (display_name != null && !display_name.equals("")) {                 cursor = contactHelper.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, projection, where, null,                         sortOrder);             } else {                 cursor = contactHelper.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, projection, null, null,                         ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME + " ASC");             }             cursor.moveToFirst();         } catch (Exception e) {             e.printStackTrace();         }         return cursor;     }

public class MainActivity extends AppCompatActivity {     private ArrayList<String> contactRawContactID;     private ArrayList<String> contactDataID;     private ArrayList<String> contactNames;     private ArrayList<String> contactNumbers;     ArrayAdapter<String> adapter;     ListView listView;     private Cursor cursor;     @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);         listView = (ListView) findViewById(R.id.list);         TextView tv_getCount = (TextView) findViewById(R.id.tv_getContactCount);         tv_getCount.setText("총 " + String.valueOf(ContactHelper.getContactsTotalCount(getContentResolver())) + " 개");         contactRawContactID = new ArrayList<String>();         contactDataID = new ArrayList<String>();         contactNames = new ArrayList<String>();         contactNumbers = new ArrayList<String>();         cursor = ContactHelper.getContactCursorFromDisplayNameLIKE(getContentResolver(), "");         cursor.moveToFirst();         while (!cursor.isAfterLast()) {             contactRawContactID.add(cursor.getString(0));             contactDataID.add(cursor.getString(1));             contactNames.add(cursor.getString(2));             contactNumbers.add(cursor.getString(3));             cursor.moveToNext();         }         adapter = new MyAdapter(this, android.R.layout.simple_list_item_1, R.id.tvNameMain, contactNames);         listView.setAdapter(adapter);     }     private class MyAdapter extends ArrayAdapter<String> {         public MyAdapter(Context context, int resource, int textViewResourceId, ArrayList<String> conNames) {             super(context, resource, textViewResourceId, conNames);         }         @Override         public View getView(int position, View convertView, ViewGroup parent) {             View row = setList(position, parent);             return row;         }         private View setList(final int position, ViewGroup parent) {             LayoutInflater inf = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);             View row = inf.inflate(R.layout.liststyle, parent, false);             TextView tvRawContactID = (TextView) row.findViewById(R.id.tvRawContactID);             TextView tvDataID = (TextView) row.findViewById(R.id.tvDataID);             TextView tvName = (TextView) row.findViewById(R.id.tvNameMain);             TextView tvNumber = (TextView) row.findViewById(R.id.tvNumberMain);             tvRawContactID.setText("RawContact_ID : " + contactRawContactID.get(position));             tvDataID.setText("Data_ID : " + contactDataID.get(position));             tvName.setText(contactNames.get(position));             tvNumber.setText("No: " + contactNumbers.get(position));             return row;         }     } }