//读取联系人 public static Uri CONTACTSURI = ContactsContract.Contacts.CONTENT_URI;//联系人     public static void getContactsInfo(Context context,String tag){         String[] projections = new String[]{ContactsContract.Contacts._ID,ContactsContract.Contacts.DISPLAY_NAME};         Cursor cursor = context.getContentResolver().query(CONTACTSURI, projections, null, null, null);         int albumIndex = cursor.getColumnIndexOrThrow(projections[0]);         int titleIndex = cursor.getColumnIndexOrThrow(projections[1]);         Log.d(tag, cursor.getCount()+"");         while(cursor.moveToNext()){             String album = cursor.getString(albumIndex);             String title = cursor.getString(titleIndex);             Log.d(tag, album+":"+title);         }         cursor.close();     }          //根据联系人搜索联系人信息     public static void searchContacts(Context context,String tag){         String searchName = "Wang";         Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_FILTER_URI, searchName);              //  Uri uri2 = Uri.withAppendedPath(ContactsContract.PhoneLookup.CONTENT_FILTER_URI, phoneNumber); 根据电话号码查找联系人                  String[] projection = new String[]{ContactsContract.Contacts._ID};         Cursor cursor = context.getContentResolver().query(uri, projection, null, null, null);         String id = null;         if (cursor.moveToFirst()) {             id = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.Contacts._ID));         }         cursor.close();         if (id!=null) {             String where = ContactsContract.Data._ID+"="+id;             projection = new String[]{ContactsContract.Data.DISPLAY_NAME,ContactsContract.CommonDataKinds.Phone.NUMBER};             Cursor searchcCursor = context.getContentResolver().query(ContactsContract.Data.CONTENT_URI, projection, where, null, null);             Log.d(tag, searchcCursor.getCount()+"");             int nameIndex = searchcCursor.getColumnIndex(projection[0]);             int numberIndex = searchcCursor.getColumnIndex(projection[1]);             while(searchcCursor.moveToNext()){                 String name = searchcCursor.getString(nameIndex);                 String number = searchcCursor.getString(numberIndex);                 Log.d(tag, number+":"+name);             }             searchcCursor.close();         }     }