mods/atsocial_iphone_app/Classes/ContactsDataSource.m

   1 //
   2 //  ContactsDataSource.m
   3 //  ATutor
   4 //
   5 //  Created by Quang Anh Do on 10/07/2010.
   6 //  Copyright 2010 Quang Anh Do. All rights reserved.
   7 //
   8
   9 #import "ContactsDataSource.h"
  10 #import "CommonFunctions.h"
  11 #import "Contact.h"
  12 #import "ContactItemCell.h"
  13
  14
  15 @implementation ContactsDataSource
  16
  17 - (id)init {
  18         if (self = [super init]) {
  19                 NSDictionary *contactList = [NSKeyedUnarchiver unarchiveObjectWithFile:[applicationDocumentsDirectory() stringByAppendingPathComponent:@"contacts.plist"]];
  20
  21                 NSMutableDictionary *nameIndexes = [NSMutableDictionary dictionary];
  22
  23                 for (Contact *contact in contactList) {
  24                         // Setup contact item
  25                         NSString *urlString = linkToContact(contact.identifier, contact.displayName);
  26                         TTTableTextItem *contactItem = [TTTableTextItem itemWithText:contact.displayName URL:urlString];
  27
  28                         // Setup name indexes for section headers
  29                         NSString *firstLetter = [contact.displayName substringToIndex:1];
  30                         NSMutableArray *existingArray;
  31                         if (existingArray = [nameIndexes valueForKey:firstLetter]) {
  32                                 [existingArray addObject:contactItem];
  33                         } else {
  34                                 NSMutableArray *tempArray = [NSMutableArray array];
  35                                 [nameIndexes setObject:tempArray forKey:firstLetter];
  36                                 [tempArray addObject:contactItem];
  37                         }
  38
  39                         [self.items addObject:contactItem];
  40                 }
  41
  42                 // Final touches
  43                 self.sections = [[[nameIndexes allKeys] sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)] mutableCopy];
  44                 self.items = [NSMutableArray array];
  45
  46                 for (NSString *index in self.sections) {
  47                         [self.items addObject:[nameIndexes objectForKey:index]];
  48                 }
  49
  50                 TTTableSummaryItem *countItem = [TTTableSummaryItem itemWithText:[NSString stringWithFormat:@"%d Contacts", [contactList count]] URL:NULL];
  51                 [[self.items lastObject] addObject:countItem];
  52         }
  53
  54         return self;
  55 }
  56
  57 - (NSArray*)sectionIndexTitlesForTableView:(UITableView*)tableView {
  58         return [TTSectionedDataSource lettersForSectionsWithSearch:NO summary:YES];
  59 }
  60
  61 - (Class)tableView:(UITableView*)tableView cellClassForObject:(id)object {
  62         return [ContactItemCell class];
  63 }
  64
  65 @end